SM Series Bell-202, Bell-202T, V.23 Modems Configuration and

Applied Systems Engineering, Inc.
SM Series Bell-202, Bell-202T, V.23 Modems
Configuration and User’s Guide
Version 1.10
Applied Systems Engineering, Inc.
1671 Dell Avenue, Suite 200
Campbell, California 95008
USA
E-mail: support@ase-systems.com
Tel:
Fax:
(408) 364-0500
(408) 364-0550
Applied Systems Engineering, Inc.
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Applied Systems Engineering, Inc.
Property of Applied Systems Engineering, Inc.
This document and its associated distribution media contain proprietary
information of Applied Systems Engineering, Inc. and may not be used,
copied, or distributed in any form without the written permission of
Applied Systems Engineering, Inc.
Copies of this documentation may be made for internal use by the
legally licensed owner only.
© 2002 Applied Systems Engineering, Inc. All rights reserved
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Applied Systems Engineering, Inc.
Table of Contents
FEATURES................................................................................................................................................... 1
PACKAGING ............................................................................................................................................... 1
SWITCH SETTINGS................................................................................................................................... 2
JUMPER SETTINGS FOR BOX MOUNT (5006) MODEM (REV C)................................................... 3
JUMPER SETTINGS FOR RACK MOUNT (5008) MODEM (REV C)................................................ 4
POWER CONNECTION ............................................................................................................................ 5
RJ-11 CABLING .......................................................................................................................................... 5
RS-232 CABLING ........................................................................................................................................ 5
COMMON PROBLEMS AND SOLUTIONS ........................................................................................... 5
PRODUCT CODES...................................................................................................................................... 6
DIAGRAM: RACK MOUNT MODEM BOARD ..................................................................................... 7
DIAGRAM: BOX MOUNT MODEM BOARD ........................................................................................ 8
DIAGRAM: RACK MOUNT ENCLOSURE BACKPLANE .................................................................. 9
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Applied Systems Engineering, Inc.
Features
Power
• 5 VDC or 12 to 160 VDC, draws less than 500 mw
• Power cable can be removed/inserted with power on
• "Hot Card Swap" on rack mount configuration
Timings
• Carrier detect on delay: 2 to 30 msec.
• RTS/CTS delay: 0 to 254 msec. or constant CTS
Levels
• Transmit Gain: 0 to –31 dB, switch selectable, 1dB increments
• Receiver Gain: –35 or -45 dB, switch selectable
Isolation
• 1,500 VAC Telco
• 1,800 VAC Power Supply
LEDs
• LEDs for transmit (TD) and receive (RD) data, RTS, CTS, carrier detect (CD), and power
Connections
• Analog side via 4-wire RJ-11
• Digital side via DB-25 RS-232
Other
• 2-wire or 4-wire (2-wire with optional 156 msec. receiver squelch)
• Constant or switched carrier
• 900Hz soft carrier turn-off
Packaging
The modem dimension is based on a VME form-factor PC card (100 x 160mm) that can be mounted in an
optional metal box (Model 5006), inserted into a VME-style rack (Model 5008), or mounted in a customer
enclosure (Model 5006) with 4 4-40 screws. The metal box dimensions are 7.35 x 4.14 x 1.42” (187 x 105
x 36 mm) and include flanges with 4 mounting holes. For the rack mount version, power is provided
through the backplane connector. For the Model 5006, power connection is via a 3-position terminal block.
Page 1
Applied Systems Engineering, Inc.
Switch Settings
•
•
Settings Apply to Both Rack Mount (5008) and Box Mount (5006) Modem
Bold Italics indicates factory settings
Switch
Usage
Notes
SW1
Transmit gain
•
•
JP7
SW3
CD On Delay
900Hz softcarrier turn-off
SW4
RTS/CTS
0 to –31 dB
Add values for all switches in the ON position and add
0 to sum of switch values if JP7 is installed and add
–16 if JP7 is removed.
JP7 (See Jumper Settings)
• Delay in setting RS-232 “CD” signal after carrier is
detected, 2 to 30 milliseconds
• Add values for all switches in the ON position
• At least one switch must be ON
• Soft-carrier turnoff duration, 1 to 15 milliseconds
• Add values for all switches in the ON position.
• At least one switch must be ON
•
•
•
Delay between requesting RTS and granting CTS, 0 to
254 milliseconds or constant
If switch 1 is OFF, add values for all switches (2 to 8)
in ON position.
If all switches are OFF, CTS is constantly enabled
Page 2
Position
Value if ON
1
2
3
4
-1 dB
-2 dB
-4 dB
-8 dB
installed
1
2
2 msec
4 msec
3
8 msec
4
5
16 msec
1 msec
6
2 msec
7
8
1
2
4 msec
8 msec
0 msec
2 msec
3
4 msec
4
8 msec
5
16 msec
6
7
8
32 msec
64 msec
128 msec
Applied Systems Engineering, Inc.
Jumper Settings for Box Mount (5006) Modem (Rev E)
•
Bold Italics indicates factory settings
Jumper
Usage
Notes
JP1
DTR/DSR
•
•
•
•
•
•
JP2
Receiver
gain
JP3
Receiver
squelch
JP4
2W/4W
JP5
Carrier
JP6
900Hz soft
carrier
turn-off
JP7
JP8
Transmit
level range
selection
Power
Supply
•
•
•
Uses DTR as “clear-to-send” signal, instead of CTS
Uses DSR as “request-to-send” signal instead of RTS
Normal mode (RTS/CTS) has no jumpers installed
Sets receiver gain to –35 or –45 dB
Exactly one jumper must be installed
For half duplex mode, adds 156 millisecond delay between
end of transmitted message and enabling receiver
Receiver constantly enabled if not installed
Selects 2-wire (half duplex) or 4-wire (full-duplex) operation
Exactly 2 jumpers must be installed
Jumper
Meaning
1-2
DTR
3-4
DSR
1-2
-45 dB
3-4
-35 dB
1-2
156 msec
1-2
3-4
2-wire
5-6
7-8
4-wire
1-2
Removed
1-2
Installed
1-2
Installed
5V
•
•
•
•
•
•
•
Selects switched or constant carrier
Remove jumper for switched carrier
Installed if 900Hz-carrier turn-off is not required.
Removed if 900Hz-carrier turn-off is required.
Note: Must be installed for V.23 CCITT operation
If installed, SW1 settings interpreted as 0 to –15 dB
If removed, SW1 settings interpreted as –16 to –31 dB
•
If 1-3 and 2-4, input power must be regulated 5 VDC
1-3
2-4
•
If 3-5 and 4-6, input power can be 12 to 160 VDC
3-5
4-6
3-5
4-6
JP9
Reserved
•
These jumpers are factory installed and must not be altered
after shipment.
JP10
Earth
•
Jumper inserted connects (-) power input to (S) shield on
terminal block
Page 3
1-2
12-160 V
Installed
Removed
Applied Systems Engineering, Inc.
Jumper Settings for Rack Mount (5008) Modem (Rev A)
•
Bold Italics indicates factory settings
Jumper
Usage
Notes
JP1
DTR/DSR
•
•
•
•
•
•
JP2
JP3
JP4
Receiver
gain
Receiver
squelch
2W/4W
JP5
Carrier
JP6
900Hz
soft
carrier
turn-off
Transmit
level
range
selection
Reserved
JP7
JP9
•
•
•
Uses DTR as “clear-to-send” signal, instead of CTS
Uses DSR as “request-to-send” signal instead of RTS
Normal mode (RTS/CTS) has no jumpers installed
Sets receiver gain to –35 or –45 dB
Exactly one jumper must be installed
For half duplex mode, adds 156 millisecond delay between
end of transmitted message and enabling receiver
Receiver constantly enabled if not installed
Selects 2-wire (half duplex) or 4-wire (full-duplex) operation
Exactly 2 jumpers must be installed
•
•
•
•
•
Selects switched or constant carrier
Remove jumper for switched carrier
Installed if 900Hz-carrier turn-off is not required.
Removed if 900Hz-carrier turn-off is required.
Note: Must be installed for V.23 CCITT operation
•
•
If installed, SW1 settings interpreted as 0 to –15 dB
If removed, SW1 settings interpreted as –16 to –32 dB
•
These jumpers are factory installed and must not be altered
after shipment.
Page 4
Jumper
Meaning
1-2
DSR
3-4
DTR
1-2
-45 dB
3-4
-35 dB
1-2
156 msec
1-2
3-4
2-wire
5-6
7-8
4-wire
1-2
Removed
1-2
Installed
1-2
Installed
3-5
4-6
Installed
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Power Connection
View the end of the board with the RJ-11 connector at your left and the three-position power connector at
your right. The three power connector pins are as follows:
Location
Pin
Label
Description
Leftmost
1
+
Power Positive
Middle
2
-
Power Negative (return)
Rightmost
3
S
Earth ground (not normally used)
RJ-11 Cabling
The standard RJ-11 jack terminates in 4 spade lugs. The following table contains the cabling options for
both 4-wire and 2-wire operation.
RJ-11 Cable
Red
Green
Yellow
Black
4-wire mode (full duplex)
2-wire mode (half duplex)
Transmit
Transmit/Receive
Receive
Unused
RS-232 Cabling
The following table itemizes RS-232 pins utilized. Pins not listed are not used.
Pin
Description
Pin
Description
1
Frame Ground
5
Clear To Send (CTS)
2
Transmit Data (TD)
7
Signal Ground
3
Receive Data (RD)
8
Carrier detect (CD)
4
Request To Send (RTS)
Common Problems and Solutions
Description of Problem
Recommended Solution
Messages sent by the ASE modem are
not received at the other modem
Make sure that the RTS/CTS time (SW4) on the ASE modem
is longer than the carrier detect time on the other modem.
Messages sent by another modem are not
received at the ASE modem
Make sure that the RTS/CTS time on the other modem is
longer than the “CD On Delay” time (SW3) on the ASE
modem.
Frequent communication errors in
messages received at non-ASE modem
The ASE modem supports two methods for disabling the
carrier, selected by the jumper at JP6. Try the alternate setting.
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Applied Systems Engineering, Inc.
Product Codes
Product codes are of the form SM-MMM-P-K
MMM
P
Modem
type
Power
Option
202
Bell-202
B
PC board only
V23
V.23 CCITT
V
VME chassis
mounting bracket
I
12 to 160 VDC
M
Metal box
X
5 VDC
K
Packaging
For example:
SM-202-X-V specifies a Bell-202 modem with the 5 V power option and VME mounting bracket.
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Applied Systems Engineering, Inc.
Diagram: Rack Mount Modem Board
Single Channel Modem
Rack Mount Enclosure
RTS
CTS
3
4
2
5
4
4
3
3
2
2
1
JP3
1
SW4
SW3
JP9
1 2
4
CD
PWR
1
6
5
5 6
RX
JP2
8
7
JP6
JP7
3
TX
JP5
8
7
6
2 4
JP1
1 3
Loopback
Switch
1 3 5 7
2 4 6 8
JP4
4
3
2
1
SW1
Jumper and Switch Locations
Models SM-202-X-V
Models SM-V23-X-V
Applied Systems Engineering, Inc
Part: AD341-5008, Revision A
Revision 1
File: \\wsw\c\drawings\SingChanModemRevA-Rack.vsd
March 12, 2002
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Applied Systems Engineering, Inc.
Diagram: Box Mount Modem Board
Single Channel Modem
Box Mount Enclosure or Board Only
JP5
6
5
5
RX
4
3
4
3
RTS
2
1
2
1
CTS
SW4
S
JP8
2 4 6
6
TX
JP10
8
7
1 3 5
8
7
SW3
JP9
4
2
1
JP6
JP7
JP2
JP3
RJ11
Connection
1
3
4
3
1 3 5 7
8
JP4
3
5 6
3
1 2
JP1
2 4 6
Loopback
Switch
DB25
Serial Connection
4
CD
PWR
Power
Connection
SW1
2
4
2
1
Jumper and Switch Locations
Models SM-202-x-M, SM-202-x-B
Models SM-V23-x-M, SM-V23-x-B
Models SM-202-I-V, SM-V23-I-V
Applied Systems Engineering, Inc
Part: AD341-5006, Revision E
Dwg: Revision 4
File: \\wsw\c\drawings\SingChanModemRevE.vsd
September 12, 2002
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Applied Systems Engineering, Inc.
Diagram: Rack Mount Enclosure Backplane
Single Channel Modem
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
RX- RX+TX- TX+
Rear View
Screw
Down
Connection
+5VB
TX- TX+
DB-25 Female
Transmit Data +
Transmit Data -
RX+
GND B
+ 5 Volts Power Supply 2
PS 2
Ground Power Supply 2
PS 1
+ 5 Volts Power Supply 1
GND A +5VA
Ground Power Supply 1
Receive Data +
RX-
+5V
B
AC High (Hot)
RX- RX+TX- TX+
GND
Logic Ground
RX- RX+TX- TX+
+5V
A
+ 5 Volts
GND A +5VA GND B +5VB
GND
(5 Volt DC Section)
RX- RX+TX- TX+
Rack Mount Enclosure
Backplane Connections
Receive Data -
AC Low (Neutral)
Earth Ground
(115 Volt AC Section)
Communication Line
and
Power Connections
Notes:
None
Models SM-202-X-V
Models SM-V23-X-V
Applied Systems Engineering, Inc
Revision 4
File: \\wsw\c\drawings\SingChanModemRevC-Chassis.vsd
March 12, 2002
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