Comtech EFData SMS 301 Redundancy Switch, RS 301 Remote Switch, SDM 300, SDM 300A, SDM 2020 Satellite Modem Installation and Operation Manual

SMS-301
Redundancy Switch
Installation and Operation Manual
Part Number MN/SMS301.IOM
Revision 3
SMS-301
Redundancy Switch
Installation and Operation Manual
Comtech EFData is an ISO 9001
Registered Company.
Part Number MN/SMS301.IOM
Revision 3
November 19, 1999
Copyright © Comtech EFData, 2000. All rights reserved. Printed in the USA.
Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2200, FAX: (480) 333-2161.
Customer Support
Contact the Comtech EFData Customer Support Department for:
• Product support or training
• Information on upgrading or returning a product
• Reporting comments or suggestions concerning manuals
A Customer Support representative may be reached at:
Comtech EFData
Attention: Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA
(480) 333-2200 (Main Comtech EFData Number)
(480) 333-4357 (Customer Support Desk)
(480) 333-2161 FAX
or, E-Mail can be sent to the Customer Support Department at:
[email protected]
Contact us via the web at www.comtechefdata.com.
1. To return a Comtech EFData product (in-warranty and out-of-warranty) for
repair or replacement:
2. Request a Return Material Authorization (RMA) number from the Comtech
EFData Customer Support Department.
3. Be prepared to supply the Customer Support representative with the model
number, serial number, and a description of the problem.
4. To ensure that the product is not damaged during shipping, pack the product in
its original shipping carton/packaging.
5. Ship the product back to Comtech EFData. (Shipping charges should be prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. xi.
ii
Rev. 3
Table of Contents
CHAPTER 1. INTRODUCTION.................................................................................. 1–1
1.1
Description............................................................................................................................................... 1–2
1.1.1
Description (Standard Configuration) ............................................................................................... 1–2
1.1.2
Description (With RS-301 Option) ................................................................................................... 1–3
1.1.3
Board List.......................................................................................................................................... 1–4
1.2
Front Panel .............................................................................................................................................. 1–5
1.3
Specifications ........................................................................................................................................... 1–6
CHAPTER 2. INSTALLATION ................................................................................... 2–1
2.1
Unpacking ................................................................................................................................................ 2–1
2.2
System Installation .................................................................................................................................. 2–2
2.3
External Connections.............................................................................................................................. 2–3
2.3.1
Remote Switch Control (J1) (RS-301 Option) .................................................................................. 2–5
2.3.2
Data I/O Connections ........................................................................................................................ 2–6
2.3.2.1
Data I/O Connector (J1, J2, J3), 50-Pin (PL/5951) ....................................................................... 2–6
2.3.2.2
Data I/O Connector (J1, J2, J3), 37-Pin (PL/5952) ........................................................................ 2–7
2.3.2.3
Data I/O Connector (J1, J2, J3), 25-Pin (PL/6026) ....................................................................... 2–8
2.3.2.4
Data I/O (J1, J2, J3) 37-Pin (PL/6201-1) ...................................................................................... 2–9
2.3.2.5
Data I/O Connector (J1, J2, J3) 37-Pin (PL/6201-2)................................................................... 2–10
2.3.2.6
100 Pin interface (RS-301 Option) (PL/6542/PL/6627).............................................................. 2–11
2.3.3
Transmit IF Connectors (J4, J5, J6) ................................................................................................ 2–13
2.3.4
RX IF Connectors (J7, J8, J9) ......................................................................................................... 2–13
2.3.5
Remote Control Interface Connector (J10) ..................................................................................... 2–14
2.3.6
Prime Power .................................................................................................................................... 2–15
2.3.6.1
AC Power (J11 and J12).............................................................................................................. 2–15
2.3.6.2
DC Power (J11 and J12) (Optional) ............................................................................................ 2–15
2.3.7
Switch/Modem Communications Interface Connector (J13) .......................................................... 2–16
2.3.8
Status/Fault (J14) ............................................................................................................................ 2–17
2.3.9
IF Connections: Transmit and Receive ........................................................................................... 2–17
2.3.10
Ground ............................................................................................................................................ 2–17
Rev. 3
iii
Preface
SMS-301 Redundancy Switch
CHAPTER 3. OPERATION .........................................................................................3-1
3.1
Configuration ........................................................................................................................................... 3-1
3.2
Setup and Configuration ......................................................................................................................... 3-2
3.2.1
Utility System..................................................................................................................................... 3-3
3.2.2
Configuration ..................................................................................................................................... 3-3
3.2.2.1
Prime .............................................................................................................................................. 3-3
3.2.2.2
Backup ........................................................................................................................................... 3-4
3.2.2.3
Operation Mode ............................................................................................................................. 3-5
3.3
Faults......................................................................................................................................................... 3-5
3.4
Front Panel Keypad ................................................................................................................................. 3-6
3.5
Menu System ............................................................................................................................................ 3-7
3.5.1
Front Panel Menus ............................................................................................................................. 3-9
3.5.1.1
Configuration Switch Control Menu ............................................................................................ 3-11
3.5.1.2
Configuration System Menu ........................................................................................................ 3-13
3.5.1.3
Configuration Save Menu ............................................................................................................ 3-15
3.5.1.4
Configuration Recall Menu .......................................................................................................... 3-16
3.5.1.5
Monitor Menu .............................................................................................................................. 3-17
3.5.1.6
Faults/Alarms ............................................................................................................................... 3-19
3.5.1.7
Stored Faults/Alarms.................................................................................................................... 3-21
3.5.1.8
Utility System............................................................................................................................... 3-23
3.5.1.9
Utility Modem Control................................................................................................................. 3-27
CHAPTER 4. THEORY OF OPERATION ...................................................................4-1
4.1
Monitor and Control (M&C) .................................................................................................................. 4-1
4.1.1
Theory of Operation ........................................................................................................................... 4-2
4.2
SMS-301 Data Interface .......................................................................................................................... 4-3
4.2.1
IBS, IDR, ASYNC, or D&I (J1, J2, J3), 50-Pin (PL/5951) ............................................................... 4-3
4.2.2
EIA-422/-449, G.703, or V.35 (J1, J2, J3), 37-Pin (PL/5952) ........................................................... 4-3
4.2.3
LVDS-DVB TX, (J1, J2, J3), 37-Pin, (PL/6201-1)............................................................................ 4-3
4.2.4
EIA-422/DVB TX (J1, J2, J3), 25-Pin (PL/6026).............................................................................. 4-4
4.3
Remote Switch (RS-301) Option ............................................................................................................. 4-5
CHAPTER 5. MAINTENANCE....................................................................................5-1
5.1
Software Revisions ................................................................................................................................... 5-1
5.2
Test Points and LEDs............................................................................................................................... 5-3
5.3
Fault Isolation........................................................................................................................................... 5-4
iv
Rev. 3
SMS-301 Redundancy Switch
Preface
APPENDIX A. REMOTE CONTROL OPERATION ................................................... A-1
A.1
General..................................................................................................................................................... A-1
A.2
Message Structure................................................................................................................................... A-2
A.2.1
Start Character................................................................................................................................... A-2
A.2.2
Device Address ................................................................................................................................. A-3
A.2.3
Command/Response.......................................................................................................................... A-3
A.2.4
End Character.................................................................................................................................... A-4
A.3
Configuration Commands/Responses.................................................................................................... A-5
A.4
Modem Communications Configuration Commands/Responses........................................................ A-6
A.5
System Commands/Responses ............................................................................................................... A-7
A.6
Status Commands/Responses ................................................................................................................. A-8
A.7
Fault Summary Status Commands/Responses ..................................................................................... A-9
A.8
Stored Faults.......................................................................................................................................... A-10
APPENDIX B. SDM-300/-300A SYSTEM INSTALLATIONS.................................... B–1
B.1
System Installation ..................................................................................................................................B–1
B.1.1
System Installation (Standard Configuration) ...................................................................................B–2
B.1.2
System Installation (RS-301 Switch Installed)..................................................................................B–5
B.1.3
Connect System Installation with RS-301 Switch.............................................................................B–6
APPENDIX C SDM-2020 SYSTEM INSTALLATIONS .............................................. C–1
C.1
Installation Options.................................................................................................................................C–1
C.1.1
Connect Low Voltage Differential Signal Interface (Optional) ........................................................C–1
C.1.1.1
Description ....................................................................................................................................C–1
C.1.1.2
Connect to SDM-2020 Modulator with LVDS Interface ..............................................................C–3
C.1.2
Connect to SDM-2020 Satellite Modulator with EIA-422 Interface.................................................C–4
C.1.2.1
Description ....................................................................................................................................C–4
C.1.2.2
Connect to SDM-2020 Modulator with EIA-422 Interface...........................................................C–5
C.1.3
Connect to SDM-2020 Satellite Modulator with EIA-422 DVB TX Interface ................................C–6
C.1.3.1
Description ....................................................................................................................................C–6
C.1.3.2
Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface ...........................................C–7
C.1.4
Connect to SDM-2020 Satellite Modulator with EIA-422 (DVB) TX Interface (100 Mbit/s) .........C–9
C.1.4.1
Description ....................................................................................................................................C–9
C.1.4.2
Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface .........................................C–10
C.1.5
Connect to SDM-2020 Satellite Modulator I/O Connector, 25-Pin Interface .................................C–12
C.1.5.1
Description ..................................................................................................................................C–12
C.1.5.2
Connect to SDM-2020 Modulator with I/O Connector, 25-Pin Interface ...................................C–12
GLOSSARY ................................................................................................................g–1
INDEX .......................................................................................................................... i–1
Rev. 3
v
Preface
SMS-301 Redundancy Switch
Figures
Figure 1-1. SMS-301 ........................................................................................................................................... 1–1
Figure 1-2. System Block Diagram (Standard Configuration) ............................................................................ 1–2
Figure 1-3. System Block Diagram (With RS-301 Option)................................................................................. 1–3
Figure 2-1. SMS-301 Rear Panel Configurations ................................................................................................ 2–3
Figure 3-1. SMS-301 Front Panel View ............................................................................................................... 3-1
Figure 3-2. Keypad ............................................................................................................................................... 3-6
Figure 3-3. Main Menu......................................................................................................................................... 3-9
Figure 3-4. Configuration Switch Control Menu................................................................................................ 3-10
Figure 3-5. Configuration System Menu ............................................................................................................ 3-12
Figure 3-6. Configuration Save Menu ................................................................................................................ 3-15
Figure 3-7. Configuration Recall Menu.............................................................................................................. 3-16
Figure 3-8. Monitor Menu .................................................................................................................................. 3-17
Figure 3-9. Faults/Alarms Menu......................................................................................................................... 3-18
Figure 3-10. Stored Faults/Alarms Menu ........................................................................................................... 3-20
Figure 3-11. Utility System Menu ...................................................................................................................... 3-22
Figure 3-12. Utility Modem Control Menu ........................................................................................................ 3-26
Figure B-1. System Installation (Standard Configuration) ..................................................................................B–3
Figure B-2. System Installation (RS-301 Installed).............................................................................................B–6
Figure C-1. Connect to SDM-2020 Modulator with LVDS Interface .................................................................C–3
Figure C-2. Connect to SDM-2020 Modulator with EIA-422 Interface..............................................................C–5
Figure C-3. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface (18 Mbit/s Serial Data).....C–8
Figure C-4. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface (100 Mbit/s Parallel Data)C–11
Figure C-5. Connect to SDM-2020 Modulator with I/O Connector, 25-Pin Interface ......................................C–13
vi
Rev. 3
SMS-301 Redundancy Switch
Preface
Tables
Table 1-1. Board List
Table 1-2. LED Status Indictors
Table 1-3. 1:1 Switch Specifications
Table 2-1. Rear Panel Connectors (Standard Configuration)
Table 2-2. Rear Panel Connectors (With RS-301 Option)
Table 2-3. Switch Control Interface Signals
Table 2-4. Data I/O Connector, 50-Pin
Table 2-5. Data I/O Connectors, 37-Pin
Table 2-6. Connector Assignments, 25-Pin
Table 2-7. Connector Assignments, 37-Pin
Table 2-8. Connector Assignments, 37-Pin
Table 2-9. Data I/O Connector, 100-Pin
Table 2-10. Remote Control Interface Connector Pinout Data (J10)
Table 2-11. AC Power (J11 and J12)
Table 2-12. DC Prime Power (J11 and J12)
Table 2-13. Switch/Modem Communications Interface Connector (J13)
Table 2-14. Status/Faults (J14) Pinout Assignments
Table 3-1. Default Configuration Parameters
Table 3-2. Keypad Functions
Table 4-1. Remote Switch (RS-301) Connectors
Table 4-2. Tributary 1 Data (J1)
Table 4-3. Tributary 2 Data (J2)
Table 4-4. Tributary 3 Data (J3)
Table 4-5. Tributary 4 Data (J4)
Table 4-6. Tributary 5 Data (J5)
Table 4-7. Tributary 6 Data (J6)
Table 4-8. Tributary 7 Data (J7)
Table 4-9. Tributary 8 Data (J8)
Table 4-10. AUX Data (J9)
Table 4-11. Modem A Data (J14)
Table 4-12. Modem B Data (J15)
Table 4-13. Switch Control Interface (J16)
Table 5-1. LED Functions
Table 5-2. Fault Isolation, 1:1 Switch
Table B-1. Standard Configuration Cabling
Table B-2. RS-301 Configuration Cabling
Table C-1. LVDS/DVB Specifications
Table C-2. EIA-422/EIA-530 Specifications
Table C-3. EIA-422/EIA-530 Specifications
Table C-4. Cable Pin Assignments (CA/6217)
Table C-5. Cable Pin Assignments (CA/6217)
Table C-6. Pin Assignments, 25-Pin
Rev. 3
1–4
1–5
1–6
2–4
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–14
2–15
2–15
2–16
2–17
3-2
3-6
4-5
4-6
4-6
4-6
4-7
4-7
4-7
4-8
4-8
4-8
4-9
4-10
4-11
5-3
5-4
B–2
B–5
C–2
C–4
C–6
C–7
C–10
C–12
vii
Preface
SMS-301 Redundancy Switch
Overview of Changes to Previous Edition
This revision supersedes part number MN/SMS301.IOM Rev. 2, dated February 6, 1998
A summary of the changes made for Rev. 3 includes:
• Various non-technical cosmetic changes (formatting, etc.).
• Add new EMC directive.
• Revised Table 1-1 Board List.
• Revised Table 1-3 to include Control Box Extender Card Connector.
• Revised paragraph 2.2 to relocatecabling instructions to appendices.
• Paragraph 2.3, Rearranged section.
• Added Standard Configuration to Figure 2-1.
• Added Table 2-1 to reflect standard configuration and renumbered Table 2-2 as
RS-301 Connectors.
• Reidentified paragrapgh 2.3.1 as RS-301 option.
• Relocated different installtion options from Section 2 to appendices.
• Updated menus to reflect version 1.1.6.
• Deleted Sections 4.6 and 4.7. Data relocated to Chapter 2.
• Revised Chapter 4, to rearrange data interfaces.
• Revised Appendix A to reflect FW/6055-1E.
• Added Appendix B to reflect SDM-300/-300A cabling.
• Added Appendix C to reflect SDM-2020M cabling.
About this Manual
This manual provides installation and operation information for the Comtech EFData
SMS-301 redundancy switch. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of
the SMS-301.
Conventions and References
Cautions and Warnings
CAUTIO N
CAUTION indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury. CAUTION may also be used to indicate other
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
WARNIN G
viii
Rev. 3
SMS-301 Redundancy Switch
Preface
Metric Conversion
Metric conversion information is located on the inside back cover of this manual. This
information is provided to assist the operator in cross-referencing English to Metric
conversions.
Recommended Standard Designations
Recommended Standard (RS) Designations have been superseded by the new designation
of the Electronic Industries Association (EIA). References to the old designations are
shown only when depicting actual text displayed on the screen of the unit (RS-232, RS485, etc.). All other references in the manual will be shown with the EIA designations
(EIA-232, EIA-485, etc.) only.
Trademarks
Other product names mentioned in this manual may be trademarks or registered
trademarks of their respective companies and are hereby acknowledged.
Reporting Comments or Suggestions Concerning this Manual
Comments and suggestions regarding the content and design of this manual will be
appreciated. To submit comments, please contact the Comtech EFData Customer Support
Department.
EMC Compliance
EN55022 Compliance
This equipment meets EN5022.
This is a Class A product. In a domestic environment, it may cause radio interference in
which the user may be required to take adequate measures.
Rev. 3
ix
Preface
SMS-301 Redundancy Switch
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for a Class A digital
device, following Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment.
This equipment generates uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communication. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
Note: To ensure compliance, properly shielded cables for DATA I/O shall be used. More
specifically, these cables shall be doubled-shielded from end-to-end, ensuring a
continuous shield.
Low Voltage Directive (LVD)
The following information is applicable for the European Low Voltage Directive
(EN60950):
<HAR>
!
Type of power cord required for use in the European Community.
CAUTION: Double-pole/Neutral Fusing.
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.
International Symbols:
Alternating Current.
Fuse.
Safety Ground.
Chassis Ground.
Note:
1. Applicable testing is routinely performed as a condition of manufacturing on all
units to ensure compliance with requirements of EN60950 for Safety.
x
Rev. 3
SMS-301 Redundancy Switch
Preface
Warranty Policy
This Comtech EFData product is warranted against defects in material and workmanship
for a period of one year from the date of shipment. During the warranty period, Comtech
EFData will, at its option, repair or replace products that prove to be defective.
For equipment under warranty, the customer is responsible for freight to Comtech
EFData and all related custom, taxes, tariffs, insurance, etc. Comtech EFData is
responsible for the freight charges only for return of the equipment from the factory to
the customer. Comtech EFData will return the equipment by the same method (i.e., Air,
Express, Surface) as the equipment was sent to Comtech EFData.
Limitations of Warranty
The foregoing warranty shall not apply to defects resulting from improper installation or
maintenance, abuse, unauthorized modification, or operation outside of environmental
specifications for the product, or, for damages that occur due to improper repackaging of
equipment for return to Comtech EFData.
No other warranty is expressed or implied. Comtech EFData specifically disclaims the
implied warranties of merchantability and fitness for particular purpose.
Exclusive Remedies
The remedies provided herein are the buyer's sole and exclusive remedies. Comtech
EFData shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
Disclaimer
Comtech EFData has reviewed this manual thoroughly in order that it will be an easy-touse guide to your equipment. All statements, technical information, and
recommendations in this manual and in any guides or related documents are believed
reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and
they are not intended to be, nor should they be understood to be, representations or
warranties concerning the products described. Further, Comtech EFData reserves the
right to make changes in the specifications of the products described in this manual at any
time without notice and without obligation to notify any person of such changes.
If you have any questions regarding your equipment or the information in this manual,
please contact the Comtech EFData Customer Support Department.
Rev. 3
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Preface
SMS-301 Redundancy Switch
This page is intentionally blank.
xii
Rev. 3
1
Chapter 1.
INTRODUCTION
This manual describes the SMS-301 redundancy switch, referred to in this manual as the
“1:1 switch” (Figure 1-1).
Figure 1-1. SMS-301
Rev. 3
1–1
Introduction
SMS-301 Redundancy Switch
1.1
Description
1.1.1
Description (Standard Configuration)
The 1:1 switch is a fully automated protection switch for Comtech EFData satellite
modems, providing redundancy for one prime modem using one identical backup
modem. Common interfaces are provided for user data terminal equipment and
uplink/downlink RF equipment, as well as the primary and redundant (backup) modems.
The integrated uplink 1:1 switch and downlink splitter operate at IF frequencies in the
range of 50 to 180 MHz.
Full Monitor and Control (M&C) functions are supported by an integrated
microprocessor system. The M&C system is designated to maintain the 1:1 switch
configuration settings in non-volatile memory for at least one year without prime power.
Note: While 1:1 switch prime power is not applied, the default connections are to
Modem A.
Remote control is provided by an EIA-485 or EIA-232 interface located on the rear panel
of the chassis. The rear panel also is the location for all external interconnections. The
1:1 switch is enclosed in a single unit, 19-inch (48.3 cm) rack-mounted chassis. Figure 1-2
illustrates the system block diagram.
T R A N SM IT IF
MODEM A
R E C E IV E IF
B A S EB A N D D ATA
T X/R X
J2
J5
J9
1 FO R 1 SW ITCH
J1 3
M O D E M R EM O T E
S P LIT TE R
J1
B A S EB A N D D ATA
TO /F R O M C U S TO M E R
J8
R E C E IV E IF
50 TO 18 0 M H z F R O M
D O W N C O N V E RTE R
J4
T R A N SM IT IF
50 TO 18 0 M H z
TO U P C O N VE RT E R
E IA -4 85
S W IT C H M &C LO G IC
J1 4
S TATU S /FA U LTS
R E M O TE
CONTROL
J1 0
E IA -2 32 O R
EIA-48 5
J3
J6
J7
T R A N SM IT IF
MODEM A
R E C E IV E IF
B A S EB A N D D ATA
T X/R X
H O T T E R M IN A L
OR COMPUTER
Figure 1-2. System Block Diagram (Standard Configuration)
1–2
Rev. 3
SMS-301 Redundancy Switch
1.1.2
Introduction
Description (With RS-301 Option)
The 1:1 switch, when used with the RS-301 Remote Switch, is a fully-automated
protection switch designed for use with the Comtech EFData SDM-300/-300A Satellite
Modem that are equipped with the 8-Channel MUX option. It provides redundancy for
the one prime modem using identical backup satellite modem. The 1:1 switch provides
common interfaces for the RF uplink and downlink equipment. The integrated uplink 1:1
switch and downlink splitter operate at IF frequencies in the range of 50 to 180 MHz.
The RS-301 Remote Switch is a separate 19-inch (48.3 cm) rack-mounted chassis. It is
controlled by the 1:1 switch, and provides redundancy for the data interface between the
primary modem, backup modem, and customer equipment. The front panel provides
convenient access to eight tributary data channels (EIA-232 and EIA-422 clock and data)
and one auxiliary data channel. Figure 1-3 illustrates the system block diagram.
Note: The default connections are to Modem A.
S D M -300 / 300A
T R A N S M IT IF
M OD EM A
R E C E IV E IF
M O D E M A D ATA (8 T R IB & A U X )
B A S E B A N D D ATA
T X /R X
J5
N O T E : J7, J8 , A N D J9
A R E N O T U SE D .
J9
J1 4
1 FO R 1 S W IT C H
S P L IT T E R
J1 3
J1 4
M ODEM REM OTE
E IA -4 8 5
J1 T R IB 1 D ATA
J8
J2 T R IB 2 D ATA
S W IT C H
M&C
L O G IC
CO NTROL
BUS
E XTEN D E R
CARD
S TAT U S FA U LT S
S W IT C H
CO NTROL
J3 T R IB 3 D ATA
J1 6
J4 T R IB 4 D ATA
J5 T R IB 5 D ATA
REM OTE
CO NTROL
J1 0
J1
J4
J6
T R A N S M IT IF
5 0 T O 1 8 0 M H z TO
U P C O N V E R TE R
J6 T R IB 6 D ATA
J7 T R IB 7 D ATA
J8 T R IB 8 D ATA
J7
E IA -2 3 2 O R E IA -4 8 5
J9 A U X D ATA
S D M -300 / 300A
M OD EM B
T R A N S M IT IF
H O S T T E R M IN A L
OR COM PUTER
R E C E IV E IF
B A S E B A N D D ATA
T X /R X
M O D E M B D ATA (8 T R IB & 1 A U X )
R S -3 01
REMOTE
S W IT C H
J1 5
Figure 1-3. System Block Diagram (With RS-301 Option)
Rev. 3
1–3
Introduction
1.1.3
SMS-301 Redundancy Switch
Board List
The following boards, listed in Table 1-1, can be installed in the SMS-301, depending on
the configuration.
Table 1-1. Board List
Board Type
M&C, 75Ω
M&C, 50Ω
IBS, IDR, ASYNC, D&I,
50-pin Data, I/O (J1, J2, J3)
EIA-422/-449, G.703, V.35,
37-pin Data I/O (J1, J2, J3)
LVDS-DVB TX, 37-pin Interface
EIA-422/DVB TX, 37-pin Interface
EIA-232/-422/-530, V.35, G.703
25-pin Data, I/O (J1, J2, J3)
100-Pin Interface (RS-301 only)
1–4
Drawing #
PL/5950-1
PL/5950-2
PL/5951
PL/5952
PL/6201-1
PL/6201-2
PL/6026
PL/6592
PL/6627
Rev. 3
SMS-301 Redundancy Switch
1.2
Introduction
Front Panel
The front panel of the chassis is a local user interface used for control and status
monitoring of the switching system. This local user interface consists of the following:
•
•
•
Keypad
Backlit LED display
LED status indicators (Table 1-2)
Table 1-2. LED Status Indictors
Function
Demodulator A On-Line
Demodulator B On-Line
Modulator A On-Line
Modulator B On-Line
Transmit Fault
Receive Fault
System Fault
Stored Fault
Power Supply 1
Power Supply 2
Auto Mode
Manual Mode
Rev. 3
Color
Green
Green
Green
Green
Red
Red
Red
Yellow
Green
Green
Green
Yellow
1–5
Introduction
1.3
SMS-301 Redundancy Switch
Specifications
Refer to Table 1-3 for the 1:1 switch specifications.
Table 1-3. 1:1 Switch Specifications
Data Interface Switch:
Modem A, I/O
Modem B, I/O
Common, I/O
Control Bus Extender Card
IF Uplink Switch:
IF Downlink Splitter:
Local User Interface
Front Panel Status LEDs
Connector type:
25-pin D-sub,
37-pin D-sub
50-pin D-sub
100-pin D-sub
Connector Type: 37-pin D-sub (Remote Switch)
Connector type:
BNC
Impedance:
75Ω (50Ω optional)
Return loss:
≥ 18 dB
Switched input to output loss: < 1.5 dB
Frequency response: 50 to 180 MHz
IF input to input isolation: > 60 dB
Connector type:
BNC
Impedance:
75Ω (50Ω optional)
Return loss:
≥ 18 dB
Splitter loss, input to outputs: < 4.0 dB
Output balance: ± 0.5 dB
Frequency response: 50 to 180 MHz
Front Panel:
Keypad: 6 button (enter, clear, left, right, up, down arrows)
•
Display: backlit LCD, 2 lines by 16 characters
•
Operational mode:
• Manual (Yellow)
• Automatic (Green)
Switch faults:
• TX (Red)
• RX (Red)
• System (Red)
• Stored (Yellow)
On-line/Fault Status
Modulator On-line
Demodulator On-line
Switch Fault
Controller Fault
Spare
Remote Control
1–6
On-line Status:
• Modulator A (Green)
• Modulator B (Green)
• Demodulator A (Green)
• Demodulator B (Green)
Rear panel, 15-pin D-sub female
Form C relay
Form C relay
Form C relay
Form C relay
Form C relay
Interface type:
EIA-485/EIA-232 (local selectable)
Connector:
9-pin D-sub
Protocol:
Addressable (see remote control protocol)
Rev. 3
SMS-301 Redundancy Switch
Introduction
Table 1-3. 1:1 Switch Specifications (Continued)
Parameters
Controlled/Monitored
Configuration Retention
Switch to Modem
Communications
Prime Power
Size
Weight
Operating Temperature
Humidity
EMI
Rev. 3
Operation mode: Automatic or manual
Switching mode: Independent or dependent mod/demod
Modulator on-line delay
Demodulator on-line delay
Modem on-line:
A or B (dependent mode)
Modulator on-line: A or B (independent mode)
Demodulator on-line: A or B (independent mode)
Remote configuration (local only): EIA-232 or EIA-485, address, baud,
parity, bits per word
Remote mode (Switch)
Clear stored faults
Current faults
Stored faults
Switch status
Firmware
Time/date
Equipment type
Store/recall multiple switch configurations
Remote access to modulator/demodulator status
Modem configuration copy to opposite modem
Will maintain configuration for at least one year without prime power
Interface type:
EIA-485 (2-wire)
Connector:
9-pin D-sub
Protocol:
Addressable (see remote control protocol, Appendix A)
85 to 264 VAC, 47 to 63 Hz, 30W (redundant inputs)
(Optional) 42 to 56 VDC, 40W (redundant inputs)
19 W x 15.2 D x 1.75 H inches (1 RU)
(48.3 x 39 x 4.4 cm)
< 9 lbs (4 kg)
0° to 50° C (32° to 122° F)
< 95%, non-condensing
CE Mark Certification
1–7
Introduction
SMS-301 Redundancy Switch
This page is intentionally left blank.
1–8
Rev. 3
2
Chapter 2.
INSTALLATION
This chapter provides installation information for the 1:1 switch, including unpacking,
inspecting the parts, and external connections.
2.1
Unpacking
The 1:1 switch and manual are packaged in pre-formed, reusable cardboard cartons
containing foam spacing for maximum shipping protection. To remove the 1:1 switch,
proceed as follows:
Do not use any cutting tool that will extend greater than 1-inch into the
container and cause damage to the 1:1 switch.
CAU TIO N
1. Cut the tape at the top of the carton where it is indicated OPEN THIS END.
2. Lift out the cardboard/foam spacer covering the 1:1 switch.
3. Remove the 1:1 switch, manual, and power cords from the carton.
4. Save the packing material for reshipment either back to the factory or to another
location.
5. Inspect the equipment for any possible damage incurred during shipment.
6. Check the equipment against the packing list to ensure that the shipment is
complete.
7. Refer to Section 2.2 for further system installation instructions.
Rev. 3
2–1
Installation
2.2
SMS-301 Redundancy Switch
System Installation
System installation instructions are dependent on whether or not the 1:1 switch is used
with the RS-301 Remote Switch option.
•
For all switch configurations where the Data I/O is switched internally to the
1:1 switch, refer to Appendix B for standard configuration installation. This
configuration is used with the SDM-300/-300A Satellite Modems with 25-pin,
34-pin, 37-pin, and 50-pin Data I/O interfaces.
•
When the RS-301 Remote Switch option is used and the Data I/O is s witched in
a separate unit, refer to Appendix B for installation with RS –301 switch
installed. This configuration is used with the SDM-300/-300A Satellite Modem
with a
100-pin Data I/O (8-channel Mux).
Note: Refer to Appendix C for SDM-2020 cabling instructions to the switch.
2–2
Rev. 3
SMS-301 Redundancy Switch
2.3
Installation
External Connections
Connections between the 1:1 switch and other equipment are performed through the rear
panel connectors. These connectors vary depending on whether the Remote Switch (RS301) is used.
•
Refer to Table 2-1 for the connector list when the Data I/O is switched internal
to the 1:1 switch.
•
When the 1:1 switch is used with the Remote Switch (RS-301) option, refer to
Table 2-2.
DE MOD
J1 REM O TE SW IT CH CON TROL
J9
A
MOD
J8
RX IF
J7
B
J4
TX IF
J5
A
J6
B
!
100 TO 240 V
1.5 A 50 TO 60 Hz
AC2
J12
T2A , 250V
AC 1
J11
J14
J10
RE MOTE
CON TRO L
STAT US/FAULT S
MOD EM
COM
J13
Rear Panel (Standard Configuration)
TRIB 1 DATA
TRIB 2 DATA
TRIB 3 DATA
TRIB 4 DATA
TRIB 5 DATA
TRIB 6 DATA
TRIB 7 DATA
TRIB 8 DATA
AUX
J1
J2
J3
J4
J5
J6
J7
J8
J9
R S-301
Rear Panel (With RS-301 Option)
Figure 2-1. SMS-301 Rear Panel Configurations
Rev. 3
2–3
Installation
SMS-301 Redundancy Switch
Table 2-1. Rear Panel Connectors (Standard Configuration)
Name
DATA COM
DATA A
DATA B
TX IF COM
TX IF A
TX IF B
RX IF B
RX IF COM
RX IF A
REMOTE CONTROL
AC POWER
SW/MODEM COMM
STATUS/FAULTS
GND
Ref Des
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11/J12
J13
J14
GND
Connector Type
50/37/25-pin D
50/37/25-pin D
50/37/25-pin D
BNC
BNC
BNC
BNC
BNC
BNC
9-pin D
IEC
9-pin D
15-pin D
#10-32 stud
Function
Common Data Interface
Modem A Data Interface
Modem B Data Interface
Common TX IF Output
Modem A TX IF Input
Modem B TX IF Input
Modem B RX IF Output
Common RX IF Input
Modem A RX IF Output
Remote Command Interface
AC Power Input
Modem A/B Remote
Switch Status (Form C relay)
Ground
Table 2-2. Rear Panel Connectors (With RS-301 Option)
Name
REMOTE SWITCH
CONTROL
TX IF COM
TX IF A
TX IF B
RX IF B
RX IF COM
RX IF A
REMOTE CONTROL
AC POWER
DC POWER (Optional)
SW/MODEM COMM
STATUS/FAULTS
GND
Ref Des
J1
Connector Type
37-pin D
J4
J5
J6
J7
J8
J9
J10
J11/J12
J11/J12
J13
J14
GND
BNC
BNC
BNC
BNC
BNC
BNC
9-pin D
IEC
Terminal Block
9-pin D
15-pin D
#10-32 stud
Function
RS-301 Control Signals, Power,
and Ground
Common TX IF Output
Modem A TX IF Input
Modem B TX IF Input
Modem B RX IF Output
Common RX IF Input
Modem A RX IF Output
Remote Command Interface
AC Power Input
DC Power Input
Modem A/B Remote
Switch Status (form C relay)
Ground
Note: The use of each connector is described in the following paragraphs.
2–4
Rev. 3
SMS-301 Redundancy Switch
2.3.1
Installation
Remote Switch Control (J1) (RS-301 Option)
For applications using the Remote Switch (RS-301) option, the connector type is a
37-pin D subminiature. Refer to Table 2-3 for the 37-pin connector pin assignments.
Table 2-3. Switch Control Interface Signals
Pin No.
1
20
2
21
3
22
4
23
5
24
6
25
7
26
8
27
9
28
10
29
11
30
12
31
13
32
14
33
15
34
16
35
17
36
18
37
19
Rev. 3
Name
SCL
SDA
Spare 11
Spare 10
Spare 9
Spare 8
Spare 7
Spare 6
Spare 5
Spare 4
Spare 3
Spare 2
Spare 1
DMDONL
MODONL
/B_DF
/A_DF
/B_MF
/A_MF
ID_5
ID_4
ID_3
ID_2
ID_1
GND
GND
GND
GND
GND
-12V
-12V
+12V
+12V
+5V
+5V
+5V
+5V
Function
Serial Clock
Serial Data
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
Demod Online
Mod Online
Modem B Demod Fault
Modem A Demod Fault
Modem B Mod Fault
Modem A Mod Fault
Interface Board ID
Interface Board ID
Interface Board ID
Interface Board ID
Interface Board ID
Ground
Ground
Ground
Ground
Ground
-12VDC
-12VDC
+12VDC
+12VDC
+5VDC
+5VDC
+5VDC
+5VDC
2–5
Installation
2.3.2
SMS-301 Redundancy Switch
Data I/O Connections
The 1:1 switch data interface is dependent upon the installed switchboard. These are
described in the following sections.
2.3.2.1
Data I/O Connector (J1, J2, J3), 50-Pin (PL/5951)
Note: For ASYNC, IBS, IDR, and D&I applications.
In order to maintain compatibility with various Comtech EFData breakout panels, the 50pin D subminiature connector has the assignments shown in Table 2-4, depending upon the
current operating mode.
Table 2-4. Data I/O Connector, 50-Pin
50-Pin D Connector
Pin #
34
18
36
20
35
19
37
38
21
22
4
5
39
40
23
24
6
7
45
29
44
12
13
14
15
17
16
50
3
49
33
1, 2
2–6
IDR
G.703 SDA In
G.703 SDB In
G.703 RDA Out
G.703 RDB Out
EIA-422 ExtClkA In
EIA-422 ExtClkB In
EIA-422 8k TXDA In
EIA-422 8k TXDB In
EIA-422 8k TClkA Out
EIA-422 8k TClkB Out
EIA-422 TXOctA In
EIA-422 TXOctB In
EIA-422 8k RXDA Out
EIA-422 8k RXDB Out
EIA-422 8k RClkA Out
EIA-422 8k RClkB Out
EIA-422 RXOctA Out
EIA-422 RXOctB Out
Aud1-A In (or 64SDA)
Aud1-B In (or 64SDB)
BWO4_NO
BWAI 1
BWAI 2
BWAI 3
BWAI 4
Def Maint Alrm
Demod Fault C
Demod Fault NO
AGC Out
MF (Open Collector)
DF (Open Collector)
Ground
IBS
G.703 SDA In
G.703 SDB In
G.703 RDA Out
G.703 RDB Out
V.35/EIA-422 EXCA In
V.35/EIA-422 EXCB In
V.35/EIA-422 SD-A In
V.35/EIA-422 SD-B In
V.35/EIA-422 ST-A Out
V.35/EIA-422 ST-B Out
ESC TXDA In (EIA-232 only)
V.35/EIA-422 RD-A Out
V.35/EIA-422 RD-B Out
V.35/EIA-422 RT-A Out
V.35/EIA-422 RT-B Out
ESC RXDA Out (EIA-232 only)
V.35/EIA-422 RTS-A
V.35/EIA-422 RTS-B
SECONDARY_NO
V.35/EIA-422 SCTE/TT A
V.35/EIA-422 SCTE/TT B
EIA-422 TX Oct A
EIA-422 TX Oct B
AGC Out
MF (Open Collector)
DF (Open Collector)
Async
G.703 SDA In
G.703 SDB In
G.703 RDA Out
G.703 RDB Out
V.35/EIA-422 EXCA In
V.35/EIA-422 EXCB In
V.35/EIA-422 SD-A In
V.35/EIA-422 SD-B In
V.35/EIA-422 ST-A Out
V.35/EIA-422 ST-B Out
ESC TXDB In (EIA-485 only)
ESC TXDA In (EIA-485 & 232)
V.35/EIA-422 RD-A Out
V.35/EIA-422 RD-B Out
V.35/EIA-422 RT-A Out
V.35/EIA-422 RT-B Out
ESC RXDB Out (EIA-485 only)
ESC RXDA Out (EIA-485 & 232)
V.35/EIA-422 RTS-A
V.35/EIA-422 RTS-B
D&I
G.703 SDA In
G.703 SDB In
G.703 RDA Out
G.703 RDB Out
EIA-422 EXCA In
EIA-422 EXCB In
G.703 DDO-A Out
G.703 DDO-B Out
ESC TXD In (EIA-232 only)
G.703 IDI-A In
G.703 IDI-B In
G.703 IDI-B In
ESC RXD Out (EIA-232)
SECONDARY_NO
V.35/EIA-422 SCTE/TT A
V.35/EIA-422 SCTE/TT B
AGC Out
MF (Open Collector)
DF (Open Collector)
AGC Out
MF (Open Collector)
DF (Open Collector)
Rev. 3
SMS-301 Redundancy Switch
2.3.2.2
Installation
Data I/O Connector (J1, J2, J3), 37-Pin (PL/5952)
Note: For EIA-422/-449, V.35, and G.703 applications.
The 37-pin D subminiature connector pin assignments are shown in Table 2-5.
Table 2-5. Data I/O Connectors, 37-Pin
Pin #
1
3
4
22
5
23
6
24
7
25
8
26
9
27
11
29
13
31
17
35
16
34
19
20
21
37
EIA-422/-449
SG
MF
SD-A
SD-B
ST-A
ST-B
RD-A
RD-B
RS-A
RS-B
RT-A
RT-B
CS-A
CS-B
DM-A
DM-B
RR-A
RR-B
TT-A
TT-B
MC-A
MC-B
SG
SG
DF
SG
V.35
SG
MF
SD-A
SD-B
ST-A
ST-B
RD-A
RD-B
RS-A
RS-B
RT-A
RT-B
CS-A
CS-B
DM-A
DM-B
RR-A
RR-B
TT-A
TT-B
MC-A
MC-B
SG
SG
DF
SG
G.703
SG
MF
SD-A
SD-B
Signal Function
Signal Ground
MOD Fault
Send Data
Send Timing
RD-A
RD-B
Receive Data
Request to Send
Receiver Timing
Clear to Send
Data Mode
Receiver Ready
Terminal Timing
MC-A
MC-B
SG
SG
DF
SG
Master Clock
(Input)
Signal Ground
Signal Ground
DEMOD Fault
Signal Ground
The following shows the jumper configurations for EIA-422/449, V.35, and G.703.
EIA-422/449/V.35
JP2
JP3
JP4
JP5
Rev. 3
G.703
JP1
JP6
JP7
JP6
JP9
2–7
Installation
2.3.2.3
SMS-301 Redundancy Switch
Data I/O Connector (J1, J2, J3), 25-Pin (PL/6026)
Note: For EIA-422/-530, EIA-232, V.35, or G.703 applications,
The 25-pin D subminiature connector has the pin assignments shown in Table 2-6.
Table 2-6. Connector Assignments, 25-Pin
Pin #
3
16
2
14
24
11
15
12
17
9
4
19
5
13
8
10
6
22
20
23
18
21
25
7
1
EIA-422/-530
RD-A
RD+B
SD-A
SD+B
TT-A
TT+B
ST-A
ST+B
RT-A
RT-B
RS-A
RS+B
CS-A
CS+B
RR-A
RR+B
DM-A
DM+B
MC-A
MC+B
LL
DF
MF
SIGGND
SHLD
EIA-232
RXD
RTS
V.35
RD-A
RD+B
SD-A
SD+B
SCTE--A
SCTE+B
SCT-A
SCT+B
SCR-A
SCR-B
RTS
CTS
CTS
Clear to Send
DCD
RLSD
Receiver Ready
DSR
DSR
Data Mode
MC
MC-A
MC+B
LL
DF
MF
SIGGND
SHLD
TXD
TXC
ST
RXC
LL
DF
MF
SIGGND
SHLD
G.703
RD-A
RD+B
SD-A
SD+B
Signal Function
Receive Data
Send Data
Terminal Timing
Send Timing
Receiver Timing
Request to Send
MC-A
MC+B
Master Clock (input)
DF
MF
SIGGND
SHLD
Demod Fault
Mod Fault
Signal Ground
The following shows the jumper configurations for EIA-422/530.
EIA-422/-530
J6
J7
J8
J9
J14
J15
J17
J18
J20
J21
J22
J26
2–8
V.35
J6
J7
J8
J9
J14
J15
J16
J18
J20
J21
J22
J26
EIA-232
J19
J23
J24
J25
J27
J28
J29
J30
J17
G.703
J5
J10
J11
J12
J13
J14
J18
J20
J21
J22
J26
Rev. 3
SMS-301 Redundancy Switch
2.3.2.4
Installation
Data I/O (J1, J2, J3) 37-Pin (PL/6201-1)
Note: For EIA-422/LVDS DVB (Serial or Parallel) Interface applications.
The 37–pin D subminiature connector has the pin assignments shown in Table 2-7.
Table 2-7. Connector Assignments, 37-Pin
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Rev. 3
Signal Function/Name
Signal GND
REF CLK/GND B
MF
NC
NC
D0B
D1 B
D2 B
D3 B
D4 B
D5 B
D6 B
D7 B
Valid B
SYNC B
NC
NC
NC
CLK A
NC
REF CLK/GND A
DF
NC
NC
D0 A
D1 A
D2 A
D3 A
D4 A
D5 A
D6 A
D7 A
Valid A
SYNC A
NC
NC
CLK B
Comment
Mod/Demod
REF CLK
Mod Fault
No Connection
No Connection
Data
Data
Data
Data
Data
Data
Data
Data
Valid
SYNC
No Connection
No Connection
No Connection
Clock
No Connection
REF CLK
Demod Fault
No Connection
No Connection
Data
Data
Data
Data
Data
Data
Data
Data
Valid
SYNC
No Connection
No Connection
Clock
2–9
Installation
2.3.2.5
SMS-301 Redundancy Switch
Data I/O Connector (J1, J2, J3) 37-Pin (PL/6201-2)
Note: For EIA-422 Serial Interface applications.
The 37–pin D subminiature connector has the pin assignments shown in Table 2-8.
Table 2-8. Connector Assignments, 37-Pin
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
2–10
Signal Function/Name
Signal GND
Send Timing (ST-B)
Modulator Fault (MF)
NC
NC
NC
NC
NC
Clear To Send (CS-A)
NC
NC
NC
Send Data (SD-B)
Request To Send (RS-B)
NC
NC
NC
NC
Terminal Timing (TTA)
NC
Send Timing (TT-A)
NC
NC
NC
NC
NC
Clear To Send (CS-B)
NC
NC
NC
NC
Send Data (SD-A)
Request To Send (RS-A)
NC
NC
NC
Terminal Timing (TT-B)
Comment
Mod/Demod
Modulator
Modulator
NC
NC
NC
NC
NC
Modulator
NC
NC
NC
Modulator
Modulator
NC
NC
NC
NC
Modulator
NC
Modulator
NC
NC
NC
NC
NC
Modulator
NC
NC
NC
NC
Modulator
Modulator
NC
NC
NC
Modulator
Rev. 3
SMS-301 Redundancy Switch
2.3.2.6
Installation
100 Pin interface (RS-301 Option) (PL/6542/PL/6627)
The 100-pin connector pin assignments is shown in Table 2-9.
Table 2-9. Data I/O Connector, 100-Pin
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Circuit
–
–
–
–
GND
GND
DF
MF
GND
RT+B
RT–A
GND
RD+B
RD–A
GND
RR+B
RR–A
GND
MCB
MCA
GND
TC232 8
TD232 8
CTS232 8
TD422B 8
TD422A 8
TC422B 8
TC422A 8
CTS422B8
CTS422A8
GND
TC232 7
TD232 7
CTS232 7
TD422B 7
TD422A 7
TC422B 7
TC422A 7
CTS422B7
CTS422A7
GND
TC232 6
TD232 6
CTS232 6
TD422B 6
TD422A 6
TC422B 6
TC422A 6
CTS422B6
CTS422A6
Rev. 3
MUX Data 100-Pin Rear Panel Connector
Description
Pin #
Circuit
N/A
51
GND
N/A
52
TC232 5
N/A
53
TD232 5
N/A
54
CTS232 5
GROUND
55
TD422B 5
GROUND
56
TD422A 5
DEMOD FAULT
57
TC422B 5
MOD FAULT
58
TC422A 5
GROUND
59
CTS422B 5
RECEIVE TIMING B (+)
60
CTS422A 5
RECEIVE TIMING A (–)
61
GND
GROUND
62
TC232 4
RECEIVE DATA B (+)
63
TD232 4
RECEIVE DATA A (–)
64
CTS232 4
GROUND
65
TD422B 4
RECEIVER READY B (+)
66
TD422A 4
RECEIVER READY A (–)
67
TC422B 4
GROUND
68
TC422A 4
MASTER CLOCK B (+)
69
CTS422B4
MASTER CLOCK A (–)
70
CTS422A4
GROUND
71
GND
EIA-232, TX CLK , TRIB8
72
TC232 3
EIA-232, TX DAT, TRIB8
73
TD232 3
EIA-232, CTS, TRIB8
74
CTS232 3
EIA-422, TX DATB (+), TRIB8
75
TD422B 3
EIA-422, TX DATA (–), TRIB8
76
TD422A 3
EIA-422, TX CLKB (+), TRIB8
77
TC422B 3
EIA-422, TX CLKA (–), TRIB8
78
TC422A 3
EIA-422, CTSB (+), TRIB8
79
CTS422A3
EIA-422, CTSA (–), TRIB8
80
CTS422A3
GROUND
81
GND
EIA-232, TX CLK , TRIB7
82
TC232 2
EIA-232, TX DAT, TRIB7
83
TD232 2
EIA-232, CTS, TRIB7
84
CTS232 2
EIA-422, TX DATB (+), TRIB7
85
TD422B 2
EIA-422, TX DATA (–), TRIB7
86
TD422A 2
EIA-422, TX CLKB (+), TRIB7
87
TC422B 2
EIA-422, TX CLKA (–), TRIB7
88
TC422A 2
EIA-422, CTSB (+), TRIB7
89
CTS422B2
EIA-422, CTSA (–), TRIB7
90
CTS422A2
GROUND
91
GND
EIA-232, TX CLK , TRIB6
92
TC232 1
EIA-232, TX DAT, TRIB6
93
TD232 1
EIA-232, CTS, TRIB6
94
CTS232 1
EIA-422, TX DATB (+), TRIB6
95
TD422B 1
EIA-422, TX DATA (–), TRIB6
96
TD422A 1
EIA-422, TX CLKB (+), TRIB6
97
TC422B 1
EIA-422, TX CLKA (–), TRIB6
98
TC422A 1
EIA-422, CTSB (+), TRIB6
99
CTS422B1
EIA-422, CTSA (–), TRIB6
100
CTS422A1
Description
GROUND
EIA-232, TX CLK , TRIB5
EIA-232, TX DAT, TRIB5
EIA-232, CTS, TRIB5
EIA-422, TX DATB (+), TRIB5
EIA-422, TX DATA (–), TRIB5
EIA-422, TX CLKB (+), TRIB5
EIA-422, TX CLKA (–), TRIB5
EIA-422, CTSB (+), TRIB5
EIA-422, CTSA (–), TRIB5
GROUND
EIA-232, TX CLK , TRIB4
EIA-232, TX DAT, TRIB4
EIA-232, CTS, TRIB4
EIA-422, TX DATB (+), TRIB4
EIA-422, TX DATA (–), TRIB4
EIA-422, TX CLKB (+), TRIB4
EIA-422, TX CLKA (–), TRIB4
EIA-422, CTSB (+), TRIB4
EIA-422, CTSA (–), TRIB4
GROUND
EIA-232, TX CLK , TRIB3
EIA-232, TX DAT, TRIB3
EIA-232, CTS, TRIB3
EIA-422, TX DATB (+), TRIB3
EIA-422, TX DATA (–), TRIB3
EIA-422, TX CLKB (+), TRIB3
EIA-422, TX CLKA (–), TRIB3
EIA-422, CTSB (+), TRIB3
EIA-422, CTSA (–), TRIB3
GROUND
EIA-232, TX CLK , TRIB2
EIA-232, TX DAT, TRIB2
EIA-232, CTS, TRIB2
EIA-422, TX DATB (+), TRIB2
EIA-422, TX DATA (–), TRIB2
EIA-422, TX CLKB (+), TRIB2
EIA-422, TX CLKA (–), TRIB2
EIA-422, CTSB (+), TRIB2
EIA-422, CTSA (–), TRIB2
GROUND
EIA-232, TX CLK , TRIB1
EIA-232, TX DAT, TRIB1
EIA-232, CTS, TRIB1
EIA-422, TX DATB (+), TRIB1
EIA-422, TX DATA (–), TRIB1
EIA-422, TX CLKB (+), TRIB1
EIA-422, TX CLKA (–), TRIB1
EIA-422, CTSB (+), TRIB1
EIA-422, CTSA (–), TRIB1
2–11
Installation
2.3.3
SMS-301 Redundancy Switch
Transmit IF Connectors (J4, J5, J6)
The transmit IF switch connectors are as follows:
2.3.4
•
The TX IF output of the prime modem connects to TX IF A.
•
The TX IF output of the backup modem connects to TX IF B.
•
TX IF COMM is the transmit IF output connector and connects to the uplink IF
equipment. The TX IF output of the on-line modem will be available at
this connector.
•
The characteristic impedance of these BNC connectors is 75Ω (50Ω optional).
•
If the backup or prime modem is disconnected for any reason, place a 75Ω (50Ω
optional) termination on the unused connector for a 75Ω (50Ω optional) system,
respectively.
RX IF Connectors (J7, J8, J9)
The Receive IF splitter connectors are as follows:
2–12
•
The RX IF of the prime modem connects to RX IF A and the RX IF of the
backup modem connects to RX IF B.
•
RX IF COM connects to customer-furnished equipment.
•
The characteristic impedance of these BNC connectors is 75Ω (50Ω optional).
•
There will be less than 4 dB loss between the common input and the A or B
output connectors.
•
If the backup or prime modem is disconnected for any reason, place a 75Ω
(50Ω optional) termination on the unused connector for a 75Ω (50Ω optional)
system, respectively.
Rev. 3
SMS-301 Redundancy Switch
2.3.5
Installation
Remote Control Interface Connector (J10)
The remote control interface (J10) connector is described in the following listings.
Pinout data is included in Table 2-10.
Connector type
Signal type
9-pin D subminiature, female
EIA-232 or EIA-485, user-selectable
Interface connector type:
•
•
•
•
•
EIA-485 (2-wire or 4-wire)
EIA-232 (Optional)
Baud rate range 150 to 19.2 kbit/s
ASCII characters
11 bits per character (maximum):
♦ 1 start bit
♦ 7 information bits, 1 parity bit (odd/even) or
8 information bits, 0 parity bit, 1 stop bit
♦ 2 stop bits
Table 2-10. Remote Control Interface Connector Pinout Data (J10)
EIA-485
4-Wire
Pin #
Name
1
GND
2
3
4
+TX
5
-TX
6
7
8
+RX
9
-RX
EIA-232
2-Wire
Name
+TX/+RX
-TX/-RX
+RX/+TX
-RX/-TX
Pin #
1
2
3
4
5
6
7
8
9
Name
RD(RX)
TD (TX)
GND
DSR
RTS
CTS
Notes: (For EIA-485 4-wire operation)
1. Pins 4 and 8 may be tied together.
2. Pins 5 and 9 may be tied together.
Rev. 3
2–13
Installation
SMS-301 Redundancy Switch
2.3.6
Prime Power
2.3.6.1
AC Power (J11 and J12)
Refer to Table 2-11 for AC prime power requirements.
Table 2-11. AC Power (J11 and J12)
Description
AC power is supplied independently to each
of the two power supplies by two standard
detachable, non-locking, 3-prong power
cords.
Maximum Power consumption
Input Range
Changing Input Voltage
2.3.6.2
Requirements
85 to 264 VAC
30W
85 to 264 VAC
No reconfiguration is required.
DC Power (J11 and J12) (Optional)
Refer to Table 2-12 for DC prime power requirements.
Table 2-12. DC Prime Power (J11 and J12)
Description
Input Range
Maximum Power Consumption
2–14
Requirements
42 to 56 VDC
40W
Rev. 3
SMS-301 Redundancy Switch
2.3.7
Installation
Switch/Modem Communications Interface Connector (J13)
The switch/modem communications interface (J13) connector is described in the
following listings and pinout data is included in Table 2-13.
Interface type:
•
•
•
•
EIA-485 (2-wire)
Baud rate range 9.6 or 19.2 kbit/s
ASCII characters
11 bits per character:
! 7 information bits
! 2 stop bits
! 1 parity (Even)
! 1 start bit
Table 2-13. Switch/Modem Communications
Interface Connector (J13)
Pinout
Pin #
1
2
3
4
5
6
7
8
9
Rev. 3
Name (2-Wire)
GND
+TX, +RX
-TX, -RX
+RX, +TX
-RX, -TX
2–15
Installation
2.3.8
SMS-301 Redundancy Switch
Status/Fault (J14)
Refer to Table 2-14 for Status/Faults (J14) pinout assignments.
Connector-Type:
15-Pin D Subminiature, female Form C contact
Rating 2A maximum @ 30 VDC, 0.6A @ 125 VAC
Table 2-14. Status/Faults (J14) Pinout Assignments
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2.3.9
Pinout
Name
Function
Spare COM
Spare NO
Spare NC
CEQ COM
CEQ NO
Common Equipment OK
CEQ NC
Common Equipment Faulted
MODONL COM
MODONL NO
Mod B On-line Status
MODONL NC
Mod A On-line Status
SW COM
SW NO
Switch OK
SW NC
Switch Faulted
DMDONL COM
DMDONL NO
Demod B On-line Status
DMDONL NC
Demod A On-line Status
IF Connections: Transmit and Receive
The data is provided in the following listing:
Connector type
Return loss
2.3.10
BNC 75Ω (50Ω Optional)
≥ 18 dB from 50 to 180 MHz
Ground
A #10-32 stud is provided on the rear of the chassis for connecting a common chassis
ground between all of the equipment.
2–16
Rev. 3
3
Chapter 3.
OPERATION
This chapter defines the controls and procedures for configuration and operation of the
1:1 switch.
Note: Familiarization with the front panel controls (Figure 3-1) and/or the related remote
commands described in Appendix A is recommended by Comtech EFData.
3.1
Configuration
The configuration of the 1:1 switch may be performed from the front panel, or from a
terminal or personal computer connected to the 1:1 switch remote port (J10). Each front
panel menu screen, from which entries can be made or status displayed, has a
corresponding remote command(s). Unlike the remote commands, the front panel display
menus are designed to sequentially guide the operator through the configuration process.
Note: Refer to the menu tables presented in this chapter for specific configuration
information.
Upon completion of the 1:1 switch installation, as described in Chapter 2, the prime
modem attached to the 1:1 switch shall be programmed prior to the initial configuration
of the switch.
Figure 3-1. SMS-301 Front Panel View
Rev. 3
3-1
Operation
3.2
SMS-301 Redundancy Switch
Setup and Configuration
Table 3-1 details the default configuration parameters of the 1:1 switch. The 1:1 switch
is returned to this default configuration by performing a hard reset, or upon
failure/corruption of non-volatile memory.
Table 3-1. Default Configuration Parameters
Parameter
Operation Mode
On-line Modem
On-line Mod
On-line Demod
Switch Mode
Modem Delay
Mod Delay
Demod Delay
Modulators
Demodulators
Time
Date
Remote Baud Rate
Remote Address
Remote Type
Display Contrast
Automatic Verify
Modem A Address
Modem B Address
Modem Baud Rate
Condition
Automatic
A
A
A
Independent
0.0
0.0
0.0
Active
Active
12:00:00 AM
7/04/76
9600 bit/s Even
10
EIA-485 (2-wire)
Level 64
Disable
1
2
9600 bit/s
The following sections detail the minimum modifications necessary to set up a typical
1:1 redundant configuration. In the following setup descriptions, it is assumed Modem A
connections are to the prime modem. While proper switch operation does not require
Modem A to be the prime modem, it should be noted that upon loss of prime power to
the 1:1 switch, Modem A is the default signal pass through path.
3-2
Rev. 3
SMS-301 Redundancy Switch
3.2.1
Operation
Utility System
Prior to configuration, it may be necessary to modify the following:
Display Contrast
Remote Options
Modem Control Baud Rate
3.2.2
Adjust for optimum viewing in local ambient lighting
conditions.
If a remote is to be used, appropriate remote options can be
verified or defined from the Utilities menu.
Select the highest common baud rate for the modems
attached to the 1:1 switch.
Configuration
Upon completion of the installation, the 1:1 switch is ready for configuration to the
specific application requirements.
Note: The normal operating mode is AUTOMATIC, which shall be changed to
MANUAL when locally configuring the 1:1 switch.
3.2.2.1
Prime
To configure the 1:1 switch for operation with the prime modem, set the following:
Address
Mod/Demod
Switching Mode
Enter a unique 3-digit decimal address for remote communications.
ON or OFF; Must be ON for consideration by the switch algorithm.
Select INDEPENDENT or DEPENDENT RX/TX switching.
Note: INDEPENDENT mode switching can be used to switch the modulator and/or the
demodulator. DEPENDENT mode switching always switches the modulator and
demodulator.
Rev. 3
3-3
Operation
3.2.2.2
SMS-301 Redundancy Switch
Backup
To configure the 1:1 switch for operation with the backup modem, set the following:
Address
Mod/Demod
Delay
Verify
Load
Enter a 3-digit decimal address for remote communications.
ON or OFF; Must be ON for consideration by the switch algorithm.
Enter the desired delay. If INDEPENDENT mode switching is selected,
enter delay for Mod and Demod.
Enable or disable Automatic Verify. This can be used to signal
configuration changes between modems.
Use the Load Modem A→B option under the Utility Modem Control
menu on the 1:1 switch to automatically configure the backup modem to
the prime modem configuration.
Note: If the backup modem is not to be configured to match the prime modem, the
programming of the backup modem shall be performed manually.
3-4
Rev. 3
SMS-301 Redundancy Switch
3.2.2.3
Operation
Operation Mode
Two modes of operation are available for the 1:1 switch:
AUTOMATIC
MANUAL
If the AUTOMATIC mode is selected, the 1:1 switch algorithm
will perform backup operations as defined in the Configuration
menus.
When the MANUAL mode is selected, the system provides a
dedicated menu through which the operator may unconditionally
assign backup RX and TX functions to replace the prime
modem.
Note: The 1:1 switch shall be in AUTOMATIC mode to automatically replace the
faulted prime.
The manual configuration may be used when Modem A parameters are to be different
than Modem B. The 1:1 switch is then used as a master switch. Turn automatic verify
off. (The automatic verify is located under the Utility Modem Control menu.)
3.3
Faults
Alerts to modem or 1:1 switch faults are provided in several ways:
•
Indicators on the 1:1 switch control panel, with specific information available in
the Faults/Alarms menu.
•
On demand via the 1:1 switch remote port. Specifics for 1:1 switch and modem
faults are available.
•
Analog status/fault indication signals on the rear of the 1:1 switch (J14).
Note: Refer to Chapter 5 for troubleshooting switch faults, or the respective modem
manual for modem faults.
Rev. 3
3-5
Operation
3.4
SMS-301 Redundancy Switch
Front Panel Keypad
The front panel keypad permits local operation of the 1:1 switch. The keypad consists of
six keys (Figure 3-2).
EN TE R
C LEAR
Figure 3-2. Keypad
Each key provides one or more logical functions. The keypad functions are defined in
Table 3-2.
Table 3-2. Keypad Functions
ENTER
CLEAR
[←] and [→]
[↑] and [↓]
This key is used to select a displayed function or to execute a 1:1 switch
configuration change.
This key is used to back out of a selection or to cancel a configuration change
which has not been executed using [ENTER]. Pressing [CLEAR] generally
returns the display to the previous selection.
These keys are used to move to the next selection or to move the cursor for
certain functions.
These keys are used primarily to change configuration data (numbers) but are
also used at times to move from one section to another.
The 1:1 switch responds by beeping whenever a key is pressed:
3-6
•
A single beep indicates a valid entry and the appropriate action was taken.
•
A double beep indicates an invalid entry, or a parameter is not available for
operation.
Rev. 3
SMS-301 Redundancy Switch
3.5
Operation
Menu System
To access and execute all functions, refer to Figure 3-3 through Figure 3-12. Use the
main menu in Figure 3-3 as a quick reference for accessing the 1:1 switch functions. For
further configuration details, refer to Section 3.2.
When the 1:1 switch power is turned ON, the base level of the menu system displays the
sign-on message:
•
•
Line 1 of the sign-on message is the 1:1 switch model number and type.
Line 2 is the version number of the firmware.
The main level of the menu system is Function Select. To access this level from the
sign-on message, press the [←] or [→] keys. From the Function Select menu, select one
of the functional categories:
•
•
•
•
•
Configuration
Monitor
Faults/Alarms
Stored Faults/Alarms
Utility
Press [←] or [→] to move from one selection to another. When line 2 displays the
desired function, select that level by pressing [ENTER]. After entering the appropriate
functional level, press [←] or [→] to move to the desired function.
To view or change the configuration of the 1:1 switch, enter the Configuration level from
the Function Select menu. Once in the Configuration menu, press [←] or [→] to scroll
through the Configuration menu selection.
Press [ENTER] to select the desired Configuration menu option. To view the options for
the selected configuration parameters, press [←] or [→]. To change a configuration
parameter, press [ENTER] to begin the change process.
Rev. 3
3-7
Operation
SMS-301 Redundancy Switch
Press [↑] or [↓] to change the parameters. After the display represents the correct
parameters, press [ENTER] to execute the change. This action initiates the necessary
programming by the 1:1 switch.
To undo a parameter change prior to execution, press [CLEAR].
The following notes describe each configuration function in detail.
Notes:
1. Figure 3-3 through Figure 3-12 list the front panel menu window selections.
2. Menus or commands that are specific to certain 1:1 switch configurations are
only accessible after selecting the appropriate 1:1 switch configuration. This
prevents incompatible parameters from accidentally being selected.
3-8
Rev. 3
SMS-301 Redundancy Switch
3.5.1
Operation
Front Panel Menus
SMS-301
VER: 1.1.7
FUNCTION SELECT
CONFIGURATION
FUNCTION SELECT
MONITOR
(Figure 3-8)
FUNCTION SELECT
FAULTS
(Figure 3-9)
FUNCTION SELECT
STORED FAULTS
(Figure 3-10)
FUNCTION SELECT
UTILITY
CONFIGURATION
SWITCH CONTROL
(Figure 3-4)
UTLITY SYSTEM
(Figure 3-11)
CONFIGURATION
SYSTEM
(Figure 3-5)
UTILITY MODEM
CONTROL
(Figure 3-12)
CONFIGURATION
SAVE
(Figure 3-6)
CONFIGURATION
RECALL
(Figure 3-7)
Key:
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTIONDEPENDENT
Parameter
Information
Figure 3-3. Main Menu
Rev. 3
3-9
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
FUNCTION SELECT
CONFIGURATION
CONFIGURATION
SWITCH CONTROL
OPERATION MODE
ON-LINE MODEM
ON-LINE MOD
AUTOMATIC
MANUAL
A-MODEM
B-MODEM
(Dependent and Manual
Mode only)
A-MOD
B-MOD
(Independent and Manual
Mode only)
ON-LINE DEMOD
Key:
A-DEMOD
B-DEMOD
(Independent and Manual
Mode only)
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-4. Configuration Switch Control Menu
3-10
Rev. 3
SMS-301 Redundancy Switch
3.5.1.1
Operation
Configuration Switch Control Menu
Refer to Figure 3-4.
OPERATION MODE
Programs the 1:1 switch to AUTOMATIC or MANUAL mode.
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press
[ENTER] to execute the change, or [CLEAR] to abandon the
change.
ON-LINE MODEM
Note: The AUTOMATIC mode is the normal operating mode.
The MANUAL mode is required for most configuration changes.
Select the prime or backup modem (A-MODEM or B-MODEM).
Note: Ensure that the 1:1 switch is in MANUAL mode.
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press
[ENTER] to execute the change, or [CLEAR] to abandon the
change.
ON-LINE MOD
Note: This feature is available in the DEPENDENT and
MANUAL mode only.
Select the prime or backup MODULATOR.
Note: Ensure that the 1:1 switch is in MANUAL mode.
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press
[ENTER] to execute the change, or [CLEAR] to abandon the
change.
ON-LINE DEMOD
Note: This feature is available in the INDEPENDENT and
MANUAL mode only.
In the ON-LINE DEMODULATOR, the operator can select a
prime or backup demodulator.
Note: Ensure 1:1 switch is in MANUAL mode.
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press
[ENTER] to execute the change, or [CLEAR] to abandon the
change.
Note: This feature is available in the INDEPENDENT and
MANUAL mode only.
Rev. 3
3-11
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
FUNCTION SELECT
CONFIGURATION
CONFIGURATION
SYSTEM
SWITCH MODE
MODEM DELAY
MODULATOR DELAY
INDEPENDENT
DEPENDENT
(Change in Manual mode only)
0.0 to 127.0 seconds,
in 0.5 second increments.
(Change in Dependent mode only)
0.0 to 127.0 seconds,
in 0.5 second increments.
(Change in Independent
mode only)
DEMODULATOR DELAY
0.0 to 127.0 seconds,
in 0.5 second increments.
(Change in Independent
mode only)
MODULATORS
ACTIVE
IN-ACTIVE
(Change in Manual mode only)
DEMODULATORS
ACTIVE
IN-ACTIVE
(Change in Manual mode only)
Key:
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-5. Configuration System Menu
3-12
Rev. 3
SMS-301 Redundancy Switch
3.5.1.2
Operation
Configuration System Menu
Refer to Figure 3-5 for the Configuration System.
SWITCH MODE
Programs the 1:1 switch to INDEPENDENT or DEPENDENT mode.
DEPENDENT— If a prime component (modulator or demodulator)
faults, the prime system will go off-line. The backup system
(modulator and demodulator) will come on-line.
INDEPENDENT— If a prime component (modulator or
demodulator) faults, the backup component (modulator or
demodulator) will come on-line.
Note: Ensure 1:1 switch is in MANUAL mode.
MODEM DELAY
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press [ENTER] to
execute the change, or [CLEAR] to abandon the change.
Programs a switching delay of 0 to 127 seconds, in 0.5 second
increments.
Note: Ensure 1:1 switch is in DEPENDENT mode
MODULATOR DELAY
Upon entry, the current status of the 1:1 switch is displayed. Press
[←] or [→] to move the flashing cursor. Press [↑] or [↓] to increase
or decrease the numbers. Press [ENTER] to execute the change, or
[CLEAR] to abandon the change.
Programs a switching delay of 0 to 127 seconds, in 0.5 second
increments.
Note: Ensure 1:1 switch is in INDEPENDENT mode
DEMODULATOR
DELAY
Upon entry, the current status of the 1:1 switch is displayed. Press
[←] or [→] to move the flashing cursor. Press [↑] or [↓] to increase
or decrease the numbers. Press [ENTER] to execute the change, or
[CLEAR] to abandon the change.
Programs a switching delay of 0 to 127 seconds, in 0.5 second
increments.
Note: Ensure 1:1 switch is in INDEPENDENT mode
MODULATORS
Upon entry, the current status of the 1:1 switch is displayed. Press
[←] or [→] to move the flashing cursor. Press [↑] or [↓] to increase
or decrease the numbers. Press [ENTER] to execute the change, or
[CLEAR] to abandon the change.
Programs the modulators to ACTIVE or INACTIVE.
Note: Ensure 1:1 switch is in MANUAL mode.
DEMODULATORS
Rev. 3
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press [ENTER] to
execute the change, or [CLEAR] to abandon the change.
Programs the demodulators to ACTIVE or INACTIVE.
3-13
Operation
SMS-301 Redundancy Switch
Note: Ensure 1:1 switch is in MANUAL mode.
Upon entry, the current status of the 1:1 switch is displayed. Press
[ENTER], then use any of the arrow keys to select. Press [ENTER] to
execute the change, or [CLEAR] to abandon the change.
3-14
Rev. 3
SMS-301 Redundancy Switch
Operation
SMS-301
VER: X.X.X
FUNCTION SELECT
CONFIGURATION
CONFIGURATION
SAVE
CONFIGURATION #X
SAVE
Key:
ACCESS TO
SUBMENU
X = 1, 2, 3, 4, or 5.
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-6. Configuration Save Menu
3.5.1.3
Configuration Save Menu
Refer to Figure 3-6.
CONFIGURATION #X
SAVE
X = 1, 2, 3, 4, or 5.
Provides five memory locations for configurations to be saved into on
the M&C.
Press [ENTER], then use any of the arrow keys to select the desired
memory location. Press [ENTER] to execute the save, or [CLEAR] to
abandon the save.
Rev. 3
3-15
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
FUNCTION SELECT
CONFIGURATION
CONFIGURATION
RECALL
CONFIGURATION #X
RECALL
Key:
ACCESS TO
SUBMENU
X = 1, 2, 3, 4, or 5.
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-7. Configuration Recall Menu
3.5.1.4
Configuration Recall Menu
Refer to Figure 3-7.
CONFIGURATION #X
RECALL
X = 1, 2, 3, 4, or 5.
Allows the recall of configurations that were previously saved on the
M&C.
Press [ENTER], then use any of the arrow keys to select the desired
memory location. Press [ENTER] to execute the recall, or [CLEAR]
to abandon the recall.
3-16
Rev. 3
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
Operation
FUNCTION SELECT
MONITOR
MOD MM X-ONLINE
DMD DD Y-ONLINE
Key:
MM = A and B,
Modulators Active.
DD = A and B,
Demodulators Active.
X = A or B, Modulator Online.
Y = A or B, Demodulator Online.
Status only.
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-8. Monitor Menu
3.5.1.5
Monitor Menu
Refer to Figure 3-8.
MOD MM X–ONLINE
DMD DD Y–ONLINE
(Status Only.)
Line 1 displays summary of active prime modems and online
backup modems.
Line 2 displays summary of active prime and online backup
demodulators.
Where:
MM = A and B, indicates modulators are active.
If not active, an “_” is displayed.
DD = A and B, indicates demodulators are active.
If not active, an “_” is displayed.
X = A or B, indicates modulator A or B online.
Y = A or B, indicates demodulators A or B online.
Rev. 3
3-17
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
FUNCTION SELECT
FAULTS/ALARMS
OPERATIONAL
++
MOD ONLINE
DMD ONLINE
COMMON
------+---
BATTERY/CLOCK
+12 VOLT SUPPLY
+5 VOLT SUPPLY
PWR SUPPLY #1
PWR SUPPLY #2
CONTROLLER
MODEM COM LINK
MOD VERIFY
DEMOD VERIFY
INTERFACE MODULE
Key:
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-9. Faults/Alarms Menu
3-18
Rev. 3
SMS-301 Redundancy Switch
3.5.1.6
Operation
Faults/Alarms
Refer to Figure 3-9.
The Faults/Alarms level is accessible from the Function Select menu. Press [←] or [→]
to move between the following Faults/Alarms groups:
OPERATIONAL
X
(Status Only)
X = 0 through 9.
Displays the fault status of the currently selected on-line modulator and
demodulator.
COMMON
When a fault is present, the date and time of the fault is displayed alternately.
(Status Only)
Note: Date and time faults are also displayed.
Use [←] or [→] to display faults within the 1:1 switch, such as the following:
Battery Clock - Battery or clock fault.
•
+12V Supply - +12V supply fault.
•
+5V Supply - +5V supply fault
•
Power Supply #1 - Power supply #1 fault.
•
Power Supply #2 - Power supply #2 fault.
•
Controller - Controller power ON/OFF cycle fault.
•
Modem COMM Link - Modem communications fault.
•
Modem Verify- Prime and backup modems do not match.
•
DEMOD Verify - Prime and backup DEMODS do not match.
•
Interface Module - Interface module is missing or will not program
•
fault.
Rev. 3
3-19
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
OPERATIONAL
++
MOD ONLINE
DMD ONLINE
FUNCTION SELECT
STORED FLTS/ALMS
COMMON
------+---
BATTERY/CLOCK
+12 VOLT SUPPLY
+5 VOLT SUPPLY
PWR SUPPLY #1
PWR SUPPLY #2
CONTROLLER
MODEM COM LINK
MOD VERIFY
DEMOD VERIFY
INTERFACE MODULE
CLEAR ??
STORED FAULTS
Press [ENTER] twice to clear
stored faults.
Key:
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-10. Stored Faults/Alarms Menu
3-20
Rev. 3
SMS-301 Redundancy Switch
3.5.1.7
Operation
Stored Faults/Alarms
Refer to Figure 3-10.
OPERATIONAL X
(Status Only)
X = 0 through 9.
Displays the fault status of the currently selected on-line modulator and
demodulator.
COMMON
When a stored fault is present, the date and time of the fault will be displayed
alternately.
(Status Only)
Note: Date and time of faults also are displayed.
CLEAR??
STORED FAULTS
Press [←] or [→] to display faults within the 1:1 switch, such as the following:
• Battery Clock - Battery or clock fault.
• +12V Supply - +12V supply fault.
• +5V Supply - +5V supply fault
• Power Supply #1 - Power supply #1 fault.
• Power Supply #2 - Power supply #2 fault.
• Controller - Controller power ON/OFF cycle fault.
• Modem COMM Link - Modem communications fault.
• Modem Verify- Prime and backup modems do not match.
• DEMOD Verify - Prime and backup DEMODS do not match.
• Interface Module - Interface module is missing or will not program
fault.
Allows the operator to clear all stored faults within the memory of the 1:1 switch.
Press [ENTER], then ‘YES’ is displayed. Press [ENTER] to confirm clearing all
stored faults, or press [CLEAR] to exit without clearing stored faults.
Rev. 3
3-21
Operation
SMS-301 Redundancy Switch
SMS-301
VER: X.X.X
TIME: 12:00:00AM
DATE: 12/12/97
Current time: HH:MM:SS AM
Current date: MM/DD/YY
LAMP TEST ??
PRESS ENTER
Illuminates all front panel LEDs
for three seconds
M&C FIRMWARE
FW/NNNNNN-DDR
NNNNNN = Number
DD = Dash Number
R = Revision Number
Press [ENTER] to view date of
M&C firmware.
FUNCTION SELECT
UTILITY
UTILITY SYSTEM
REMOTE BAUD RATE
REMOTE ADDRESS
REMOTE TYPE
1 to 255
RS232
RS485 (2-WIRE)
RS485 (4-WIRE)
Baud rate:150, 300, 600, 1200,
2400, 4800, 9600, 19200
Parity: EVEN, ODD, or NONE.
DISPLAY CONTRAST
LEVEL: 64
Sets the display contrast level
as desired, from 0 to 100.
BOOT FIRMWARE
FW/NNNNNN-DDR
INTERFACE TYPE
Status only.
POWER SUPPLY
1 ACTIVE
2 ACTIVE
1&2 ACTIVE
MASTER RESET
HARD/SOFT
NNNNNN = Number
DD = Dash Number
R = Revision Number
Press [ENTER] to view date
and version number of Boot
firmware.
SOFT
HARD
Key:
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
Figure 3-11. Utility System Menu
3-22
Rev. 3
SMS-301 Redundancy Switch
3.5.1.8
Operation
Utility System
Refer to Figure 3-11.
TIME: HH:MM:SS AM
DATE: MM/DD/YY
Time of day and date display/set function.
To change the time and/or date:
Note: Ensure 1:1 switch is in MANUAL mode.
REMOTE BAUD RATE
Press [←] or [→] to position the cursor over the parameter to
be changed. Press [↑] or [↓] to change the parameter. Once the
parameters are set as desired, press [ENTER] to set the time
and date.
The parity and baud rate settings of the 1:1 switch are
displayed.
To change the baud rate and/or parity, perform the following:
Note: Ensure 1:1 switch is in MANUAL mode.
The available baud rates are as follows: 150, 300, 600, 1200,
2400, 4800, 9600, or 19200 bps. Baud rates are set by pressing
[ENTER], and then [↑] or [↓] to select the desired rate. Press
[ENTER] to accept the change, or [CLEAR] to abandon the
change.
REMOTE ADDRESS
The parity can be set to EVEN, ODD, or NONE, by pressing
[ENTER], [→] to place the cursor on the parity setting, and
then [↑] or [↓] to select the desired setting. Press [ENTER] to
accept the change, or [CLEAR] to abandon the change.
The current 1:1 switch address is displayed (1 to 255).
To change the remote address, press [ENTER], then [←] or
[→] to position the cursor over the parameter to be changed.
Press [↑] or [↓] to change the parameter, then press [ENTER]
to accept the change, or [CLEAR] to abandon the change.
REMOTE TYPE
LAMP TEST ??
PRESS ENTER
Rev. 3
Note: A 0 address is reserved for global use only.
Displays the current remote type: EIA-232, EIA-485 (2-Wire),
or EIA-485 (4-Wire).
To change the remote type, press [ENTER], then any of the
arrow keys to select the desired remote type. Press [ENTER]
to accept the change, or [CLEAR] to abandon the change.
Lamp test function. Press [ENTER] to turn all front panel LED
indicators ON for 3 seconds.
3-23
Operation
SMS-301 Redundancy Switch
DISPLAY CONTRAST
Sets the display contrast setting, as desired.
Note: Ensure 1:1 switch is in MANUAL mode.
INTERFACE TYPE
To change the display contrast, press [ENTER], then [←] or
[→] to position the cursor over the parameter to be changed.
Press [↑] or [↓] to change the parameter, then press [ENTER]
to accept the change, or [CLEAR] to abandon the change.
(Status Only)
Displays the currently installed interface type, as follows:
POWER SUPPLY
M&C FIRMWARE
BOOT FIRMWARE
MASTER RESET
HARD/SOFT
50-Pin
25-Pin (V.35)
37-Pin
37-Pin (LVDS)
25-Pin (EIA-232)
37-Pin (EIA-422)
25-Pin (EIA-530)
Displays the currently selected power supply (1 ACTIVE,
2 ACTIVE, or 1&2 ACTIVE).
To change the power supply setting, press [ENTER], then any
of the arrow keys to select the desired setting. Press [ENTER]
to accept the change, or [CLEAR] to abandon the change.
Displays the M&C firmware version number. Press [ENTER]
to display the date of the M&C firmware.
Displays the BOOT firmware version number. Press [ENTER]
to display the date of the BOOT firmware.
Master reset function (SOFT or HARD).
CAUTIO N
Initiating a HARD reset will reset the 1:1 switch and place the
default configuration settings in ROM. Initiating a SOFT reset
will reset the 1:1 switch hardware, but saves the current
configuration settings.
To perform a master reset, press [ENTER], any of the arrow
keys to select the type, then press [ENTER] again. Press [→]
five times to position the cursor on YES. Press [ENTER] to
confirm the reset type and execute the reset, or [CLEAR] to
change reset type and/or abandon the reset.
Note: The following parameters do not revert to default
settings after a hard reset:
Address
Parity
Baud Rate
Remote Type
Display Contrast
3-24
Rev. 3
SMS-301 Redundancy Switch
Operation
This page is intentionally left blank.
Rev. 3
3-25
Operation
SMS-301 Redundancy Switch
S M S -301
V ER : X.X.X
FU N C T IO N S E LE C T
U T ILIT Y
U T ILIT Y
MO DEM CONTROL
A U T O M A T IC VE R IFY
LO A D M O D EM
A ->B
LO A D M O D EM
B ->A
M O D E M A A D D R E SS
E N A BLE
D ISA B LE
P ress [EN T E R ] twice to copy
M odem A configuration to M odem
B.
P ress [EN T E R ] twice to
copy M odem B
configuration to M odem A .
1 to 255.
M O D E M B A D D R E SS
MO DEM BAUD RATE
R E V E M U LAT IO N
C U R R EN T _V E R S IO N
1 to 255.
9600
19200
S tatus only.
Key:
A C C ES S TO
S U B M EN U
C O N D ITION AL OR
O P TION -D E PE N D E N T
P a ra m e ter In fo rm atio n
Figure 3-12. Utility Modem Control Menu
3-26
Rev. 3
SMS-301 Redundancy Switch
3.5.1.9
Operation
Utility Modem Control
Refer to Figure 3-12.
AUTOMATIC VERIFY
Selects ENABLE or DISABLE for automatic verify feature.
LOAD MODEM A → B
To change the setting, press [ENTER], then use any of the arrow keys
to select. Press [ENTER] to accept the change, or [CLEAR] to abandon
the change.
Copies Modem A configuration to Modem B.
LOAD MODEM B → A
To perform the copy function, press [ENTER] twice.
Copies Modem B configuration to Modem A.
MODEM A ADDRESS
To perform the copy function, press [ENTER] twice.
Selects an address from 1 to 255 for Modem A.
To change the address for Modem A, press [ENTER], then [←] or [→]
to position the cursor over the parameter to be changed. Press [↑] or [↓]
to change the parameter, then press [ENTER] to accept the change, or
[CLEAR] to abandon the change.
MODEM B ADDRESS
Note: A 0 address is reserved for global use only.
Selects an address for Modem B.
To change the address for Modem B, press [ENTER], then [←] or [→]
to position the cursor over the parameter to be changed. Press [↑] or [↓]
to change the parameter, then press [ENTER] to accept the change, or
[CLEAR] to abandon the change.
MODEM BAUD RATE
Note: A 0 address is reserved for global use only.
Selects the modem baud rate (9600 or 19200 bit/s).
To change the modem baud rate, press [ENTER], then any of the arrow
keys to select. Press [ENTER] to accept the change, or [CLEAR] to
abandon the change.
Rev. 3
3-27
Operation
SMS-301 Redundancy Switch
REV EMULATION
Programs an emulation mode of the previous functional revision. This
allows the operator to select the CURRENT VERSION or
FUNCTIONAL X:
Note: The number displayed in the CURRENT VERSION position
increases with each software version change.
Upon entry, the CURRENT VERSION is displayed. Press [↑] or [↓] to
select the FUNCTIONAL version. Press [ENTER] to execute the
change.
Notes:
1. Programming a current version (default) allows all features and
options (if installed) to operate normally.
2. Programming a FUNCTIONAL version (X) eliminates any changes
that affect the later version. Only functional changes are affected by
the revision emulation feature.
3. A correction change (e.g., VER 1.1.1) remains fixed in accordance
with the latest version. Since the revision emulation default is the
current version, program the functional version at the start of each
operation.
4. The revision emulation feature does not affect some interface
changes for the direct operation of the modem (Configuration
Save/Recall, test mode screen in the Utility/System, all factory setup
modes, etc.).
3-28
Rev. 3
4
Chapter 4.
THEORY OF OPERATION
This chapter provides the basic theory of operation for the following:
•
•
•
•
•
•
•
•
4.1
M&C 75Ω
M&C 50Ω
IBS, IDR, ASYNC, D&I, 50-pin (PL/5951)
EIA-422/-449, V.35, G.703, 37-pin (PL/5952)
LVDS/DVB-TX, 37-pin (PL/6201-1)
EIA-422/DVB-TX, 37-pin (PL/6201-2)
EIA-232/-422/-530, V.35, G.703 25-pin (PL/6026)
Remote Switch Option (RS-301), 100-pin (PL6592/6627)
Monitor and Control (M&C)
The M&C monitors the switch configuration, as well as 1:1 switch and modem faults and
status. 1:1 switch configuration parameters are stored in battery-backed RAM to provide
total recovery after a power-down. The 1:1 switch gathers status and provides extensive
fault monitoring. A local front panel interface and a remote communications interface
provide user access to all 1:1 switch functions.
Rev. 3
4-1
Theory of Operation
4.1.1
SMS-301 Redundancy Switch
Theory of Operation
The M&C module uses an Intel 80C32 microcontroller operating at 11.0592 MHz. The
microsystem supports 256 kbit/s of FLASH memory for code and data.
Memory-mapped I/O includes:
•
•
•
Real time clock/memory
8-channel analog-to-digital converter
External buffered bus structure for overall 1:1 switch control and status gathering.
The 80C32 microcontroller supports a serial, asynchronous, remote control (J10)
communications channel (EIA-232 or EIA-485) with a maximum baud rate of 19200 bit/s.
The modem control interface (J13) is an EIA-485 serial communication link which allows
the 1:1 switch to monitor and configure the attached modems.
A lithium battery maintains the system real time clock and 1:1 switch configuration
through power-down situations.
The M&C motherboard interfaces and controls a variety of data interface connector
switch boards. The customer-application dictates the type of connector switch board to be
installed within the 1:1 switch.
4-2
Rev. 3
SMS-301 Redundancy Switch
Theory of Operation
4.2
SMS-301 Data Interface
4.2.1
IBS, IDR, ASYNC, or D&I (J1, J2, J3), 50-Pin (PL/5951)
The applications for this board are IDR, IBS, ASYNC, or D&I format data. The board
consists of three 50-pin data I/O connectors, interface, and switching electronics. There
are no configuration jumpers on the 50-pin board.
The interface to the M&C motherboard is via a 40-pin connector located along one side of
the board. The board, under M&C control, will switch data between the prime modem
(J2), and/or the backup modem (J3), and the common customer-data interface (J1).
The M&C automatically detects the type of board installed and presents this information,
via the front panel display, under Interface Type in the Utility System menu.
4.2.2
EIA-422/-449, G.703, or V.35 (J1, J2, J3), 37-Pin (PL/5952)
The applications for this board are EIA-422/-449, G.703 or V.35 format data. The board
consists of three 37-pin data I/O connectors, interface, and switching electronics.
The interface to the M&C motherboard is via a 40-pin connector located along one side of
the board. The board, under M&C control, will switch data between the prime modem
(J2), and/or the backup modem (J3), and the common customer-data interface (J1).
The M&C automatically detects the type of switch board installed and presents this
information, via the front panel display, under Interface Type in the Utility System menu.
4.2.3
LVDS-DVB TX, (J1, J2, J3), 37-Pin, (PL/6201-1)
There are no configuration jumpers on the LVDS board. The current version of this board
is for the SDM-2020 Satellite Modulator only. The intended signal flow path is from the
customer-connection on J1 to the switched equipment on J2 and J3.
In the powered down state, this board provides an unbuffered signal path from J1 to J2.
When power is available to the board, the signals from J1 to J2 and J3 are buffered.
Rev. 3
4-3
Theory of Operation
4.2.4
SMS-301 Redundancy Switch
EIA-422/DVB TX (J1, J2, J3), 25-Pin (PL/6026)
The applications for this switch board are EIA-232, EIA-422, or V.35 format data. The
switch board consists of three 25-pin data I/O connectors, interface, and switching
electronics.
The interface to the M&C motherboard is via a 40-pin connector located along one side of
the switch board. The switch board, under M&C control, will switch data between the
prime modem (J2), and/or the backup modem (J3), and the common customer-data
interface (J1).
The M&C automatically detects the type of switch board installed and presents this
information, via the front panel display, under Interface Type in the Utility System menu.
4-4
Rev. 3
SMS-301 Redundancy Switch
4.3
Theory of Operation
Remote Switch (RS-301) Option
The application for this option is to provide access to tributary data, via the remote
switch, when the 1:1 switch is used with two SDM-300/-300A Satellite Modems that are
configured for the 8-Channel MUX option.
For this option an extender board (AS/6542) replaces the switch board that normally
resides within the 1:1 switch. This extender board interfaces with the M&C motherboard
and provides control signals, power and ground to an external data switch (RS-301).
The remote switch (RS-301) provides the user with connections for eight tributary
channels (EIA-422, EIA-232 data and clock) and one connection for auxiliary data. This
switch, under M&C control, will switch data (only) between the prime modem and/or the
backup modem, and the customer-data interface. The TX IF switching remains internal to
the 1:1 switch.
The M&C automatically detects this switch option and presents this information, via the
front panel display, under Interface Type in the Utility System menu.
The connectors for the remote switch are listed in Table 4-1.
Table 4-1. Remote Switch (RS-301) Connectors
Name
TRIBUTARY 1 DATA
REF DES
J1
TRIBUTARY 2 DATA
J2
15-pin D
TRIBUTARY 3 DATA
J3
15-pin D
TRIBUTARY 4 DATA
J4
15-pin D
TRIBUTARY 5 DATA
J5
15-pin D
TRIBUTARY 6 DATA
J6
15-pin D
TRIBUTARY 7 DATA
J7
15-pin D
TRIBUTARY 8 DATA
J8
15-pin D
AUX
MODEM A DATA
MODEM B DATA
SWITCH CONTROL
INTERFACE
J9
J14
J15
J16
15-pin D
100-pin Miniature D
100-pin Miniature D
37-pin D
Rev. 3
Connector Type
15-pin D
Function
EIA-422 or EIA-232
TRIB 1 Clock and Data
EIA-422 or EIA-232
TRIB 2 Clock and Data
EIA-422 or EIA-232
TRIB 3 Clock and Data
EIA-422 or EIA-232
TRIB 4 Clock and Data
EIA-422 or EIA-232
TRIB 5 Clock and Data
EIA-422 or EIA-232
TRIB 6 Clock and Data
EIA-422 or EIA-232
TRIB 7 Clock and Data
EIA-422 or EIA-232
TRIB 8 Clock and Data
Auxiliary Data
Modem A Data I/O
Modem B Data I/O
Control Signals, Power and
Ground
Table Reference
Table 4-2
Table 4-3
Table 4-4
Table 4-5
Table 4-6
Table 4-7
Table 4-8
Table 4-9
Table 4-10
Table 4-11
Table 4-12
Table 4-13
4-5
Theory of Operation
SMS-301 Redundancy Switch
Table 4-2. Tributary 1 Data (J1)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
Name
CTS422A1
GND
TC422B-1
TD422A-1
TD232-1
CTS422B1
TC422A-1
TD422B-1
CTS232-1
TC232-1
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-3. Tributary 2 Data (J2)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
Name
CTS422A2
GND
TC422B-2
TD422A-2
TD232-2
CTS422B2
TC422A-2
TD422B-2
CTS232-2
TC232-2
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-4. Tributary 3 Data (J3)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
4-6
Name
CTS422A3
GND
TC422B-3
TD422A-3
TD232-3
CTS422B3
TC422A-3
TD422B-3
CTS232-3
TC232-3
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Rev. 3
SMS-301 Redundancy Switch
Theory of Operation
Table 4-5. Tributary 4 Data (J4)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
Name
CTS422A4
GND
TC422B-4
TD422A-4
TD232-4
CTS422B4
TC422A-4
TD422B-4
CTS232-4
TC232-4
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-6. Tributary 5 Data (J5)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
Name
CTS422A5
GND
TC422B-5
TD422A-5
TD232-5
CTS422B5
TC422A-5
TD422B-5
CTS232-5
TC232-5
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-7. Tributary 6 Data (J6)
Pin No.
1
2, 5, 11
3
4
6
9
10
12
13
14
Rev. 3
Name
CTS422A6
GND
TC422B-6
TD422A-6
TD232-6
CTS422B6
TC422A-6
TD422B-6
CTS232-6
TC232-6
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
4-7
Theory of Operation
SMS-301 Redundancy Switch
Table 4-8. Tributary 7 Data (J7)
Pin No.
1
2,5,11
3
4
6
9
10
12
13
14
Name
CTS422A7
GND
TC422B-7
TD422A-7
TD232-7
CTS422B7
TC422A-7
TD422B-7
CTS232-7
TC232-7
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-9. Tributary 8 Data (J8)
Pin No.
1
2,5,11
3
4
6
9
10
12
13
14
Name
CTS422A8
GND
TC422B-8
TD422A-8
TD232-8
CTS422B8
TC422A-8
TD422B-8
CTS232-8
TC232-8
Function
EIA-422, Clear-to-Send A (-)
Ground
EIA-422, TX Clock B (+)
EIA-422 TX Data A (-)
EIA-232 TX Data
EIA-422 Clear-to-Send B (+)
EIA-422 TX Clock A (-)
EIA-422 TX Clock B (+)
EIA-232 Clear-to-Send
EIA-232 TX Clock
Table 4-10. AUX Data (J9)
Pin No.
1
2,5,11
3
4
6
7
8
9
10
12
13
14
15
4-8
Name
MCA
GND
RT-B
RD-A
RR-B
N/C
MF
MCB
RT-A
RD-B
RR-A
N/C
DF
Function
TX Aggregate Clock
Ground
EIA-422, RX Timing B (+)
EIA-422, RX Data A (-)
RX Ready B (+)
No Connection
MOD Fault
TX Aggregate Data
EIA-422, RX Timing A (-)
EIA-422, RX Data B (+)
RX Ready A (-)
No Connection
DEMOD Fault
Rev. 3
SMS-301 Redundancy Switch
Theory of Operation
Table 4-11. Modem A Data (J14)
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Circuit
GND
GND
/A_DF
/A_MF
GND
A_RT+B
A_RT-A
GND
A_RD+B
A_RD-A
GND
A_RR+B
A_RR-A
GND
A_MCB
A_MCA
GND
A_TC232_8
A_TD232_8
A_CTS232_8
A_TD422B_8
A_TD422A_8
A_TC422B_8
A_TC422A_8
A_CTS422B8
A_CTS422A8
GND
A_TC232_7
A_TD232_7
A_CTS232_7
A_TD422B_7
A_TD422A_7
A_TC422B_7
A_TC422A_7
A_CTS422B7
A_CTS422A7
GND
A_TC232_6
A_TD232_6
A_CTS232_6
A_TD422B_6
A_TD422A_6
A_TC422B_6
A_TC422A_6
A_CTS422B6
A_CTS422A6
Rev. 3
Description
N/A
N/A
N/A
N/A
GROUND
GROUND
DEMOD FAULT
MOD FAULT
GROUND
RECEIVE TIMING B (+)
RECEIVE TIMING A (-)
GROUND
RECEIVE DATA B (+)
RECEIVE DATA A (-)
GROUND
RECEIVER READY B (+)
RECEIVER READY A (-)
GROUND
MASTER CLOCK B
MASTER CLOCK A
GROUND
EIA-232, TX CLK, TRIB 8
EIA-232, TX DAT, TRIB 8
EIA-232, CTS, TRIB 8
EIA-422, TX DATB (+), TRIB 8
EIA-422, TX DATA (-), TRIB 8
EIA-422, TX CLKB (+), TRIB 8
EIA-422, TX CLKA (-), TRIB 8
EIA-422, CTSB (+), TRIB 8
EIA-422, CTSA (-), TRIB 8
GROUND
EIA-232 ,TX CLK, TRIB 7
EIA-232, TX DAT, TRI 7
EIA-232, CTS, TRIB 7
EIA-422, TX DATB (+), TRIB 7
EIA-422, TX DATA (-), TRIB 7
EIA-422, TX CLKB (+), TRIB 7
EIA-422, TX CLKA (-), TRIB 7
EIA-422, CTSB (+), TRIB 7
EIA-422, CTSA (-), TRIB 7
GROUND
EIA-232, TX CLK, TRIB 6
EIA-232, TX DAT, TRIB 6
EIA-232, CTS, TRIB 6
EIA-422, TX DATB (+),TRIB 6
EIA-422, TX DATA (-), TRIB 6
EIA-422, TX CLKB (+), TRIB 6
EIA-422, TX CLKA (-), TRIB 6
EIA-422, CTSB (+), TRIB 6
EIA-422, CTSA (-), TRIB 6
Pin #
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Circuit
GND
A_TC232_5
A_TD232_5
A_CTS232_5
A_TD422B_5
A_TD422A_5
A_TC422B_5
A_TC422A_5
A_CTS422B5
A_CTS422A5
GND
A_TC232_4
A_TD232_4
A_CTS232_4
A_TD422B_4
A_TD422A_4
A_TC422B_4
A_TC422A_4
A_CTS422B4
A_CTS422A4
GND
A_TC232_3
A_TD232_3
A_CTS232_3
A_TD422B_3
A_TD422A_3
A_TC422B_3
A_TC422A_3
A_CTS422B3
A_CTS422A3
GND
A_TC232_2
A_TD232_2
A_CTS232_2
A_TD422B_2
A_TD422A_2
A_TC422B_2
A_TC422A_2
A_CTS422B2
A_CTS422A2
GND
A_TC232_1
A_TD232_1
A_CTS232_1
A_TD422B_1
A_TD422A_1
A_TC422B_1
A_TC422A_1
A_CTS422B1
A_CTS422A1
Description
GROUND
EIA-232, TX CLK, TRIB 5
EIA-232, TX DAT, TRIB 5
EIA-232, CTS, TRIB 5
EIA-422, TX DATB (+), TRIB 5
EIA-422, TX DATA (-), TRIB 5
EIA-422, TX CLKB (+), TRIB 5
EIA-422, TX CLKA (-), TRIB 5
EIA-422, CTSB (+), TRIB 5
EIA-422, CTSA (-), TRIB 5
GROUND
EIA-232, TX CLK, TRIB 4
EIA-232, TX DAT, TRIB 4
EIA-232, CTS, TRIB 4
EIA-422, TX DATB (+), TRIB 4
EIA-422, TX DATA (-), TRIB 4
EIA-422, TX CLKB (+), TRIB 4
EIA-422, TX CLKA (-), TRIB 4
EIA-422, CTSB (+), TRIB 4
EIA-422, CTSA (-), TRIB 4
GROUND
EIA-232 ,TX CLK, TRIB 3
EIA-232, TX DAT, TRIB 3
EIA-232, CTS, TRIB
EIA-422, TX DATB (+), TRIB 3
EIA-422, TX DATA (-), TRIB 3
EIA-422, TX CLKB (+), TRIB 3
EIA-422, TX CLKA (-), TRIB 3
EIA-422, CTSB (+), TRIB 3
EIA-422, CTSA (-), TRIB 3
GROUND
EIA-232, TX CLK, TRIB 2
EIA-232, TX DAT, TRIB 2
EIA-232, CTS, TRIB 2
EIA-422, TX DATB (+), TRIB 2
EIA-422, TX DATA (-), TRIB 2
EIA-422, TX CLKB (+), TRIB 2
EIA-422, TX CLKA (-), TRIB 2
EIA-422, CTSB (+), TRIB 2
EIA-422, CTSA (-), TRIB 2
GROUND
EIA-232, TX CLK, TRIB 1
EIA-232, TX DAT, TRIB 1
EIA-232, CTS, TRIB 1
EIA-422, TX DATB (+), TRIB 1
EIA-422, TX DATA (-), TRIB 1
EIA-422, TX CLKB (+), TRIB 1
EIA-422, TX CLKA (-), TRIB 1
EIA-422 CTSB (+), TRIB 1
EIA-422, CTSA (-), TRIB 1
4-9
Theory of Operation
SMS-301 Redundancy Switch
Table 4-12. Modem B Data (J15)
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
4-10
Circuit
GND
GND
/B_DF
/B_MF
GND
B_RT+B
B_RT-A
GND
B_RD+B
B_RD-A
GND
B_RR+B
B_RR-A
GND
B_MCB
B_MCA
GND
B_TC232_8
B_TD232_8
B_CTS232_8
B_TD422B_8
B_TD422A_8
B_TC422B_8
B_TC422A_8
B_CTS422B8
B_CTS422A8
GND
B_TC232_7
B_TD232_7
B_CTS232_7
B_TD422B_7
B_TD422A_7
B_TC422B_7
B_TC422A_7
B_CTS422B7
B_CTS422A7
GND
B_TC232_6
B_TD232_6
B_CTS232_6
B_TD422B_6
B_TD422A_6
B_TC422B_6
B_TC422A_6
B_CTS422B6
B_CTS422A6
Description
N/A
N/A
N/A
N/A
GROUND
GROUND
DEMOD FAULT
MOD FAULT
GROUND
RECEIVE TIMING B(+)
RECEIVE TIMING A(-)
GROUND
RECEIVE DATA B(+)
RECEIVE DATA A(-)
GROUND
RECEIVER READY B(+)
RECEIVER READY A(-)
GROUND
MASTER CLOCK B
MASTER CLOCK A
GROUND
EIA-232,TX CLK, TRIB 8
EIA-232,TX DAT, TRI 8
EIA-232, CTS, TRIB 8
EIA-422, TX DATB (+), TRIB 8
EIA-422, TX DATA (-), TRIB 8
EIA-422, TX CLKB (+), TRIB 8
EIA-422, TX CLKA (-), TRIB 8
EIA-422, CTSB (+), TRIB 8
EIA-422, CTSA (-), TRIB 8
GROUND
EIA-232, TX CLK, TRIB 7
EIA-232, TX DAT, TRI 7
EIA-232, CTS, TRIB 7
EIA-422, TX DATB (+), TRIB 7
EIA-422, TX DATA (-), TRIB 7
EIA-422, TX CLKB (+), TRIB 7
EIA-422, TX CLKA (-) TRIB 7
EIA-422, CTSB (+),TRIB 7
EIA-422, CTSA (-), TRIB 7
GROUND
EIA-232, TX CLK, TRIB 6
EIA-232, TX DAT, TRI 6
EIA-232, CTS, TRIB 6
EIA-422, TX DATB (+),TRIB 6
EIA-422, TX DATA (-), TRIB 6
EIA-422, TX CLKB (+), TRIB 6
EIA-422, TX CLKA (-), TRIB 6
EIA-422, CTSB (+), TRIB 6
EIA-422, CTSA (-), TRIB 6
Pin #
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Circuit
GND
B_TC232_5
B_TD232_5
B_CTS232_5
B_TD422B_5
B_TD422A_5
B_TC422B_5
B_TC422A_5
B_CTS422B5
B_CTS422A5
GND
B_TC232_4
B_TD232_4
B_CTS232_4
B_TD422B_4
B_TD422A_4
B_TC422B_4
B_TC422A_4
B_CTS422B4
B_CTS422A4
GND
B_TC232_3
B_TD232_3
B_CTS232_3
B_TD422B_3
B_TD422A_3
B_TC422B_3
B_TC422A_3
B_CTS422B3
B_CTS422A3
GND
B_TC232_2
B_TD232_2
B_CTS232_2
B_TD422B_2
B_TD422A_2
B_TC422B_2
B_TC422A_2
B_CTS422B2
B_CTS422A2
GND
B_TC232_1
B_TD232_1
B_CTS232_1
B_TD422B_1
B_TD422A_1
B_TC422B_1
B_TC422A_1
B_CTS422B1
B_CTS422A1
Description
GROUND
EIA-232, TX CLK, TRIB 5
EIA-232, TX DAT, TRIB 5
EIA-232, CTS, TRIB 5
EIA-422, TX DATB (+), TRIB 5
EIA-422, TX DATA (-), TRIB 5
EIA-422, TX CLKB (+), TRIB 5
EIA-422, TX CLKA (-), TRIB 5
EIA-422, CTSB (+), TRIB 5
EIA-422, CTSA (-), TRIB 5
GROUND
EIA-232, TX CLK, TRIB 4
EIA-232, TX DAT, TRI 4
EIA-232, CTS, TRIB 4
EIA-422, TX DATB (+), TRIB 4
EIA-422, TX DATA (-), TRIB 4
EIA-422, TX CLKB (+), TRIB 4
EIA-422, TX CLKA (-), TRIB 4
EIA-422, CTSB (+), TRIB 4
EIA-422, CTSA (-), TRIB 4
GROUND
EIA-232, TX CLK, TRIB 3
EIA-232, TX DAT, TRI 3
EIA-232, CTS, TRIB 3
EIA-422, TX DATB (+), TRIB 3
EIA-422, TX DATA (-), TRIB 3
EIA-422, TX CLKB (+), TRIB 3
EIA-422, TX CLKA (-), TRIB 3
EIA-422, CTSB (+), TRIB 3
EIA-422, CTSA (-), TRIB 3
GROUND
EIA-232, TX CLK, TRIB 2
EIA-232, TX DAT, TRI 2
EIA-232, CTS, TRIB 2
EIA-422, TX DATB (+), TRIB 2
EIA-422, TX DATA (-), TRIB 2
EIA-422, TX CLKB (+), TRIB 2
EIA-422, TX CLKA (-), TRIB 2
EIA-422, CTSB (+), TRIB 2
EIA-422, CTSA (-), TRIB 2
GROUND
EIA-232, TX CLK, TRIB 1
EIA-232, TX DAT, TRIB 1
EIA-232, CTS, TRIB 1
EIA-422, TX DATB (+), TRIB 1
EIA-422, TX DATA (-), TRIB 1
EIA-422, TX CLKB (+), TRIB 1
EIA-422, TX CLKA (-), TRIB 1
EIA-422, CTSB (+), TRIB 1
EIA-422, CTSA (-), TRIB 1
Rev. 3
SMS-301 Redundancy Switch
Theory of Operation
Table 4-13. Switch Control Interface (J16)
Pin No.
1
20
2
21
3
22
4
23
5
24
6
25
7
26
8
27
9
28
10
29
11
30
12
31
13
32
14
33
15
34
16
35
17
36
18
37
19
Rev. 3
Name
SCL
SDA
Spare 11
Spare 10
Spare 9
Spare 8
Spare 7
Spare 6
Spare 5
Spare 4
Spare 3
Spare 2
Spare 1
DMDONL
MODONL
/B_DF
/A_DF
/B_MF
/A_MF
ID_5
ID_4
ID_3
ID_2
ID_1
GND
GND
GND
GND
GND
-12V
-12V
+12V
+12V
+5V
+5V
+5V
+5V
Function
Serial Clock
Serial Data
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
Demod Online
Mod Online
Modem B Demod Fault
Modem A Demod Fault
Modem B Mod Fault
Modem A Mod Fault
Interface Board ID
Interface Board ID
Interface Board ID
Interface Board ID
Interface Board ID
Ground
Ground
Ground
Ground
Ground
-12VDC
-12VDC
+12VDC
+12VDC
+5VDC
+5VDC
+5VDC
+5VDC
4-11
Theory of Operation
SMS-301 Redundancy Switch
This page is intentionally left blank.
4-12
Rev. 3
5
Chapter 5.
MAINTENANCE
This chapter provides the following information:
•
•
5.1
Test Points and LEDs
Fault Isolation
Software Revisions
The installation of revised controller software may be necessary to implement additions
or enhanced features and/or corrective action. The control software resides in a
programmable device inside the one unit (1U) switch control chassis (AS/6051).
Rev. 3
5-1
Maintenance
SMS-301 Redundancy Switch
Remove and replace U30 and/or U32 on printed circuit assembly as follows:
When replacing the 1:1 switch software, the previous switch configuration
and loaded modem configurations will be lost.
CAUTIO N
1. Disconnect power supply from the 1:1 switch.
2. Disconnect and remove 1:1 switch from equipment rack.
3. Remove top cover fasteners and cover.
4. Remove and replace U30 and/or U32 on printed circuit assembly, AS/5950. U30
and U32 are socketed devices.
5. Replace cover and fasteners.
6. Position and reconnect the 1:1 switch in rack.
7. Reconnect power supply to the 1:1 switch.
8. Enter desired 1:1 switch configuration.
9. Load all modems from Load/Verify menu or remote terminal.
10. Resume Auto mode as required.
5-2
Rev. 3
SMS-301 Redundancy Switch
5.2
Maintenance
Test Points and LEDs
Test points and LEDs are included on the M&C board for quick troubleshooting
references. LEDs are visual references. Test points are used when additional
troubleshooting is required.
Refer to Table 5-1 for a list of LEDs and their functions.
Table 5-1. LED Functions
Function
Demodulator A On-line
Demodulator B On-line
Modulator A On-line
Modulator B On-line
Transmit Fault
Receive Fault
System Fault
Stored Fault
Power Supply 1
Power Supply 2
Auto Mode
Manual Mode
Rev. 3
Color
Green
Green
Green
Green
Red
Red
Red
Yellow
Green
Green
Green
Yellow
5-3
Maintenance
5.3
SMS-301 Redundancy Switch
Fault Isolation
System faults are reported in the Fault menu. Refer to Table 5-2 for guidelines to isolate
problems, and the appropriate action(s) to be taken.
Table 5-2. Fault Isolation, 1:1 Switch
Fault
Battery/Clock
+12 Volt Supply Fault
+5 Volt Supply Fault
Description
Corrupted non-volatile memory
detected after hard reset or
power-up.
Set when power supply
voltage(s) are out-of-tolerance.
Power Supply #1 Fault
Power Supply #2 Fault
Set when power supply
voltage(s) are out-of-tolerance.
Controller Fault
M&C controller error detected
on power-up.
Modem fails to respond to 1:1
switch commands on the
modem remote bus, J13.
Modem COM Link
Mod/Demod Verify Error
Module Fault
5-4
Results from inconsistencies
between configuration stored in
1:1 switch and configuration
reported by modem.
Internal I2C bus failure.
Action
1. Replace lithium backup battery.
2. Replace M&C board if fault still occurs
after battery replacement.
1. Check AC power cord.
2. Check for blown fuse(s) in AC entry
module.
3. Replace faulted power supply.
1. Check AC power cord.
2. Check for blown fuse(s) in AC entry
module.
3. Replace faulted power supply.
Replace M&C board.
1. Verify modem communications
parameters (including address
assignments) agree with 1:1 switch
configuration.
2. If single modem failure, check modem
connector and modem.
3. If complete modem failure, check 1:1
switch connector and remote cable.
Reload modem configuration from
Modem Control, Utility menu.
1. Replace M&C board.
2. If problems persists, replace connector
1:1 switch board.
Rev. 3
A
Appendix A.
REMOTE CONTROL OPERATION
This appendix describes the protocol and command structure for remote control and
status monitoring of the 1:1 Redundancy Switch.
•
•
A.1
Firmware number: FW/6055-1F and FW/6056
Software version: 1.1.7
General
Remote controls and status information are transferred via an EIA-485 (optional
EIA-232) serial communications link.
Commands and data are transferred on the remote control communications link as
US ASCII-encoded character strings.
The remote communications link is operated in a half-duplex mode.
Communications on the remote link are initiated by a remote controller or terminal. The
1:1 switch never transmits data on the link unless it is commanded to do so.
Command and status parameter selection will be determined by whether the backup
modem switching mode has been configured as Independent or Dependent. The 1:1
switch will default to Independent mode after a cold startup or hard reset has been
initiated.
Rev. 3
A-1
Remote Control Operation
A.2
SMS-301 Redundancy Switch
Message Structure
The ASCII character format used requires 11 bits/character:
•
•
•
•
7 information bits
2 stop bits
1 parity bit (Odd/Even)
1 start bit
Messages on the remote link fall into the categories of commands and responses.
Commands are messages which are transmitted to a switch, while responses are
messages returned by a switch in response to a command.
The general message structure is as follows:
•
•
•
•
A.2.1
Start Character
Device Address
Command/Response
End of Message Character
Start Character
A single character precedes all messages transmitted on the remote link. This character
flags the start of a message. This character is:
•
•
“<” for commands
“>” for responses
For any command that the 1:1 switch is passing through, an additional start character is
added to the beginning of the message. This informs the operator that this command was
a relayed command. This is true for the modem control link and the operator’s
communications link. In order for a command to be relayed through the 1:1 switch, the
address in the message must match the address that has been assigned to Modem A or
Modem B.
A-2
Rev. 3
SMS-301 Redundancy Switch
A.2.2
Remote Control Operation
Device Address
The device address is the address of the 1:1 switch which is designated to receive a
transmitted command, or which is responding to a command.
Valid device addresses are 1 to 3 characters long, and in the range of 1 to 255. Address 0
is reserved as a global address which simultaneously addresses all devices on a given
communications link. Devices do not acknowledge global commands.
Each 1:1 switch which is connected to a common remote communications link must be
assigned its own unique address. Addresses are software selectable at the modem, and
must be in the range of 1 to 255.
A.2.3
Command/Response
The command/response portion of the message contains a variable-length character
sequence which conveys command and response data.
If a 1:1 switch receives a message addressed to it which does not match the established
protocol or cannot be implemented, a negative acknowledgment message is sent in
response. This message is:
>add/?ER2_invalid
parameter'cr''lf']
(Error message for a recognized command which cannot be implemented
or has parameters which are out of range.)
>add/?ER3_unrecognizable
command'cr''lf']
(Error message for unrecognizable command or bad command syntax.)
>add/?ER4_modem in local
mode'cr''lf']
(Modem in local error; send the REM command to go to remote mode.)
>add/?ER5_hard coded
parameter'cr''lf']
(Error message indicating that the parameter is hardware dependent and may not be changed remotely.)
>add/?ER6_budy'cr''lf']
(Error message indicating that the command sent cannot be carried out because local processing is utilizing the
modem control bus.)
Rev. 3
A-3
Remote Control Operation
SMS-301 Redundancy Switch
The 1:1 switch does not respond to erred communications (i.e., parity and framing
errors.)
Note: “add” is used to indicate a valid 1 to 3 character device address in the range
between 1 and 255.
A.2.4
End Character
Each message is ended with a single character which signals the end of the message:
•
•
A-4
“cr”
“]”
Carriage return character for commands
End bracket for responses
Rev. 3
SMS-301 Redundancy Switch
A.3
Operational
Mode
Remote Control Operation
Configuration Commands/Responses
Command:
Response:
<add/MODE_xxxxxx'cr'
>add/MODE_xxxxxx'cr''lf']
Status:
Response:
<add/MODE_'cr'
>add/MODE_xxxxxx'cr''lf']
Set Online
Modulator
(Independent
Switching)
Command:
Response:
<add/MOL_x'cr'
>add/MOL_x'cr''lf']
Status:
Response:
<add/MOL_'cr'
>add/MOL_x'cr''lf]
Set Online
Demod
(Independent
Switching)
Command:
Response:
<add/DOL_x'cr'
>add/DOL_x'cr''lf']
Status:
Response:
<add/DOL_'cr'
>add/DOL_x'cr''lf]
Set Online
Modem
(Dependent
Switching)
Command:
Response:
<add/MOL_x'cr'
>add/MOL_x'cr''lf']
Status:
Response:
<add/MOL_'cr'
>add/MOL_x'cr''lf]
Command:
Response:
<add/MA_yyy'cr'
>add/MA_yyy'cr''lf']
Status:
Response:
<add/MA_'cr'
>add/MA_yyy'cr''lf']
Command:
Response:
<add/DA_yyy'cr'
>add/DA_yyy'cr''lf']
Status:
Response:
<add/DA_'cr'
>add/DA_yyy'cr''lf']
Command:
Response:
<add/SM_yyy'cr'
>add/SM_yyy'cr''lf']
Status:
Response:
<add/SM_'cr'
>add/SM_yyy'cr''lf']
Modem
Online
Delay
(Dependent
Switching)
Command:
Response:
<add/MD_yyy.y'cr'
>add/MD_yyy.y'cr''lf]
Status:
Response:
<add/MD_'cr'
>add/MD_yyy.y'cr''lf]
Modulator
Online
Delay
(Independent
Switching)
Command:
Response:
<add/MD_yyy.y'cr'
>add/MD_yyy.y'cr''lf]
Status:
Response:
<add/MD_'cr'
>add/MD_yyy.y'cr''lf]
Where: xxxxxx = AUTO or MANUAL.
This command selects the mode of operation for the SMS301.
Modulator's
Active
(Enable)
Demod
Active
(Enable)
Switching
Mode
Selection
Rev. 3
(See Note)
Notes:
1. If AUTO is selected, the Monitor and Control in the
SMS301 controls all switching decisions.
2. If MANUAL is selected, the operator controls all
switching decisions via the next 3 following commands.
Where: x = A or B (Modulator Online number).
This command puts the specified modulator online.
Note: Manual Mode Only.
(See Note)
Where: x = A or B (Demodulator Online number).
This command puts the specified demodulator online.
Note: Manual Mode Only.
(See Note)
Where: x = A or B (Modem Online number).
This command puts the specified modem online.
Note: Manual Mode Only.
(See Note)
Where: yyy = YES or NO.
Note: Manual Mode Only.
(See Note)
Where: yyy = YES or NO.
Note: Manual Mode Only.
(See Note)
Where: yyy = IND (Independent) or DEP (Dependent).
Note: Manual Mode Only.
Where: yyy.y = 0.0 to 127.0 seconds (in .5 second
increments).
Where: yyy.y = 0.0 to 127.0 seconds (in .5 second
increments).
A-5
Remote Control Operation
Demod
Online
Delay
(Independent
Switching)
A.4
Modem
Control
Baud Rate
SMS-301 Redundancy Switch
Command:
Response:
<add/DD_yyy.y'cr'
>add/DD_yyy.y'cr''lf]
Status:
Response:
<add/DD_'cr'
>add/DD_yyy.y'cr''lf]
Where: yyy.y = 0.0 to 127.0 seconds (in .5 second
increments).
Modem Communications Configuration Commands/Responses
Command:
Response:
<add/MBR_mmmmm'cr' (See Note)
>add/MBR_mmmmm'cr''lf']
Status:
Response:
<add/MBR_'cr'
>add/MBR_mmmmm'cr''lf']
Command:
Response:
<add/ADD_x_yyy'cr'
>add/ADD_x_yyy'cr''lf']
Status:
Response:
<add/ADD_x'cr'
>add/ADD_x_yyy'cr''lf']
Load
Modem
Config.
Command:
Response:
<add/LMC_x'cr'
>add/LMC_x'cr''lf']
Automatic
Verify
Enable
Command:
Response:
<add/AVE_xxx'cr'
>add/AVE_xxx'cr''lf']
Status:
Response:
<add/AVE_xxx'cr'
>add/AVE_xxx'cr''lf']
Modem
Address
Where: mmmmm = 9600 or 19200.
Note: Manual Mode Only.
Where:
x = A to B (modem number).
A-6
yyy = 0 to 255 (modem address, 0 puts modem out of
service).
(See Note)
Where: x = A or B (modem number).
Note: Manual Mode Only.
Where: xxx = ON (Enable) or OFF (Disable).
Rev. 3
SMS-301 Redundancy Switch
A.5
Time Of
Day
Date
Remote
Operation
Remote Control Operation
System Commands/Responses
Command:
Response:
<add/TIME_hh:mmxx'cr'
>add/TIME_hh:mmxx'cr''lf']
Status:
Response:
<add/TIME_'cr'
>add/TIME_hh:mmxx'cr''lf']
Command:
Response:
<add/DATE_mm/dd/yy'cr'
>add/DATE_mm/dd/yy'cr''lf']
Status:
Response:
<add/DATE_'cr'
>add/DATE_mm/dd/yy'cr''lf']
Command:
Response:
<add/REM_'cr'
>add/REM_'cr''lf']
Where:
hh = 1 to 12 (hours).
mm = 00 to 59 (minutes).
xx = AM or PM.
Where:
mm = 1 to 12 (month).
dd = 1 to 31 (day).
yy = 00 to 99 (year).
Configures the SMS301 for remote operation.
The SMS301 will respond to any status request at any time.
However, the SMS301 must be in 'Remote Mode' to change
configuration parameters remotely.
Clear
Stored
Faults
Command:
Response:
<add/CLSF_'cr'
>add/CLSF_'cr''lf']
This command is used to clear all stored faults logged by the
SMS301.
Power
Supply
Monitor
Command:
Response:
<add/PS_xxx'cr'
>add/PS_xxx'cr''lf']
Where: xxx = 1 (monitor power supply #1), 2 (monitor power
supply #2), 1&2 (monitor power supply #1 & #2).
Status:
Response:
<add/PS_'cr'
>add/PS_xxx'cr''lf']
Command:
Response:
<add/SMC_n'cr'
>add/SMC_n'cr''lf']
Save Switch
Config.
Where: n = 1, 2, 3, 4, or 5 (stored configuration number).
This command saves the current switch configuration for
recall at a later time using the "RMC_" command. Up to five
different switch configurations can be saved.
Recall
Switch
Config.
Rev. 3
Command:
Response:
<add/RMC_n'cr'
>add/RMC_n'cr''lf']
Where: n = 1, 2, 3, 4, or 5 (stored configuration number).
This command causes the switch to be reprogrammed with
configuration parameters previously saved using the "SMC_"
command. One of five saved configurations can be specified.
A-7
Remote Control Operation
A.6
Modulator
Config.
Status
SMS-301 Redundancy Switch
Status Commands/Responses
Command:
Response:
<add/MCS_'cr'
>add/MCS_'cr'
MODE_xxxxxx'cr'
SM_xxx'cr'
MA_yyy'cr'
MD_yyy.y'cr'
ADD_A_yyy'cr'
ADD_B_yyy'cr''lf']
Operation Mode
Switching Mode
Modulator's Active
Modulator/Modem Delay
A Modem Address
B Modem Address
The Modulator configuration status command causes a block
of data to be returned by the SMS301.
Note: *1* = dependent mode only, *2* = independent mode
only.
Demod
Config.
Status
Command:
Response:
<add/DCS_'cr'
>add/DCS_'cr'
MODE_xxxxxx'cr'
SM_xxx'cr'
DA_yyy'cr'
+ DD_yyy.y'cr'
# MD__yyy.y'cr'
ADD_A_yyy'cr'
ADD_B_yyy'cr''lf']
Operation Mode
Switching Mode
Demodulator's Active
Demodulator Delay
Modem Delay
A Modem Address
B Modem Address
The Demodulator configuration status command causes a
block of data to be returned by the SMS301.
+ Note: Status only returned in Independent Mode.
# Note: Status only returned in Dependent Mode.
Modulator
Status
Command:
Response:
<add/MS_'cr'
>add/MS_'cr'
MOD_A_xxx'cr'
MOD_B_xxx'cr''lf']
A Modulator Status (OK/FLT)
B Modulator Status (OK/FLT)
The Modulator status is returned as a block of data which
provides fault information of all 'active' Modulators.
Note: Response shown is for a system with all possible
modulators active. Only active modulator status will be
reported.
Demod
Status
Command:
Response:
<add/DS_'cr'
>add/DS_'cr'
DMD_A_xxx'cr'
DMD_B_xxx'cr''lf']
A Demodulator Status (OK/FLT)
B Demodulator Status (OK/FLT)
The Demodulator status is returned as a block of data which
provides fault information of all 'active' Demodulators.
Note: Response shown is for a system with all possible
demodulators active. Only active modulator status will be
reported.
A-8
Rev. 3
SMS-301 Redundancy Switch
A.7
Fault Summary Status Commands/Responses
Operational
Faults
Status
Command:
Response:
System
Fault Status
Summary
Command:
Response:
Rev. 3
Remote Control Operation
<add/OFS_'cr'
>add/OFS_'cr'
MOD_xxx'cr'
DMD_xxx'cr'
SFLT_xx'cr''lf']
TX Operational Status (OK/FLT)
RX Operational Status (OK/FLT)
Number of Stored Faults Logged (0 to 10)
<add/SFS_'cr'
>add/SFS_'cr'
M&C_xxx'cr'
INT_xxx'cr'
BAT_xxx'cr'
+5_xxx'cr'
+12_xxx'cr'
PS1_xxx'cr'
PS2_xxx'cr'
COM_xxx'cr'
MVFY_xxx'cr'
DVFY_xxx'cr'
SFLT_xx'cr''lf']
Monitor & Control Module (OK/FLT)
Data Interface/Overhead Module (OK/FLT)
Battery/Clock (OK/FLT)
+5V Power Supply (OK/FLT)
+12V Power Supply (OK/FLT)
Power Supply #1 (OK/FLT)
Power Supply #2 (OK/FLT)
Modem Communications (OK/FLT)
Mod Config Verify (OK/FLT)
Demod Config Verify (OK/FLT)
Number of stored faults logged (0 to 10)
A-9
Remote Control Operation
A.8
SMS-301 Redundancy Switch
Stored Faults
Information on stored faults is returned when requested. If no stored fault exists for a
given fault number, the words “NO Fault” will be returned instead of the normal
time/date status information.
The following symbols are commonly used to define the stored faults status commands:
•
•
•
•
•
•
•
Operational
Stored
Faults
Command:
Response:
System
Stored
Faults
Command:
Response:
A-10
#
hh
mm
ss
MM
DD
YY
Fault number (0 to 9). “0” is the first fault stored.
Hours in 24-hr. format.
Minutes.
Seconds.
Month.
Day.
Year.
<add/OSF_#'cr'
>add/OSF_# hh:mm:ss MM/DD/YY'cr'
MOD_xxx'cr'
DMD_xxx'cr''lf']
TX Operational Status (OK/FLT)
RX Operational Status (OK/FLT)
<add/SSF_#'cr'
>add/SSF_# hh:mm:ss MM/DD/YY'cr'
M&C_xxx'cr'
INT_xxx'cr'
BAT_xxx'cr'
+5_xxx'cr'
+12_xxx'cr'
PS1_xxx'cr'
PS2_xxx'cr'
COM_xxx'cr'
MVFY_xxx'cr'
DVFY_xxx'cr''lf']
Monitor & Control Module (OK/FLT)
Data Interface/Overhead Module (OK/FLT)
Battery/Clock (OK/FLT)
+5V Power Supply (OK/FLT)
+12V Power Supply (OK/FLT)
Power Supply #1 (OK/FLT)
Power Supply #2 (OK/FLT)
Modem Communications (OK/FLT)
Mod Config Verify (OK/FLT)
Demod Config Verify (OK/FLT)
Rev. 3
SMS-301 Redundancy Switch
Bulk
Consol.
Status
Command:
Response:
<add/BCS_'cr'
>add/BCS_p1,p2,p3, . . . pn'cr''lf']
Remote Control Operation
This command causes bulk switch status to be returned.
To reduce the length of the response, message parameter
data are returned without identifiers. However, parameter
identification can be determined by order of return. Each
status parameter is terminated with a ',' (comma) except
for the last parameter which has the standard message
termination sequence ('cr''lf']). Most of the data returned is
formatted the same way as the single command status
request (refer to the appropriate portions of this document
in preceding sections). Additional configuration status of
new options and features will always be appended to the
end.
Where 'pn' is the last parameter returned.
Parameter
Number
1
Parameter Name
(Command Reference)
Operation Mode
(ref. "MODE_" command).
Description
p1 = n, where 'n' is '0' (MANUAL), '1' (AUTO).
2
Switching Mode
(ref. "SM_" command).
p2 = n, where 'n' is '0' (INDEPENDENT), '1'
(DEPENDENT).
3
Modulator's Active
(ref. "MA_" command).
p3 = n, where 'n' is '0' (DISABLED), '1' (ENABLED).
Demodulator's Active
(ref. "DA_" command).
p4 = n, where 'n' is '0' (DISABLED), '1' (ENABLED).
Modulator/Modem Delay
(ref. "MD_" command).
p5 = nnn.n, delay in seconds.
Demodulator Delay
(ref. "DD_" command).
p6 = nnn.n, delay in seconds.
4
5
6
7
8
9
10
11
12
13
14
Rev. 3
Power Supply Monitor
(ref. "PS_" command).
p7 = n, where 'n' is '0' for Supply #1, '1' for Supply #2, and
'2' for supply #1 and #2.
Modem A Address
(ref. "ADD_A" command).
p8 = nnn, 0 to 255 is the Modem A address.
Modem B Address
(ref. "ADD_B" command).
p9 = nnn, 0 to 255 is the Modem B address.
MODEM REMOTE/LOCAL mode.
p10 = n, where 'n' is '0' (LOCAL), '1' (REMOTE).
Auto verify mode.
(ref. "AVE_" command).
p11 = n, where 'n' is '0 (DISABLED), '1' (ENABLED).
Modem Control Baud Rate
(ref. MBR_command).
p12 = n, where 'n' is '0' (9600), '1' (19200).
Modulator/Modem Online
(ref. "MOL_" command).
p13 = n, where 'n' is '0' (Mod A), '1' (Mod B).
Demodulator Online
(ref. "DOL_" command).
p14 = n, where 'n' is '0' (Demod), '1' (Demod B). (Note this
command will always respond with the current demod
status.)
A-11
Remote Control Operation
Equipment
Type
Command:
Response:
SMS-301 Redundancy Switch
<add/ET_'cr'
>add/ET_tttttttt_xxx.yyy.zzz'cr''lf']
Where:
tttttttt = Equipment Type.
xxx.yyy.zzz = Software Version number (0.0.0 to
999.999.999).
This command returns the equipment type and the
software version of the addressed device.
Monitor &
Control
Firmware
Information
Command:
Response:
<add/MCFI_'cr'
>add/MCFI_'cr'
VER_xxx.yyy.zzz'cr'
FW/nnnnnn-ddr'cr'
mm/dd/yy'cr''lf']
Where:
xxx.yyy.zzz = Software version number (0.0.0 to
999.999.999).
nnnnnn = Firmware number (0 to 999999).
dd = Firmware dash number (0 to 99).
r = Firmware revision (-, or A to Z).
Boot M&C
Firmware
Information
Command:
Response:
<add/BFI_'cr'
>add/BFI_'cr'
VER_xxx.yyy.zzz'cr'
FW/nnnnnn-ddr'cr'
mm/dd/yy'cr''lf']
Where:
xxx.yyy.zzz = Software version number (0.0.0 to
999.999.999).
nnnnnn = Firmware number (0 to 999999).
dd = Firmware dash number (0 to 99).
r = Firmware revision (-, or A to Z).
A-12
Rev. 3
B
Appendix B.
SDM-300/-300A SYSTEM
INSTALLATION
This appendix describes the system installation for the following configurations:
•
•
•
•
•
B.1
25-pin, EIA-422/-530, EIA-232, V.35, G.703
34-pin, EIA-422/-449, V.35, G.703
37-pin, EIA-422/-449, LVDS-DVB, V.35, G.703
50-pin, ASYNC, IBS, IDR, D&I
100-pin, RS-301 Switch
System Installation
The system installation can vary for 25-pin to 100-pin configurations. This manual will
not describe the possible installation of mixed data interfaces. However, any problem
arising from the installation should be addressed to Comtech EFData Customer Support
department.
Rev. 3
B–1
SDM-300/-300A System Installation
B.1.1
SMS-301 Redundancy Switch
System Installation (Standard Configuration)
Refer to Table B-1 for cable assemblies applicable to the standard configuration.
Table B-1. Standard Configuration Cabling
Item No.
1A
1B
1C
1D
Part No.
PL/3588
PL/0725
PL/0730
PL/0737-4 (PL/5665-4)
PL/0737-6 (PL/5665-8)
PL/0737-8 (PL/566-12)
Description
Data Cable, 25-pin
Data Cable, 34-pin
Data Cable, 37-pin
Data Cable, 50-pin, 4 feet
Data Cable, 50-pin, 8 feet
Data Cable, 50-pin 8 feet
Notes:
1.
2
3
4
PL/0813-4
PL/0813-8
PL/6239
PL/6051-1
Data Cable, 50-pin is available with right angle
connector, PL/0737R-X.
2.
Data Cable, 50-pion is available with ECL
interface, PL/4807-X.
BNC Cable, 48.0 ± 1.5 inches (length)
BNC Cable, 96.0 ± 3.0 inches (length)
Cable Assy, Remote Control with Termination
Power Cable Assemblies
Note: Alternate part is provided in parenthesis.
Refer to Figure B-1 for cabling the standard configuration.
1. Mount the SMS-301 1:1 switch in a standard equipment rack. Secure with four
bolts.
2. Connect the data interface connector (Figure B-1) as follows:
a. Connect the “COMM” data interface connector (J1) to the customerfurnished equipment, using a customer-furnished cable assembly.
b. Connect the “A” data interface connector (J2) to the prime modulator Data
I/O interface connector, using applicable data cable listed in Table B-1,
items 1A through 1D.
c. Connect “B” data interface connector (J3) to the backup modulator data I/O
interface connector using applicable data cable listed in Table B-1, items 1A
through 1D.
3. Connect REMOTE connector at the prime modulator, bacvkup modulatotr, to the
COMM connector at the 1:1 switch, using PL/6239 cable assembly. Connect to
customer-furnished equipment.
B–2
Rev. 3
SMS-301 Redundancy Switch
SDM-300/-300A System Installation
S E LE C T IT E M 1A T H R O U G H 1D
EX RE F
J9
AUX 1
J6
REMOTE
FAULT
J7
RX/IF INPUT
CP 3
AL ARMS
J10
TX /IF O U T P U T
CP2
CP 1
3
2
2
3
J6
REMOTE
S E LE C T IT E M 1A T H R O U G H 1D
EX RE F
J9
AUX 1
FAULT
J7
RX/IF INPUT
CP 3
ALARM S
J10
T X /IF O U T P UT
CP2
CP 1
2
2
To
C U ST O M E R ’S
E Q U IP M EN T
C U ST O M E R F U R N ISH ED
To
C U ST O M E R ’S
E Q U IP M EN T
3
2
2
2
DEM O D
J9
A
MOD
J8
RX IF
J7
B
J4
TX IF
J5
A
2
2
J6
B
!
100 TO 240V
1.5 A 50 TO 60 Hz
J14
AC2
STATUS/FAU LT S
J12
T2A , 250V
AC1
J11
4
4
J10
REM O TE
CO NTR OL
M O DEM
CO M
J13
2
To
POW ER
S U P P LY
U P C O N VE RTE R
2
D O W N C O N VE RTE R
2
Figure B-1. System Installation (Standard Configuration)
Rev. 3
B–3
SDM-300/-300A System Installation
SMS-301 Redundancy Switch
4. Connect MOD side of 1:1 switch as follows:
a. Connect “TX IF” connector (J4) to IF IN connector (J7) on the rear
panel of the up converter, using Cable PL/0813-X.
b. Connect the “A” connector (J5) to the prime modulator TX IF OUT
connector (CP1), using Cable PL/0813-X.
c. Connect the “B” connector (J6) to the backup modulator TX IF OUT
connector (CP1), using Cable PL/0813-X.
5. Connect DEMOD side of 1:1 switch as follows:
a. Connect the “B” connector (J7) to the backup modulator “RX IF IN”
connector (CP2), using Cable PL/0813-X.
b. Connect “RX IF” connector (J8) to the down converter ‘IF OUT”
connector (J7), using Cable PL/0813-X.
c. Connect the “A” connector (J9) to the prime modulator “RX IF IN”
connector (CP2), using Cable PL/0813-X.
6. Connect AC power to AC1 (J11) and AC2 (J12) with power cables PL/6051-1.
a. If two AC power sources are available, connect AC1 and the prime
modulator to one AC source and AC2 and the backup modulator to the
other AC source.
b. If the DC power option is used, connect the DC voltage to the terminal
blocks is a similar manner.
B–4
Rev. 3
SMS-301 Redundancy Switch
B.1.2
SDM-300/-300A System Installation
System Installation (RS-301 Switch Installed)
After unpacking the 1:1 switch and the RS-301 Remote Switch, refer to Table B-2 and
the following instructions.
Table B-2. RS-301 Configuration Cabling
Item No.
1
2
3
4
B.1.3
Part No.
PL/CA90101G100-4
PL/0813-4
PL/0813-8
PL/6239
PL/6051-1
Description
Data Cable, 100-pin
BNC Cable, 48.0 ± 1.5 inches (length)
BNC Cable, 96.0 ± 3.0 inches (length)
Cable Assy, Remote Control with Termination
Power Cable Assemblies
Connect System Installation with RS-301 Switch
Refer to Figure B-2 for cabling with the RS-301 Switch installed.
1. Mount the 1:1 switch in a standard equipment rack with four bolts.
2. Mount the remote switch (RS-301) in the same rack using four bolts.
3. Connect the Data I/O interface as follows:
a. Connect the “RREMOTE SWITCH CONTROL” connector (J1) to the
“SWITCH CONTROL INTERFACE” connector (J16) on the RS–301
switch, using cabling PL/CA90101G100-4.
b. Connect the ‘MODEM A DATA” connectopr (J14) on the RS-301 switch to
the prime modulator Data I/O connector, using Cable PL/CA90101G100-4
c. Connect the “MODEM B DATA” connector (J15) on the remote switch to
the backup modulator Data connector, using Cabling PL/90101G100-4.
4. Connect the MOD side of the 1:1 switch as follows:
a. Connect the “TX IF” BNC connector (J4) in the 1:1 switch rear panel to the
top converter IF IN (J7), using Cable PL/0813-X.
b. Connect the “A” BNC connector (J5) to the prime modem “TX IF OUT”
(CP1), using Cable PL/0813-X.
c. Connect the “B” BNC connector (J6) to the backup modem “TX IF OUT”
(CP1), using Cable PL/0813-X.
Rev. 3
B–5
SDM-300/-300A System Installation
SMS-301 Redundancy Switch
1
S E LE C T IT E M 1 A T H R O U G H 1 D
J6
R EMO TE
EX RE F
J9
AU X 1
FAULT
J7
RX/IF INPUT
CP 3
AL A RM S
J1 0
T X /IF O U TP UT
CP2
CP1
3
2
2
3
1
J6
REMOTE
S E LE C T IT E M 1 A T H R O U G H 1 D
EX RE F
J9
AUX 1
FAULT
J7
R X/IF IN PUT
CP 3
AL ARM S
J 10
T X /I F O U T P U T
CP2
CP1
2
2
3
2
2
2
DEM O D
J9
A
M OD
J8
RX IF
J7
B
J4
TX IF
J5
A
2
2
J6
B
!
100 TO 240V
1.5 A 50 TO 60 H z
J14
AC2
STATU S/FA ULTS
J12
T2A, 250V
AC1
J11
4
4
J10
REM O TE
CO NTROL
M ODE M
CO M
J13
1
2
To
POW ER
S U PP LY
To
C U S TO M ER ’S
E Q U IPM E N T
1
SW IT CH CONTROL INTERFACE
M ODEM A DATA
M ODEM B DATA
J14
J15
J16
R S -3 0 1 F R O N T PA N E L
1
2
2
D OW N C O NVERTER
TR IB 1 D ATA
TR IB 2 D ATA
TR IB 3 D ATA
TR IB 4 D ATA
TR IB 5 D ATA
TR IB 6 D ATA
TR IB 7 D ATA
TR IB 8 D ATA
AUX
J1
J2
J3
J4
J5
J6
J7
J8
J9
R S -301
To
C U S TO M ER ’S
E Q U IPM E N T
3
Figure B-2. System Installation (RS-301 Installed)
B–6
Rev. 3
SMS-301 Redundancy Switch
SDM-300/-300A System Installation
5. Connect the DEMOD side of the 1:1 switch as follows:
a. Connect the “RX IF” BNC connector (J8) to the down converter “IF OUT”
(J7), using Cable PL/0813-X.
b. Connect the “A” BNC connector (J9) to the prime modem “RX IF IN” ,
using Cable PL/0813-X.
c. Connect the “B” BNC (J7) to the backup modem “RX IF IN”, using Cable
PL/ 0813-X.
6. Connect the customer-equipment (as required) to the remote switch
“TRIBUTARY’ cuonnectors, using Cable PL/6239.
7. Connect AC power to AC1 (J11) and AC2 (J12) with power cable assemblies
PL/6051-1.
a. If two AC power sources are availble, connect AC1 and the prime modem to
one AC source, and AC2 and the backup modem to the other AC source.
b. If the DC power option is used, connect the DC voltage to the terminal
blocks in a similar manner.
8. Connect the remote terminal to the “REMOTE CONTROL” (J10) connector,
REMOTE (J6) on the priome modulator and REMOTE (J6) on the backup
modulator using Cable PL/6239.
Rev. 3
B–7
SDM-300/-300A System Installation
SMS-301 Redundancy Switch
This page is intentionally left blank.
B–8
Rev. 3
C
Appendix C.
SDM-2020 System
Installations
This appendix describes the installation options available for the SMS-301 1:1 Switch
and the SDM-2020 Satellite Modulator.
C.1
Installation Options
C.1.1
Connect Low Voltage Differential Signal Interface (Optional)
Note: The section defines the requirements of the Low Voltage Differential Signal
(LVDS) data interface for video and high-speed data applications used with the
SDM-2020 Satellite Modulator.
C.1.1.1
Description
The 1:1 switch LDVS interface is a plug-in module that interfaces with the SDM-2020
Satellite Modulator. The interface uses serial and parallel clock and data formats, where
as the SDM-2020 LVDS and Digital Video Broadcast (DVB) interfaces are either serial
or parallel format. The difference between the LVDS and DVB (EIA-422) interfaces are
the drivers and receivers.
Rev. 3
•
Parallel format: The interface is a DVB 8 bit parallel synchronous (LVDS) or
EIA-422 (DVB).
•
Serial format: MSB (Data 7) is used for serial data and clock.
C–1
SDM-2020 System Installation
SMS-301 Redundancy Switch
The interface operates to the specifications described in Table C-1.
Table C-1. LVDS/DVB Specifications
Interface Type
Data Rate
Serial
Parallel
Connectors
Electrical Properties
Signal Types
C–2
General Specification
LVDS/DVB Synchronous
Serial/Parallel
EIA-422 DVB
1.5 to 32 Mbit/s
0.1875 to 12.5 Mbit/s
37-pin D female for TX and RX data
Per TIA/EIA-644
TX, TX Clock, TX Data, Data Valid, and SYNC per TM1449
Rev. 3
SMS-301 Redundancy Switch
C.1.1.2
SDM-2020 System Installation
Connect to SDM-2020 Modulator with LVDS Interface
Refer to Figure C-1.
1. Connect the “COMM” data interface connector (J1) to the DTE equipment.
Note: Equivalent cable shall be computer grade, 100Ω, incorporating twisted and
shielded pairs. Typical length shall be ≤ 16 feet (5 meters).
2. Connect the “A” data interface connector (J2) to the prime SDM-2020 Modulator
“TX IN” (J4) connector and “AUX” (J5) connector using Cable (CA/6217) or
equivalent.
3. Connect the “B” data interface connector (J3) to the backup SDM-2020
Modulator “TX IN” (J4) connector “AUX” (J5) connector using Cable
(CA/6217) or equivalent.
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
J4 TX IN
J3 R X O U T
J3
J4
J5 A U X
J5
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
J3 R X O U T
J4 TX IN
J5 A U X
CABLE (PL/6217)
J2 (A)
CABLE (PL/6217)
J3 (B)
SMS-301 1:1 REDUNDANCY SWITCH
(S TA N D A R D C O N F IG U R AT IO N )
Figure C-1. Connect to SDM-2020 Modulator with LVDS Interface
Rev. 3
C–3
SDM-2020 System Installation
C.1.2
SMS-301 Redundancy Switch
Connect to SDM-2020 Satellite Modulator with EIA-422 Interface
Note: The section defines the requirements of the EIA-422 data interface for video and
high-speed data applications used with the SDM-2020 Satellite Modulator. This interface
uses serial format only.
C.1.2.1
Description
The SMS-301 data interface is a plug-in module that interfaces with the SDM-2020
Satellite Modulator. The interface used EIA-530 serial format. Specifications are as
referenced herein:
•
EIA-422, Electrical Characteristics of Balanced Voltage Digital Interface
Circuits
•
EIA-530, High-Speed 25-Position Interface for data Circuit – Terminating
Equipment
The interface operates to the specifications described in Table C-1.
Table C-2. EIA-422/EIA-530 Specifications
Interface Type
Data Rate
Connectors
Electrical Properties
Signal Types
C–4
General Specification
EIA-422/EIA-530 Synchronous (Serial)
1.5 to 18 Mbit/s (Serial)
37-pin D female for serial data
Per EIA-422
SD, ST, TT, RS, CS, RD, RT, RR, (CD)
Rev. 3
SMS-301 Redundancy Switch
C.1.2.2
SDM-2020 System Installation
Connect to SDM-2020 Modulator with EIA-422 Interface
Refer to Figure C-2.
1. Connect the “COMM” data interface connector (J1) to the DTE equipment.
Note: Equivalent cable shall be computer grade, 100Ω, incorporating twisted and
shielded pairs. Typical length shall be ≤ 16 feet (5 meters).
2. Connect the “A” data interface connector (J2) to the prime SDM-2020 Modulator
“SERIAL” (J4) connector using Cable (CA/6679) or equivalent.
3. Connect the “B” data interface connector (J3) to the backup SDM-2020
Modulator “SERIAL” (J4) connector using Cable (CA/6679) or equivalent
Connection to SDM-2020 Satellite Modulator with EIA-422 (DVB) TX Interface
(18 Mbit/s Serial Data)
Note: The section defines the requirements of the EIA-422 (DVB) TX data
interface for video and high-speed data applications used with the SDM-2020
Satellite Modulator.
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
EIA -530
SE R IA L
J4
PA R A LLEL
J3
J4
J3
AUX
J5
J5
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
EIA -530
PA R A LLEL
J3
SE R IA L
J4
AUX
J5
CABLE (PL/6679)
CABLE (PL/6679)
J2 (A)
SMS-301 1:1 REDUNDANCY SWITCH
J3 (B)
(S TA N D A R D C O N F IG U R AT IO N )
Figure C-2. Connect to SDM-2020 Modulator with EIA-422 Interface
Rev. 3
C–5
SDM-2020 System Installation
SMS-301 Redundancy Switch
C.1.3
Connect to SDM-2020 Sateliite Modulator with EIA-422 DVB TX
Interface
C.1.3.1
Description
The SMS-301 data interface is a plug-in module that interfaces with the SDM-2020
Satellite Modulator. The maximum data rate is 18 Mbit/s for serial data.
The SDM-2020 Modulator configured with the EIA-422 data interface is identified as
follows:
•
Parallel Connector (J3) is used for DVB EIA-422 either parallel or serial data.
•
Serial connector (J3) is for (EIA-530) serial differential data operation.
Note: SDM-2020 Modulator with ASI/EIA-422 data interface can be configured using
the same instructions as the EIA-422 configuration.
The interface operates to the specifications described in Table C-1.
Table C-3. EIA-422/EIA-530 Specifications
Interface Type
Data Rate
Connectors
Electrical Properties
Signal Types
C–6
General Specification
EIA-422/EIA-530 Synchronous (Serial)
1.5 to 18 Mbit/s (Serial)
37-pin D female for serial data
Per EIA-422
SD, ST, TT, RS, CS, RD, RT, RR, (CD)
Rev. 3
SMS-301 Redundancy Switch
SDM-2020 System Installation
The cable pin assignments are specified in Table C-4.
Table C-4. Cable Pin Assignments (CA/6217)
SMS-301 (DB-37)
Pin #
19
37
34
15
33
14
32
13
31
12
30
11
29
10
28
9
27
8
26
7
25
6
1
21
2
22
3
C.1.3.2
Name
CLK-A
CLK-B
SYNC-A
SYNC-B
VAL-A
VAL-B
DAT7-A
DAT7-B
DAT6-A
DAT6-B
DAT5-A
DAT5-B
DAT4-A
DAT4-B
DAT3-A
DAT3-B
DAT2-A
DAT2-B
DAT1-A
DAT1-B
DAT0-A
DAT0-B
SG
REFCLK-A
REFCLK-B
DF
MF
Signal Function
Master Clock
(TT Serial)
Synchronized
Data Valid
Data Bit 7
(Serial Data Bit)
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0
Signal Ground
Reference Clock
(ST Serial)
DEMOD Fault
MOD Fault
SDM-2020M DVB
Parallel or Serial
(J3 DB 25 EIA-422)
1
14
12
25
11
24
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
13
15 Reference Clock or
2 Ground
AUX (J5) Pin 2 DB 9
AUX (J5) Pin 6 DB 9
Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface
Refer to Figure C-3.
1. Connect the “COMM” data interface connector (J1) to the DTE equipment.
Note: Equivalent cable shall be computer grade, 100Ω, incorporating twisted and
shielded pairs. Typical length shall be ≤ 16 feet (5 meters).
2. Connect the “A” data interface connector (J2) to the prime SDM-2020 Modulator
“SERIAL” (J4) connector and “AUX” (J5) connector using Cable (CA/6217) or
equivalent.
3. Connect the “B” data interface connector (J3) to the backup SDM-2020
Modulator “SERIAL” (J4) connector and “AUX” (J5) connector using Cable
(CA/6217) or equivalent
Rev. 3
C–7
SDM-2020 System Installation
SMS-301 Redundancy Switch
S D M -2 0 2 0 S AT E L L IT E M O D U L AT O R
EIA -530
SER IAL
J4
PAR A LLEL
J3
J3
J4
A UX
J5
J5
S D M -2 0 2 0 S AT E L L IT E M O D U L AT O R
EIA -530
PAR A LLEL
J3
SER IAL
J4
A UX
J5
CABLE (PL/6217)
CABLE (PL/6217)
J2 (A)
J3 (B)
SMS-301 1:1 REDUNDANCY SWITCH
(S TA N D A R D C O N F IG U R AT IO N )
1 8 M bit/s F or S erial D a ta
Figure C-3. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface
(18 Mbit/s Serial Data)
C–8
Rev. 3
SMS-301 Redundancy Switch
C.1.4
SDM-2020 System Installation
Connect to SDM-2020 Satellite Modulator with EIA-422 (DVB) TX
Interface (100 Mbit/s Parallel Data)
Note: The section defines the requirements of the EIA-422 (DVB) TX data interface for
video and high-speed data applications used with the SDM-2020 Satellite Modulator.
C.1.4.1
Description
The SMS-301 data interface is a plug-in module that interfaces with the SDM-2020
Satellite Modulator. The maximum data rate is 100 Mbit/s for parallel data.
The SDM-2020 Modulator configured with the EIA-422 data interface is identified as
follows:
•
Parallel Connector (J3) is used for DVB EIA-422 either parallel or serial data.
•
Serial connector (J3) is for (EIA-530) serial differential data operation.
Note: SDM-2020 Modulator with ASI/EIA-422 data interface can be configured using
the same instructions as the EIA-422 configuration.
Rev. 3
C–9
SDM-2020 System Installation
SMS-301 Redundancy Switch
The cable pin assignments are specified in Table C-5.
Table C-5. Cable Pin Assignments (CA/6217)
SMS-301 (DB-37)
Pin #
19
37
34
15
33
14
32
13
31
12
30
11
29
10
28
9
27
8
26
7
25
6
1
21
2
22
3
C.1.4.2
Name
CLK-A
CLK-B
SYNC-A
SYNC-B
VAL-A
VAL-B
DAT7-A
DAT7-B
DAT6-A
DAT6-B
DAT5-A
DAT5-B
DAT4-A
DAT4-B
DAT3-A
DAT3-B
DAT2-A
DAT2-B
DAT1-A
DAT1-B
DAT0-A
DAT0-B
SG
REFCLK-A
REFCLK-B
DF
MF
Signal Function
Master Clock
(TT Serial)
Synchronized
Data Valid
Data Bit 7
(Serial Data Bit)
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0
Signal Ground
Reference Clock
(ST Serial)
DEMOD Fault
MOD Fault
SDM-2020M DVB
Parallel or Serial
(J3 DB 25 EIA-422)
1
14
12
25
11
24
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
13
15 Reference Clock or
2 Ground
AUX (J5) Pin 2 DB 9
AUX (J5) Pin 6 DB 9
Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface
Refer to Figure C-4.
1. Connect the “COMM” data interface connector (J1) to the DTE equipment.
Note: Equivalent cable shall be computer grade, 100Ω, incorporating twisted and
shielded pairs. Typical length shall be ≤ 16 feet (5 meters).
2. Connect the “A” data interface connector (J2) to the prime SDM-2020 Modulator
“PARALLEL” (J4) connector and “AUX” (J5) connector using Cable (CA/6217)
or equivalent.
3. Connect the “B” data interface connector (J3) to the backup SDM-2020
Modulator “PARALLEL” (J4) connector and “AUX” (J5) connector using Cable
(CA/6217) or equivalent
C–10
Rev. 3
SMS-301 Redundancy Switch
SDM-2020 System Installation
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
EIA -530
SE R IA L
J4
PA R A LLEL
J3
J3
J4
AUX
J5
J5
S D M -20 2 0 S AT E L L ITE M O D U L ATO R
EIA -530
PA R A LLEL
J3
SE R IA L
J4
AUX
J5
CABLE (PL/6217)
CABLE (PL/6217)
J2 (A)
J3 (B)
SMS-301 1:1 REDUNDANCY SWITCH
(S TA N D A R D C O N F IG U R AT IO N )
1 00 M b it/s F o r P a ralle l D a ta
Figure C-4. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface
(100 Mbit/s Parallel Data)
Rev. 3
C–11
SDM-2020 System Installation
C.1.5
SMS-301 Redundancy Switch
Connect to SDM-2020 Satellite Modulator I/O Connector,
25-Pin Interface
Note: The section defines the requirements of the I/O 25-pin data interface for video and
high-speed data applications used with the SDM-2020 Satellite Modulator. This interface
uses serial format only.
C.1.5.1
Description
The SMS-301 data interface is a plug-in module that interfaces with the SDM-2020
Satellite Modulator. The interface used EIA-530 serial format
Refer to Table C-6 for the cable pin assignments.
Table C-6. Pin Assignments, 25-Pin
SMS-301 DB25 Connector
Pin #
Name
24
TT-A
11
TT-B
2
SD-A
14
SD-B
1
SG
15
ST-A
12
ST-B
21
DF
25
MF
C.1.5.2
SDM-2020 EIA-530
Serial (J4) DB 25
24
TT-A
11
TT-B
2
SD-A
14
SD-B
1
SG
15
ST-A
12
ST-B
21
DF
25
MF
Connect to SDM-2020 Modulator with I/O Connector, 25-Pin
Interface
Refer to Figure C-5.
1. Connect the “COMM” data interface connector (J1) to the DTE equipment.
Note: Equivalent cable shall be computer grade, 100Ω, incorporating twisted and
shielded pairs. Typical length shall be ≤ 16 feet (5 meters).
2. Connect the “A” data interface connector (J2) to the prime SDM-2020 Modulator
“SERIAL” (J4) connector using Cable (CA/3588) or equivalent.
3. Connect the “B” data interface connector (J3) to the backup SDM-2020
Modulator “SERIAL” (J4) connector using Cable (CA/3588) or equivalent
C–12
Rev. 3
SMS-301 Redundancy Switch
SDM-2020 System Installation
S D M -2 02 0 S AT E L LIT E M O D U L ATO R
EIA -530
SER IAL
J4
PA R AL L EL
J3
J3
J4
A UX
J5
J5
S D M -2 02 0 S AT E L LIT E M O D U L ATO R
EIA -530
PA R AL L EL
J3
A UX
J5
SER IAL
J4
C A BLE (PL/3588)
C A BLE (PL/3588)
J2 (A )
J3 (B )
SMS-301 1:1 REDUNDANCY SWITCH
(S TA N D A R D C O N FIG U R AT IO N )
Figure C-5. Connect to SDM-2020 Modulator with I/O Connector, 25-Pin Interface
Rev. 3
C–13
SDM-2020 System Installation
SMS-301 Redundancy Switch
This page is intentionally left blank.
C–14
Rev. 3
G
Glossary
The following is a list of acronyms and abbreviations that may be found in this manual:
Acronym/
Abbreviation
Ω
@
A
AC
Al
ASCII
ASYNC
AUX
bit/s
BW
C
CLK
CLR
cm
COM
COMM
cr
CS or CTS
D&I
dB
D/C
DC
DD
DF
DAT
Demod
DEMUX
DM
DMDONL
DTE
Rev. 3
Definition
Ohms
at
Ampere
Alternating Current
Alarm
American Standard Code for Information Interchange
Asynchronous
Auxiliary
bits per second
Backward Alarm or Bandwidth
Celsius
Clock
Clear
Centimeters
Common
Communication
Carriage Return
Clear to Send
Drop and Insert
Decibels
Down Converter
Direct Current
Day
DEMOD Fault
Data Bit
Demodulator
Demultiplexer
Data Mode
Demodulator On-Line
Data Terminal Equipment
g–1
Glossary
SMS-301 Redundancy Switch
DVB
EFD
EIA
EXC
EXT
F
FW
GND
Hz
I/O
IBS
IDR
IESS
IF
kbit/s
LCD
LED
lf
LVDS
m
M&C
mA
Max
Mbit/s
MC
MF
Mod
MODONL
MUX
NC
PL
PWR
RAM
RD
REF
RF
RMA
RR
RS
RT
RTS
RX
RXCLK
RXD
RZ
s
SCR
SCT
SCTE
SD or SDA
SG
SLC
SMS
ST
Sub
g–2
Digital Video Broadcast
EFData Compatible
Electronic Industries Association
External Clock
External Reference Clock
Fahrenheit
Firmware
Ground
Hertz (cycle per second)
Input/Output
INTELSAT Business Services
Intermediate Data Rate
INTELSAT Earth Station Standards
Intermediate Frequency
Kilobits per second (103 bits per second)
Liquid Crystal Display
Light-Emitting Diode
Line Feed
Low Voltage Differential Signal
mille (10-3)
Monitor and Control
Milliamperes
Maximum
Megabits per second
Monitor and Control or Master Clock
Modulator Fault
Modulator
Modulator On-Line
Multiplexer
No Connection or Normally Closed
Parts List
Power
Random Access Memory
Receive Data
Reference
Radio Frequency
Return Material Authorization
Receiver Ready
Ready to Send, Recommended Standard, or Reed-Solomon
Receive Timing
Request to Send
Receive (Receiver)
Receive Clock
Receive Data
Return-to-Zero
Second
Serial Clock Receive
Serial Clock Transmit
Serial Clock Transmit External
Send Data
Signal Ground
Serial Clock
Satellite Multiservice System
Send Timing
Subminiature
Rev. 3
SMS-301 Redundancy Switch
SW
SYNC
TP
TT
TX
TXCLK
TXD
TXO
U/C
US(A)
V
VAC
VDC
Ver
W
YY
Rev. 3
Glossary
Switch
Synchronize
Test Point
Terminal Timing
Transmit (Transmitter)
Transmit Clock
Transmit Data
TX Octet
Up converter
United States (of America)
Volts
Volts, Alternating Current
Volts, Direct Current
Version
Watt
Year
g–3
Glossary
SMS-301 Redundancy Switch
This page is intentionally left blank.
g–4
Rev. 3
I
AC Power (J11 and J12), 2–15
Board List, 2–15, 3-4
Command/Response, 1–4
Configuration Commands/Responses, 1–2, 1–7, 3-1, 3-2,
3-3, 3-5, 3-7, 3-10, 3-11, 3-12, 3-13, 3-15, 3-16, 3-28,
A-2, A-3
Configuration Recall Menu, A-5, A-6
Configuration Save Menu, 3-16
Configuration Switch Control Menu, 3-15
Configuration System Menu, 3-10, 3-11
Connect SMS-301 Switch to SDM-2020 Modulator with
I/O Connector, 25-Pin Interface, 2–21
Connect SMS-301 Switch to SDM-2020 Modulator with
RS-422 DVB TX Interface, 2–19, 3-12, 3-13
Connect to SDM-2020 Modulator with LVDS Interface,
2–28
Connect to SDM-2020 Satellite Modulator I/O Connector,
25-Pin Interface, 2–23, 2–26
Connect to SDM-2020 Satellite Modulator with RS-422
(DVB) TX Interface (18 Mbit/s Serial Data), 2–20
Connection to SDM-2020 Satellite Modulator I/O
Connector, 25-Pin Interface, 2–23, 2–26
Connection to SDM-2020 Satellite Modulator with Low
Voltage Differential Signal Interface (Optional), 2–20
Connection to SDM-2020 Satellite Modulator with
EIA-422 (DVB) TX Interface (100 Mbit/s Parallel
Data), 2–21
Data I/O (J1, J2, J3), 37-Pin (PL/5952), 4-4
Data I/O Connector (J1, J2, J3) 37-Pin (PL/6201-2), 2–9
Data I/O Connector (J1, J2, J3), 25-Pin (PL/6026), 2–10,
4-3
Data I/O Connector (J1, J2, J3), 37-Pin (PL/5952), 2–8
Data I/O Connector (J1, J2, J3), 50-Pin (PL/5951), 2–7
DC Power (J11 and J12) (Optional), 2–6
Description (Standard Configuration), 2–15
Description (With RS-301 Option), 1–2
Device Address, 1–3
Rev. 3
Index
EIA-422/-449, G.703, or V.35 (J1, J2, J3), 37-Pin
(PL/5952), A-2, A-3
EIA-422/DVB TX (J1, J2, J3), 25-Pin (PL/6026), 4-3
EIA-422/EIA-449/V.35, A-2, A-3
End Character, 4-4
Equipment Inspection, A-4
External Connections, A-4
Fault Isolation, 2–3
Fault Summary Status Commands/Responses, 5-1, 5-4
Faults/Alarms, A-9
Faults3-5, 3-5, 3-7, 3-18, 3-19, 3-20, 3-21
Front Panel, 3-5, 3-7, 3-18, 3-19, 3-20, 3-21
Front Panel Keypad, 1–5, 1–6, 3-1, 3-6, 3-9
Front Panel Menus, 3-6
Ground, 3-9
IBS, IDR, ASYNC, or D&I (J1, J2, J3), 50-Pin (PL/5951),
2–4, 2–5, 2–6, 2–7, 2–8, 2–17, 2–23, 2–26, 4-5, 4-6, 4-7,
4-8, 4-11
IF Connections
Transmit and Receive, 2–4, 2–5, 2–6, 2–8, 2–17, 4-3,
4-5, 4-6, 4-7, 4-8, 4-11
Installation Options, 2–17
Menu System, 4-3
Message Structure, 3-7
Modem Communications Configuration
Commands/Responses, A-2
Monitor Menu, 1–2, 4-1
Operation Mode, 3-17
Prime Power, 3-2, 3-5, A-8, A-11
Remote Switch (RS-301) Option, 2–14
Remote Switch Control (J1) (RS-301 Option), 4-5
RX IF Connectors (J7, J8, J9), 2–5
Setup and Configuration, 2–13
SMS-301 Data Interface, 3-2
Specifications, 5-1
Start Character, 5-1
Status Commands/Responses, A-2
i–1
Index
Status/Fault (J14), A-8
Stored Faults, 2–17
Stored Faults/Alarms, 2–17
Switch/Modem Communications Interface Connector
(J13), 3-7, 3-20, 3-21
System Commands/Responses, 2–16
System Installation (Standard Configuration), A-7
i–2
SMS-301 Redundancy Switch
Theory of Operation, 5-1, 5-3
Transmit IF Connectors (J4, J5, J6), 4-2
Unpacking, 2–13
Utility Modem Control, 2–1
Utility System, 3-3, 3-4, 3-5, 3-22, 3-23, 3-26, 3-27, 4-3,
4-4, 4-5
Rev. 3
METRIC CONVERSIONS
Units of Length
Unit
Centimeter
Inch
Foot
Yard
Mile
Meter
Kilometer
Millimeter
1 centimeter
—
0.3937
0.03281
0.01094
6.214 x 10-6
0.01
—
—
1 inch
2.540
—
0.08333
0.2778
1.578 x 10-5
0.254
—
25.4
1 foot
30.480
12.0
—
0.3333
1.893 x 10-4
0.3048
—
—
1 yard
91.44
36.0
3.0
—
5.679 x 10-4
0.9144
—
—
1 meter
100.0
39.37
3.281
1.094
6.214 x 10-4
—
—
—
1 mile
1.609 x 105
6.336 x 104
5.280 x 103
1.760 x 103
—
1.609 x 103
1.609
—
1 mm
—
0.03937
—
—
—
—
—
—
1 kilometer
—
—
—
—
0.621
—
—
—
Temperature Conversions
° Fahrenheit
Unit
100
F = (C * 1.8) + 32
(water boils)
273.1
—
-459.6° Fahrenheit
C = (F - 32) * 0.555
(water freezes)
—
212° Fahrenheit
Formulas
0
—
32° Fahrenheit
° Centigrade
(absolute 0)
Units of Weight
Gram
Ounce
Avoirdupois
Ounce
Troy
Pound
Avoir.
Pound
Troy
Kilogram
—
0.03527
0.03215
0.002205
0.002679
0.001
1 oz. avoir.
28.35
—
0.9115
0.0625
0.07595
0.02835
1 oz. troy
31.10
1.097
—
0.06857
0.08333
0.03110
1 lb. avoir.
453.6
16.0
14.58
—
1.215
0.4536
1 lb. Troy
373.2
13.17
12.0
0.8229
—
0.3732
1 kilogram
1.0 x 103
35.27
32.15
2.205
2.679
—
Unit
1 gram
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