Nortel Type-119 Enhanced Integrated Subrack Amplifier Optical Subrack Amplifier INSTRUCTION MANUAL

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December 11th, 1998
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INSTRUCTION MANUAL FOR THE
ENHANCED INTEGRATED SUBRACK
AMPLIFIER
Originator/site:
I BARRETT - PAI01
Function:
PRODUCT ENGINEER
Applicable Products:
Product Engineering Code
NTW029AC
NTW029DC
Nortel plc
Optoelectronics
Paignton
Devon
ENGLAND
Common Product Code
A0686087
A0686090
Advanced Technology
Advanced Technology Laboratory
Ottawa
Ontario
CANADA
GF069/11
This document is the property of Nortel plc and without its prior written consent may not be
disclosed to a third party or copied.  Nortel plc 1998
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Change Record
ECN Number
Stream/Issue
Description of Change
103-2773
00 01
First Issue.
103-3946
00 02
ECR1169 - Change to page 8 note 3 - Equipment fuse type
changed to 1.25A Antisurge.
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Table of Contents
1.0 INTRODUCTION.............................................................................................................. 5
2.0 HEALTH & SAFETY......................................................................................................... 6
2.1 Optical Safety. ........................................................................................................ 6
2.1.1 Warning Laser Devices Intrinsic Properties. ............................................... 6
2.1.2 Class 3B Laser Products for Laboratory and Workshop Laser Installations.6
Figure 1 :Laser warning classification....................................................................................... 7
2.2 Electrical and Fire. .................................................................................................. 7
2.3 EMC. ....................................................................................................................... 7
2.4 Electrical Safety Notice. .......................................................................................... 8
Figure 2 :Electrical connections for the Type-119 subrack....................................................... 8
3.0 SHIPPING AND PACKAGING DETAILS ......................................................................... 9
3.1 Screening. ............................................................................................................... 9
4.0 DESCRIPTION................................................................................................................. 10
Figure 3 :Type-119 amplifier outline drawing............................................................................ 11
Figure 4 :Block diagram of the Type-119 subrack. ................................................................... 11
5.0 EXTERNAL SPECIFICATIONS ....................................................................................... 11
5.1 Alarm Indications .................................................................................................... 13
5.2 Front Panel Connections ........................................................................................ 15
Figure 5 :Type-119 Front Panel................................................................................................ 15
5.2.1 Front Panel LCD & Keys............................................................................. 15
5.2.2 Front Panel RS232 Craft Interface.............................................................. 16
5.2.3 Status Light ................................................................................................. 17
5.2.4 Key Switch .................................................................................................. 17
5.3 Rear Panel Connections ......................................................................................... 17
Figure 6 :Type-119 Rear Panel. ............................................................................................... 17
5.3.1
5.3.2
5.3.3
Optical Connectors ..................................................................................... 18
RS485 Daisychain ...................................................................................... 18
Alarm Outputs ............................................................................................. 19
Figure 7 :Block Diagram of Alarm Outputs Interface ................................................................ 20
5.3.4
Power Supply.............................................................................................. 21
6.0 MECHANICAL.................................................................................................................. 21
Figure 8 :Overall Dimensions. .................................................................................................. 22
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Table of Contents (Continued)
6.1 Power Dissipation & Thermal Design. .................................................................... 22
7.0 APPENDICES ..................................................................................................................23
7.1 Appendix A: Front Panel Interface Specification. .................................................... 23
7.1.1 Default display............................................................................................. 23
Figure 9 :Overview of Front Panel Command Menu Structure. ................................................ 24
7.1.2 Main Menu. ................................................................................................. 25
7.1.3 Configuration menu. .................................................................................... 26
7.2 Appendix B: Serial Comms Interface. ..................................................................... 29
7.2.1 Hardware Parameters ................................................................................. 29
7.2.2 Communications Protocol ........................................................................... 29
7.2.3 RS232 / RS485 Protocol ............................................................................. 29
7.2.4 Front Panel Conflicts................................................................................... 29
7.2.5 Password Protection ................................................................................... 29
7.2.6 List of Commands. ...................................................................................... 30
7.3 Appendix C: Maintenance ....................................................................................... 34
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INTRODUCTION
1.0
INTRODUCTION
This document describes the mechanical and electrical interfaces of the Enhanced Optical Subrack
Amplifier and how to use them. Details of the optical performance will depend on exactly which
amplifier option has been chosen and can be found by reference to the appropriate optical data sheet.
The specification of the Enhanced Optical Subrack Amplifier, or Type-119 is defined by its product
code as follows:
•
FA18UFDC-119EC28
Table 1 describes the meaning of the various configuration options available with the subrack.
Code
Table 1: Picture code explanation.
Option
FA14U 14dBm low noise figure amplifier
FA17U 17dBm low noise figure amplifier
FA17S
FA18U
F
R
AC
DC
E
C28
C33
C45
C49
17dBm soft fail amplifier
18dBm low noise figure amplifier
Front mounted fibre exit
Rear mounted fibre exit
110V / 240V switchable mains powered rack
48V DC powered rack
ETSI standard footprint rack (no E signifies 19” standard footprint)
SC-SPC receptacled connector
FC-SPC receptacled connector
FC-APC receptacled connector (2mm key)
SC-APC receptacled connector
Not all the information of this manual will be relevant to all amplifier configurations. This manual
describes the mechanical layout of the Type-119 subrack, the type, position and pin-out of the
electrical and optical inter-connects and the interface protocol through the front panel and over
remote or local serial comms.
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HEALTH & SAFETY
2.0
2.1
HEALTH & SAFETY
Optical Safety.
This product contains Class 3B lasers but when used in a closed circuit optical system as intended
the Amplifier is a Class 1 laser products as defined in IEC825-1:1993, EN60825-1:1994 and in the
USA code of Federal Regulations CFR1040.10.
Class 3B laser emissions can cause almost instantaneous and permanent damage to the eye. An
interlock switch is provided on the optical connector access cover which removes power from the
laser when the cover is opened. However as other parts of the user’s system may not be interlocked it
is recommended that no optical connector in the system is opened or viewed while the equipment is
enabled.
Although, according to IEC 825-1, a fibre optic telecommunications system is class 1 when in it’s
normal operating mode (as all radiation is enclosed by optical fibres), this does not give an indication
of the potential hazard that might exist from a broken fibre or a disconnected fibre termination. IEC
825-2 (Safety of Optical Fibre Communication Systems) deals specifically with this and provides a
system of hazard levels. It should be noted that, when fitted with a class 3B EDFA, this unit is
capable of producing class 3B hazard levels at locations within the users system. Appropriate
precautions, as defined in the standard, must be taken. These include installation of equipment in
controlled locations, appropriate warning signs and labels, and designing connectors such that a tool
is needed for disconnection.
Power to the equipment is controlled by a key operated switch. In their own interests users must
restrict the use of keys to suitably qualified persons only. In the event that it is necessary to open the
optical connectors it is recommended that the system is disabled and then powered down via the key
operated switch.
2.1.1
Warning Laser Devices Intrinsic Properties.
Radiation from semiconductor laser diodes may be sufficiently intensive to cause almost
instantaneous damage to the eye. Each application must be considered hazardous until proven safe.
This needs careful consideration of power emitted, radiation angle of divergence or confinement of
radiation within optical fibres or other physical constraints. Since the radiation is in the non visible
(infra red) portion of the spectrum, precautions must be taken to avoid the accidental viewing of the
light source.
2.1.2
Class 3B Laser Products for Laboratory and Workshop Laser Installations.
Class 3B lasers are potentially hazardous if a direct beam or spectral reflection is viewed by the
unprotected eye (intrabeam viewing). The following precautions should be taken to avoid direct
beam viewing and to control spectral reflections.
(a)
The laser should only be operated in a controlled area.
(b)
Care should be exercised to prevent unintentional spectral reflections.
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HEALTH & SAFETY
(c)
The laser beam should be terminated where possible at the end of its useful path by a material
that is diffuse and of such a colour and reflectivity as to make beam positioning possible while
still minimising the reflection hazards.
NOTE - Condition of safe viewing of diffuse reflections for Class 3B visible lasers are a minimum
viewing distance of 13cm between screen and cornea and a maximum viewing time of 10s. Other
viewing conditions require a comparison of the diffuse reflection exposure with the MPE.
(d)
Eye protection is required if there is any possibility of viewing either the direct or spectrally
reflected beam, or of viewing a diffuse reflection not complying with the conditions of item c).
(e)
The entrances to areas should be posted with a standard laser warning sign as shown in Fig. 1.
Figure 1 : Laser warning classification.
The above precautions are taken from IEC 825-1:1993. The user should always consult with the
latest issue of relevant standards to determine their own safety precautions.
2.2
Electrical and Fire.
External materials meet UL94V1 or better, with an oxygen index of 28% or more.
The equipment build standard complies with the requirements of IEC950, EN60950, UL950 and
CSA C22.2 No.950.
2.3
EMC.
The equipment complies with the requirements defined in the following documents:
•
EN55022/CISPR 22, CLASS b; Conducted and radiated emissions
•
IEC801-2, 1000-4-2, EN61000-4-2; ESD
•
IEC801-3, 1000-4-3, EN61000-4-3; Radiated Field Immunity
•
IEC801-4, 1000-4-4, EN61000-4-4; EFT
•
IEC801-5, 1000-4-5, EN61000-4-5; Lightning surge immunity
•
Bellcore GR-1089-CORE; modulated radiated field immunity.
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HEALTH & SAFETY
2.4
Electrical Safety Notice.
The supplied unit should be connected as specified in Fig. 2 below. The connectors are as viewed
from the rear of the device.
Figure 2 : Electrical connections for the Type-119 subrack.
Earth
Earth
DC+
neutral
Line / Live
DC-
AC version
DC version
connector: standard IEC inlet
connector: Framatome 3way crimp
UTG-6/10/03SNVDE
Electrical safety may be impaired if the connections shown in Fig. 2 above are not observed. For the
DC version, either DC+ or DC- should be connected to Earth.
Table 2 specifies the supply voltage limits for both power supply variants.
Parameter
Table 2: Supply voltage limits.
Symbol Min
Typ
DC Power Supply Voltage
DC Power Supply Current
AC Power Supply Voltage (110V selected)
AC Power Supply Voltage (240V selected)
AC Power Supply Current (110V selected)
AC Power Supply Frequency
Vdc
Idc
Vac
Vac
Iac
Fac
36
48
0.25
90
207
0.4
47
Max
Units
Notes
76
0.6
130
253
0.75
63
V
A
V
V
A
Hz
1
1
2, 3
2, 3
2
2
Notes:
1.
Refers to DC powered unit.
2.
Refers to mains powered unit.
3.
Damage may occur if the AC unit is used with the wrong voltage range selected
Equipment fuse:
H 250V 1.25A Antisurge.
To ensure continued protection against fire replace only with the specified
type and rating of fuse.
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SHIPPING AND PACKAGING DETAILS
3.0
SHIPPING AND PACKAGING DETAILS
Each unit is packed in a corrugated cardboard box, supported by foam inserts. All packaging has
been specifically designed to be reusable. The contents of the packing case are as follows:
•
Type-119 Optical Amplifier Subrack
•
2 keylock keys
•
2 spare fuses
•
User Guide
•
Deliverable data
The subrack is shipped with markings to aid traceability and give safety information to the user.
These labels state:
•
Manufacturer’s name and address.
•
Device type, serial number & date code.
•
FCC declaration.
•
EN60825 laser warning labels situated on the outside and inside of the fibre cover.
•
The usable voltage range & rated current in amps.
•
Fuse type with voltage and current rating and the text: “CAUTION: For continued
protection against risk of fire, replace only with the same type and rating of fuse.”
•
Identification of input and output optical ports.
•
Identification of front and rear panel connectors.
•
CE & UL recognition mark.
In addition, the packing case is marked with the following:
3.1
•
Manufacturer.
•
Country of Origin.
•
Safety information.
•
Device type.
•
Serial number & date code.
•
CE compliance.
Screening.
All product is calibrated and tested for optical and electrical performance before shipping.
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DESCRIPTION
4.0
DESCRIPTION
The Type-119 subrack is specified for use in optical transmission systems. It consists of an electronic
control and monitoring system which monitors the status of the optical and electrical components
within the subrack. This information is used to adjust the control parameters to maintain the required
performance. A set of digital electrical connections enable external control of the subrack,
continuous monitoring of its performance, and provide dry contact voltless relay outputs for alarm
states. The unit complies with CE Class B and UL requirements.
A brief list of the features is outlined below:
•
19” or ETSI compliant 1U rack mounted design.
•
Accommodates dual pump soft fail EDFA.
•
48V DC or Mains PSU options.
•
Interlocked fibre exit at front or rear.
•
RS485 daisychain interface on rear.
•
RS232 craft interface on front panel.
•
Voltless dry contact relay alarm signals on rear.
•
2 line by 24 character LED display, with selection buttons for displaying:
•
Input / Output Power.
•
Status of alarms.
•
Electrical and optical monitors.
•
Password protected configuration options.
•
Front panel status LED.
•
Front panel key switch.
Fig. 3 gives an external view of the product, while Fig. 4 shows a block diagram of the complete
amplifier subrack.
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EXTERNAL SPECIFICATIONS
Figure 3 : Type-119 amplifier outline drawing.
Figure 4 : Block diagram of the Type-119 subrack.
RS232 Craft
Interface
PSU
mains / 48V
Type-119
Enhanced
Subrack
Optical
I/O
RS485 Daisychain
Interface
Configurable
Display
Alarm
Outputs
Status
Light
5.0
EXTERNAL SPECIFICATIONS
This section describes the interface specifications of the Type-119 subrack. For the optical
performance please refer to the relevant optical component data sheet.
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EXTERNAL SPECIFICATIONS
Absolute maximum ratings are those ratings above which the devices performance and reliability
may be impaired. The meeting of optical and electrical specifications is not implied when the device
is subjected to the absolute maximum ratings. The maximum ratings are shown in Table 3.
Table 3: Absolute maximum ratings.
Parameter
Symbol Min
Max
Unit
Storage Temperature
Operating Temperature
DC Supply Voltage
AC Supply Voltage
Tstg
Top
Vdc
Vac
-20
-5
70
50
76
265
degC
degC
Vdc
Vac
Notes
1
2
Notes:
1.
Refers to DC powered rack.
2.
Refers to AC powered rack.
The operating voltages are given in table 2.
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EXTERNAL SPECIFICATIONS
A summary of all the connections incorporated in the design are described in Table 4.
Parameter
Table 4: Electrical and optical interfaces.
Connection
Description
Front Panel
Interface
RS232 Craft
Interface
Status Light
2x24 character LCD display plus Displays information of unit status, indicates alarm
4 selection buttons
states and offers a limited amount of configuration.
9 pin female D-type connector Front panel connection for detailed local analysis and
configuration.
Three colour LED
Gives instant status information on the unit - OK, Minor
alarm or Major alarm.
Master Switch Key switch
Ensures only authorised individuals (with access to key)
can turn the instrument on or off.
Optical Input(s) Optical back-to-back
Customer defined back-to-back connection. Up to 2
inputs available dependent upon optical component.
Optical Output(s) Interlocked optical back-to-back Electrical interlock guards access to fibres to eliminate
possibility of eye exposure to high optical powers. Up to
2 outputs available dependent on optical component.
RS485 Daisy1 male 9 pin D-type connector & Double serial connection for easy daisychaining of
chain
1 female 9 pin D-type connector amplifiers, located on the rear of the unit.
Alarm Outputs 15 pin female D-type connector Gives dry contact relay closure outputs for alarms plus
some test lines on the rear panel.
AC Volts Input IEC Mains socket
For power input on mains models.
DC Volts Input Framatome 3 pin male connector For power input on 48V DC models.
5.1
Alarm Indications
This section details the alarms and monitors that give status information to the user. There are 4 main
methods for displaying status information:
•
Status LED
•
Alphanumeric LCD
•
RS232 / RS485 serial comms
•
Voltless Dry Contact Relay outputs
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EXTERNAL SPECIFICATIONS
Details of each of these is given in later sections of this document. Table 5 gives an overview of each
alarm state and how the subrack uses these status indicators to display them.
Table 5: Alarm conditions for Type-119 subrack.
Alarm
LED
LCD
RS232 / RS485
(note 3)
PSU
off
off
-
PWR
red
PWR FAIL
(AS) PWR
(LS[1,2]) PWR
Major
Optical output out of limits
LOS
red
LOS ON
(AS) LOS
Major
Optical input too low (note 1)
FIB
red
FIB OPEN
(AS) FIB
Tint
red
Tint FAIL
(AS) TINT
Major
Internal temperature exceeded absolute limits
(note 1)
yellow
Tint FAIL
(AS) TINT
Minor
Internal temperature outside preset limits
Tlas FAIL (LS[1,2]) TLAS
Major
Laser temperature exceeded absolute limits
(note 1)
yellow
Tlas FAIL
(LS[1,2]) TINT
Minor
Laser temperature outside preset limits
Idrv
yellow
Idrv ON
(LS[1,2]) IDRV
Minor
Laser drive current outside preset limits
FPA
green
OK
(AS) FPA
-
Front Panel Access permitted
-
-
-
Configuration menu on LCD entered
Tlas
red
Config yellow
Relay
Cause
Major & Supply failure
Minor
Major Fibre interlock open (note 1)
(note 2)
Notes:
1.
This alarm causes the unit to shutdown by disabling the drive to the laser(s). The unit will reply
DISABLED to an AS command on the serial comms.
2.
When the FIB alarm is on, the Minor Relay is never activated.
3.
The table gives the serial comms response to the command in brackets when the alarm is
activated. With the alarms disabled, the response is always OK, however, all other alarm
indications remain (LED, LCD, Relays) and shutdown still occurs if the alarm dictates that it
should. The reply to the command AL is DISABLED to signify the alarms have been disabled.
The alarms available on the unit can be grouped into two areas, those which signify a system or unit
failure (Major alarms) and those that give warning the unit may be operating outside its specified
range (Minor alarms). Not all alarms will be relevant to all configurations.
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EXTERNAL SPECIFICATIONS
MAJOR ALARMS:
•
PSU - Power Supply Alarm - Power supply failure to the unit. All indications will switch off,
however the relays will signify a failure.
•
PWR - Optical Power Alarm - Activated when optical output power (or other drive condition)
has not achieved the pre-set value.
•
LOS - Loss Of Signal Alarm - Activated if optical input power falls below a preset level.
•
FIB - Fibre Interlock Alarm - Activated if the fibre interlock cover is open. This will also cause
the optics to be disabled, raising other alarms.
MINOR ALARMS:
5.2
•
Tint - Internal Temperature Alarm - Activated to show the internal temperature of chassis has
risen above 55°C.
•
Tlas - Laser Temperature Alarm - Activated when the pump laser submount temperature is not
being maintained.
•
Idrv - Laser Drive Current Alarm - Activated where the pump laser drive current in the Gain
Block is required to exceed a pre-set limit in order to achieve the required output power.
•
FPA - Front Panel Access Flag - Set when access to the Configuration Menu is permitted
through the front panel keys. A password is still required to access this menu.
Front Panel Connections
This section describes in more detail the elements on the front panel of the Type-119. Fig. 5 shows
the layout of the front panel, the fibre exit is assumed to be on the rear of the unit.
Figure 5 : Type-119 Front Panel.
Key
Switch
5.2.1
Status
LED
2 line x 24 char LCD
Front Panel
Keys
RS232
Craft Interface
Front Panel LCD & Keys
The unit contains a 2x24 character backlit LCD configured by using four keys to dispense
information about the device and its set-up. There are three main display areas - Default Screen,
Main Menu and Configuration Settings. All information and settings can be accessed by following
the on-screen menus and selecting the appropriate soft key button.
Details of the display menus and how to access them is contained in Appendix A. Below is an
overview of the display properties.
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EXTERNAL SPECIFICATIONS
DEFAULT SCREEN
The exact information given in the Optical Status mode will depend on the optical component.
Below is a typical list of the status items:
•
Pout - Output Power.
•
Pin - Input Power.
•
Overall Alarm Status
MAIN MENU
By accessing the Main Menu, the status of the monitors and alarm function can be toggled through in
more detail.
CONFIGURATION SETTINGS
By entering a user password, access can be gained to a configuration menu where a small number of
parameters can be changed. These include:
•
Adjustment to Optical Output Power.
•
Alarm enable / disable.
•
Address number of the unit.
•
Contrast of the Display.
Access to the front panel configuration menu can be enabled or disabled remotely over the system’s
serial link. When enabled the FPA - Front Panel Access flag (visible over the serial comms) is
asserted. Any access through the front panel causes the Status Light to turn yellow.
5.2.2
Front Panel RS232 Craft Interface
A female 9-pin D-type serial link connector is provided on the front panel for diagnosis and
reconfiguring the unit once installed. Details of the serial interface protocol can be found in
Appendix B. Below is an overview of the comms properties.
Data that can be viewed on the interface includes:
•
Optical Input and Output Power
•
Electronic and Optical monitors
•
Alarm Status (see Section 5.1)
Settings that can be altered include:
•
Optical Output Power
•
Alarm enable / disable
•
Front Panel Access enable / disable
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EXTERNAL SPECIFICATIONS
The Pin-out of the connector is shown in Table 6.
Table 6: Pin-out of 9way female D-type RS232 Craft Interface.
Pin
Connection
Pin
Connection
1
2
3
4
5
5.2.3
RS232 Data Out
RS232 Data In
6
7
8
9
Signal GND
Status Light
The front panel contains an LED to signify at a glance the current status of the subrack. The LED has
three states, as described in Table 7.
Table 7: Status Light States.
Signifies
State
GREEN Unit is operating OK. No alarms have been raised.
YELLOW Minor Alarm has been raised, unit may be operating outside normal conditions
RED
Major Alarm has been raised, unit is not functioning correctly.
In normal operation the status is GREEN. When an alarm is raised, the status will change. The cause
of a status change can be found by interrogating the individual alarm outputs, either via the front
panel display or one of the serial interfaces.
A full list of the Major and Minor alarms is given in section 5.1.
5.2.4
Key Switch
A key switch is provided on the front panel to ensure the unit can only be powered up or down by
authorised personnel. Two keys are provided with the unit.
5.3
Rear Panel Connections
This section describes in more detail the elements on the rear panel of the Type-119. Fig. 6 shows the
layout of the rear panel, assuming rear fibre exit and mains power.
Figure 6 : Type-119 Rear Panel.
Fibre Interlock
Daisychained
RS485
Alarm
Outputs
Dual Fuses
Voltage Selector Mains Inlet
Switch
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EXTERNAL SPECIFICATIONS
5.3.1
Optical Connectors
The optical input and output are via back-to-back adaptors mounted behind the fibre cover and
protected by an interlock. This will interrupt the power to the optics when opened ensuring there can
be no exposure to excessive levels of laser radiation during installation or optical cleaning. This is
not the recommended method of turning off the optics, and in all cases the unit should be powered
down before the cover is opened to avoid the possibility of damaging the laser.
The type of back-to-back adaptor used is defined by the customer.
The design of the optical interface is such that it allows cleaning of all input and output connectors
whilst the unit is installed.
5.3.2
RS485 Daisychain
The rear of the subrack has two 9 pin D-type connectors for RS485 serial communication. The first is
a 9 pin male D-type and the second a 9 pin female D-type to enable up to 32 Type-119 units to be
daisychained together. This serial busing allows all the connected amplifiers to be monitored and / or
configured remotely through serial network management links to a Network Management Centre. In
this way, devices can be reconfigured without any local action.
The information available over the RS485 bus is the same as that supplied through the RS232
interface on the front panel (see Section 5.2.2). The pin designations of the connectors are shown in
Tables 8 and 9.
Table 8: Male 9 pin D-Type Connector Pin-Out.
Pin
Connection
Pin
Connection
1
2
3
4
5
RS485 Data in/out RS485 Data in/out +
6
7
8
9
Signal GND
Table 9: Female 9 way D-Type Connector Pin-Out.
Pin
Connection
Pin
Connection
1
6
Signal GND
2
7
3
RS485 Data in/out -
8
4
RS485 Data in/out +
9
5
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EXTERNAL SPECIFICATIONS
5.3.3
Alarm Outputs
The third D-type connector on the rear panel is a 15 way male used to output alarm information. By
using voltless dry contact relay outputs, electrical isolation in excess of 1kV between the amplifier
unit and any other piece of equipment is ensured. Fig. 7 shows the layout of connections and Table
10 gives a pin-out for the D-type.
Table 10: Male 15 pin D-type Connector Alarms Pin-out.
Pin
Symbol
Description
Pin
Symbol
Description
1
Std in
Standard load input
9
Std ret
Standard load return
2
Isol ret 2
Isolated return line 2 (cathode)
10
Isol i/p 2
Isolated input line 2 (anode)
3
Isol ret 1
Isolated return line 1 (cathode)
11
Isol i/p 1
Isolated input line 1 (anode)
12
Minor hi
Unit operating out of range
13
Minor com
Minor Relay Common
14
Major hi
Unit not operating
15
Major com
Major Relay Common
4
5
Minor lo
Unit operating within range
6
7
Major lo
Unit operating
8
Major ALARM
This alarm is a logical OR of all the major system fail alarms generated internally and listed in
section 5.1.
If the Major Alarm is asserted it means at least one of these alarms has been triggered. The cause of
the Major flag can be found by interrogating the serial ports or the front panel display.
Minor ALARM
This alarm is a logical OR of all the minor system alarms generated internally to the unit (see Alarm
Indication in section 5.1).
If the Minor Alarm is asserted, it means at least one of these alarms has been triggered. Interrogating
either the serial outputs or front panel display will identify which alarm has caused the warning.
ISOLATED INPUTS
Two isolated inputs are provided. The first is configured to disable the optical output, the second to
turn down the output to an eye safe level (<+7dBm).
STANDARD LOAD
The standard load is a simple connection internal to the subrack. By monitoring the impedance
across this line, an operator can be confident that connection to the alarm outputs socket has been
maintained and the lead has not been cut or removed.
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EXTERNAL SPECIFICATIONS
Figure 7 : Block Diagram of Alarm Outputs Interface
Unit
Interface
+5V
Major lo
Major
Alarm
Relay
Major hi
GND
Major com
+5V
Minor lo
Minor
Alarm
Relay
Minor hi
Minor com
GND
Isol i/p 1
Optical Isolated
Input 1
Isol ret 1
Isol i/p 2
Optical Isolated
Input 2
Isol ret 2
Std i/p
Standard
Load
Electrical
Isolation
Std ret
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MECHANICAL
5.3.4
Power Supply
The Type-119 subrack can be supplied as either an AC mains powered unit or a 48V DC powered
unit. This will determine which connection is available on the back plane.
MAINS - Standard IEC 3 pin mains connector with double fuse (live and neutral).
48V DC - Framatome 3 pin crimp 48V DC connector with double fuse (+ve and -ve).
6.0
MECHANICAL
Fig. 4 gives an outline drawing of the complete subrack with ETSI side mounting brackets.
Mounting brackets for the 19” standard are also available. The outer dimensions for a unit with the
fibre interlock on the rear are shown in Fig. 8 and summarised in the Table 11.
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MECHANICAL
Figure 8 : Overall Dimensions.
442
242
50
43
all dimensions in mm
482
Table 11: Type-119 Subrack Dimensions in mm.
Std ETSI
Parameter
Typ (note 2)
envelope
Subrack Depth (note 1)
Subrack Width
Subrack Height
Overall Width (including mounting brackets)
Pitch of mounting holes
Bracket offset from front panel
242
442
43
280
445
50
(2SU)
535
515
45
Std 19”
envelope
300
450
44.45 (1U)
482.6
465
0
Notes:
6.1
1.
This dimension includes the electrical and optical connectors.
2.
Typical dimensions of subrack. Manufacturing tolerance +/- 0.5mm.
Power Dissipation & Thermal Design.
The maximum case temperature is 50 oC, and the total power dissipation including the optics is less
than 20 watts for 50 oC ambient temperature.
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APPENDICES
7.0
7.1
APPENDICES
Appendix A: Front Panel Interface Specification.
Fig. 9 gives an overview of the menu structure used on the front panel display. A more detailed
description of each menu is given in the sections that follow.
NOTE: To enter the Configuration menu the password required is to simultaneously press the Up
arrow and Down arrow keys. The Reset key exits from the current menu back to the Default Display,
while selecting RETURN from any menu takes you up one level to the feed menu.
7.1.1
Default display.
By default the display shows the input and output power on the top line with a status indication and
“ENTER for menu” on the bottom line. If an alarm is triggered - causing the status light of the unit to
change - this is written on the bottom left of the display. If more than one alarm is triggered, a down
arrow will signify that there are more alarms to view, and pressing the down arrow button will scroll
through them.
An example of the display when the status is OK is shown below:
IN:-0.3dBm OUT:+16.1dBm
OK
ENTER for menu
The alarms are listed in the following order:
FIB OPEN
-
Fibre interlock cover open
PWR FAIL
-
Output power out of limits
LOS ON
-
Loss of input signal
Idrv HI
-
Laser drive current too high
Tlas ON
-
Laser submount temperature out of limits
Tint ON
-
Internal temperature of unit out of limits
An example of the display when alarms are raised is shown below:
IN:-0.3dBm OUT:+16.1dBm
FIB OPEN ↓ ENTER for menu
The default display is continually updated with status information. All the other displays in the submenus are only updated when they are first entered, to refresh the display, you must change the
parameter that is displayed and then return to the chosen item.
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APPENDICES
Figure 9 : Overview of Front Panel Command Menu Structure.
Default
Display
input power
output power
status
enter
Main
Menu
output power
input power
monitors
enter
Idrv
Ipelt
Tlas
Tint
Return
alarms
enter
FIB
PWR
LOS
Idrv
Tlas
Tint
Return
alarms enabled
serial no.
address
Return
password
Config
Menu
output power
enter
adjust
alarms enabled
enter
disabled
address
enter
adjust
display contrast
enter
adjust
Return
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APPENDICES
7.1.2
Main Menu.
The top level menu gives an overview of the unit status and allows access to more detailed monitors.
The menu items are accessed by scrolling up and down the list - with only one item shown on the
display at any one time. If there are menu items below the one shown on the display, then a down
arrow is visible in the bottom right hand corner. Similarly, if there are menu items above the one
shown, an up arrow will be displayed alongside the down arrow.
The menu items are selected using the up and down arrow keys on the front panel. When the desired
item is displayed, ENTER will move to the next level (if appropriate, see actions for each item
below).
Menu items:
OUTPUT POWER: +16.1 dBm
INPUT POWER: +0.1 dBm
MONITORS:
ALARMS:
ALARMS: ENABLED
SERIAL NO: AM12345
ADDRESS: 1234
RETURN:
Below is an example display showing ALARMS and up and down arrows to show that there are
menu items above and below those shown.
MAIN MENU
ALARMS:
↑↓
If no keys are pressed for approximately 5 minutes, the unit will automatically time-out of the main
menu and return to the default screen.
Action for each menu item.
When a menu item is selected, pressing the ENTER key may give access to another level of menus.
The result of selecting each menu item is outlined below.
OUTPUT POWER:
Displays the current output power of the unit. No action results from pressing ENTER.
INPUT POWER:
Displays the current input power to the unit. No action results from pressing ENTER.
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APPENDICES
7.1.3
MONITORS:
Pressing ENTER gives access to another menu, displaying all the monitored parameters.
Idrv1: 100mA
2: 80mA
Tpelt1: 120mA 2: 140mA
Tlas1: 27 oC
2: 25 oC
Tint: 29 oC
RETURN:
These monitors can be scrolled through in the same way as the main menu. None of the monitors can
be selected. Selecting RETURN: returns the user to the main menu, pressing RESET exits back to
the default display.
ALARMS:
Pressing ENTER gives access to another menu, displaying each ALARM and its status.
FIB ALARM: OFF
PWR ALARM: OFF
LOS ALARM: OFF
Idrv ALARM: OFF
Tlas ALARM: OFF
Tint ALARM: OFF
RETURN:
These alarms can be scrolled through in the same way as the main menu. None of the alarms can be
selected. Selecting RETURN: returns the user to the main menu, pressing RESET exits back to the
default display.
ALARMS: ENABLED
States whether or not the alarms are currently activated. No action results from pressing ENTER.
SERIAL NUMBER:
The serial number of the unit, defined at manufacture and never changed. No action results from
pressing ENTER.
ADDRESS:
The communication address of the unit. No action results from pressing ENTER.
RETURN:
Selecting and pressing ENTER moves the user back to the default screen. This can also be achieved
by pressing RESET at any stage.
Configuration menu.
Entering the password at any stage will cause the display to go into the configuration menu, allowing
the user to change a number of parameters. Access to the Configuration menu can be denied by
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APPENDICES
setting the Front Panel Access Flag to OFF via the serial interface. Whenever the configuration menu
is entered, the front panel status light will change to AMBER. The menu accessed is as below:
OUTPUT POWER: +16.1dBm
ALARMS: ENABLED
ADDRESS: 1234
DISPLAY CONTRAST:
RETURN:
If no keys are pressed for approximately 5 minutes, the unit will automatically time-out of the
configuration menu and return to the default screen.
Action for each menu item.
OUTPUT POWER:
Allows the user to adjust the output power of the unit within pre-determined limits. Pressing ENTER
changes the display as below. The blank rectangle is in fact a flashing character, signifying that the
number is ready to change.
By pressing the up and down arrow keys, the output power can be varied within pre-determined
limits. When the desired level is reached, pressing ENTER confirms the value and returns the user
back to the configuration menu. Pressing RESET at any time, aborts any changes made and returns
the user to the default display.
CONFIGURATION MENU
OUTPUT POWER: +15. Ã dBm
Changing the output power in this way causes the unit to run in constant output power mode,
irrespective of any previous set-up.
ALARMS: ENABLED
This menu item can be toggled between ALARMS ENABLED and ALARMS DISABLED by
pressing ENTER. ALARMS DISABLED means that any parameter out of limits does not trigger an
alarm on the serial interface. The LCD, LED and relays still register the alarm and, if applicable, the
amplifier is still disabled. The status light on the front panel will go to AMBER whenever the alarms
are disabled.
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APPENDICES
ADDRESS:
CONFIGURATION MENU
ADDRESS: Ã 234
Selecting and pressing ENTER allows the user to change the unit address. Only one character of the
4 character address can be changed at once, the up and down arrow keys either increase or decrease
the character by one between 0 and F. When the correct figure is reached, pressing ENTER moves
the cursor to the next character to the right to repeat the process. The blank rectangle in the diagram
will in reality flash to portray which character is being changed.
Pressing ENTER when all 4 characters are set confirms the new address and returns the user to the
configuration menu. Pressing RESET at any stage aborts the changes and returns the user to the
default display.
DISPLAY CONTRAST:
The display changes as below and allows the user to vary the display contrast. The up and down
arrow keys will turns the contrast up and down, and the bar graph along the 2nd row of the display
will give a pictorial view of the value being set.
DISPLAY CONTRAST
↓ ÃÃÃÃÃÃÃÃÃÃÃ
↑
When complete, pressing ENTER confirms the contrast value and returns the user to the
configuration menu. RESET will abandon the changes and return to the default display.
RETURN:
Selecting and pressing ENTER moves the user back to the default screen. This can also be achieved
by pressing RESET at any stage.
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APPENDICES
7.2
Appendix B: Serial Comms Interface.
7.2.1
Hardware Parameters
7.2.2
Both the RS232 and RS485 serial ports are designed to work with the following hardware settings:
•
Data Rate:
9600 baud
•
Data Bits
8
•
Stop Bits
1
•
Parity
none
When using the RS485 channel, it is vital that no hardware handshaking is used.
Communications Protocol
7.2.3
The following is a list of user commands for the Type-119 subrack and the replies received. All
commands must be terminated by CR, LF. Before accepting commands the rack must be activated by
sending the appropriate address command (see below). Once activated the address of the active unit
will be displayed as a prompt, indicating the unit is ready to receive a command, e.g. “0001>” for
unit address 0001. When a unit comes out of reset it will be inactive (i.e. it will not reply to any
commands received) until it sees its own address command. When an address command pointing to
a different address is seen the unit will again become inactive.
The following descriptions show the prompt before the instruction to be issued, this is what will be
seen on the screen and need not be typed. Where characters following a command are shown in
square brackets, this indicates a choice of the listed options available e.g. [1,2] indicates the
command can be issued with 1 or 2 following. The square brackets [] are not to be entered. Any
spaces shown in the syntax MUST be entered.
RS232 / RS485 Protocol
7.2.4
The Type-119 subrack is fitted with an RS485 interface on the rear panel and an RS232 interface on
the front panel. In order to prevent any possible conflicts which may arise if both serial channels are
operating simultaneously, the RS232 local interface on the front panel will always take precedence
and commands received on the RS485 channel will be ignored whenever the RS232 interface is in
use.
Front Panel Conflicts
7.2.5
Similarly, when the front panel enters configuration mode, all commands through the front panel
take precedence over any serial comms, until such time as configuration mode is left - either hitting
the key to return or timing out. During this period, the serial comms is still open for read access.
Password Protection
The password is a 4 hexadecimal digit PIN (e.g. 12AB). When the password is entered all commands
are enabled in the normal way, enabling complete read and write access to all parameters.
When the password is not entered read only access is allowed and a response of??? will be returned
if a write command is attempted.
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APPENDICES
7.2.6
To enter the password use the AD (or ADQ) command in the normal way with the password
following the address:
AD 1 12AB - Activates the unit with address 1 and password 12AB in read/write mode.
To clear password mode enter the AD (or ADQ) command without the password:
AD 1 - Activates the unit with address 1 in read only mode.
When the unit is deactivated (a non-matching address seen) the password mode is cleared.
Only the following commands are protected by password and will cause a response of??? if
protected commands are disabled. A more detailed explanation of all the commands is given in later
sections.
•
AL [Y,N]
(enables or disables the alarms)
•
FP [Y,N]
(set front panel write access)
•
LO -10
(set unit LOS detection point)
Note. Some of the above commands can be issued, without values, to act as a read command. This
usage will be unaffected by password status.
List of Commands.
Table 12 gives a summary of all the commands available on the serial comms channel of the Type119 amplifier. Following is a more detailed listing of each command syntax along with replies and
other applicable information.
For correct command syntax, the spaces shown MUST be included, or the unit will reply???
signifying an unrecognised command. Where square brackets are shown [], this denotes that only
one of the items within the brackets is entered. The brackets must not be entered.
0001> AD 2 [PASS] - Instructs unit address 2 to become active, all other units will become
inactive. Active unit will echo all characters received. Address is a hexadecimal number in the range
0 -FFFE. Address FFFF is used as a global address and all units seeing it will become active. If
PASS is not entered (or entered incorrectly) read only access is granted. All commands requiring a
write operation will be answered with???. PASS is a 4 digit hexadecimal number.
Reply is the prompt of 0002>
0001> ADQ 2 [PASS] - As AD command but the active unit will NOT echo any characters
received. All other parameters are the same as the AD command.
Reply is the prompt of 0002>
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APPENDICES
Table 12: Summary of commands for Type 119 Subrack
Command
Syntax
AD
ADQ
AL
AD Addr [PASS]
ADQ Addr [PASS]
AL
AL [Y,N]
AP
AS
CA SerNo Addr
FP
FP [Y,N]
LO
LO Val
LP [1,2]
LS [1,2]
LT [1,2]
MB
MC
V
AP
AS
CA
FP
LO
LP
LS
LT
MB
MC
V
Description
Address command with optional password
No echo address command with optional password
Status of alarms - enabled or disabled
Enable [Y] or disable [N] alarms
Amplifier power
Amplifier status
Change address of amplifier
Status of front panel access flag
Enables [Y] or disables [N] front panel access
Set point for LOS alarm
Sets threshold for LOS alarm (in dBm)
Laser power
Laser status
Laser temperature
Mode of boost laser
Mode of control laser
Firmware version
Password
Protected
Y
Y
Y
0001> AL - reply is of the form:
ENABLED or
DISABLED to signify whether alarm conditions will be highlighted (ENABLED) or not.
0001> AL [Y,N] - This command is password protected. Enables (AL[Y]) or disables (AL[N])
the alarms. When disabled, no alarms will be triggered irrespective of conditions within the unit.
This command should obviously be used with care as it could mask some serious problems with the
unit. The factory default condition is AL[Y]. Reply takes the form:
OK if successful and stored or:
??? if it is not possible to set the required parameters or the unit is password protected and in read
only mode.
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APPENDICES
0001> AP - asks for the optical powers of the amplifier. Reply in the form:I/P:-1.2dBm O/P:10dBm
i.e., input optical power is -1.2dBm, output optical power is 10dBm.
0001> AS - asks for the status of the amplifier. Reply in the form:STATUS:[OK DISABLED PWR LOS TINT FPA FIB]
One or more of the messages in [] will be displayed. Below is a brief explanation of each status label.
•
OK - Normal operating status
•
DISABLED - Lasers are disabled
•
PWR - Output power is out of limits (causes lasers to be disabled)
•
LOS - Loss of input signal (causes lasers to be disabled)
•
TINT - Internal temperature of unit out of limits (may cause lasers to be disabled)
•
FPA - Access to the configuration menu through the front panel is permitted.
•
FIB - Fibre interlock open (causes lasers to be disabled)
Note: Status will always read OK if the alarms have been disabled by the AL[N] command.
0001> CA SerNo Addr - instructs the unit with Serial Number SerNo to adopt communications
address Addr. SerNo is specified during manufacture and written on the label on the rear of the unit,
Addr is a hexadecimal number in the range 0 - FFFE. The factory default is an address of 0001.
Reply takes the form:
OK if successful and stored or:
??? if the command format was incorrect.
0001> FP - returns the current status of the Front Panel Access Flag:
FP ON if full read / write access granted.
FP OFF if read only access granted.
The factory default is FP ON for full read / write access, although to alter any parameters through the
front panel, the user still needs to enter a password (see Front Panel Display section).
0001> FP [Y,N] - This command is password protected. Enables (FP[Y]) or disables (FP[N])
write access to the amplifier through the front panel display and keys. When write access is disabled
(FP[N]) it is not possible to change the unit settings through the front panel, even if the front panel
password is entered. Factory default is FP[Y] to allow front panel access. Reply is of the form:
OK if successful and stored or:
??? if the command format was incorrect or the unit is password protected and in read only mode.
0001> LO - asks for the current LOS set point. The reply is in the form:
-10dBm
0001> LO -20 - This command is password protected. Sets the LOS point to be -20dBm. Factory
default is a -10dBm set point. Reply is in the form:OK if successful and stored or:
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APPENDICES
??? if the command format was incorrect or the unit is password protected and in read only mode.
0001> LP [1,2] - asks for the power of laser 1(2). Reply is in the form:
P1:123.4 mA, 12.3 mW
indicating laser1 drive current is 123.4mA and the rear facet power is 12.3mW.
0001> LS [1,2] - asks for the status of laser 1(2). Reply is in the form:
S1:[OK DISABLED TLAS IDRV PWR NOT FITTED]
One or more of the messages in [] will be displayed. The list below explains briefly the meaning of
each status label.
•
OK - Normal laser operation
•
DISABLED - Laser is disabled
•
TLAS - Laser temperature out of limits
•
IDRV - Laser drive current out of limits
•
PWR - Laser output power failure
•
NOT FITTED - Laser is not fitted
Note: Status will always read OK if the alarms have been disabled by the AL[N] command.
0001> LT [1,2] - asks for the temperature of laser 1(2). Reply is in the form:
T1:22.3,123 mA
indicating laser1 Submount temperature is 22.3degC and the TEC drive current is 123mA.
0001> MB - asks for the Mode of the boost laser. Reply is in the form:
BOOST:L2, Mode:D, Req:123.4mA
indicating Laser 2 is the boost laser, running in constant Drive mode with a power requirement of
123.4mA. Possible modes are D (constant forward drive current), M (constant rear facet monitor)
and S (soft fail mode).
0001> MC - asks for the Mode of the control laser. Reply is in the form:
CONTROL:L1, Mode:O, Req:12dBm
indicating Laser 1 is the control laser, running in constant Output power mode with a power
requirement of 12dBm. Possible modes are D (constant forward drive current), M (constant rear
facet monitor), O (constant output power) and S (soft fail mode).
0001> V - asks for the version of 68HC11 software currently loaded in program EEPROM and the
version of downloader in EPROM. The reply is in the form:
Download V1.0 16-Jul-97
Type 119 V1.0 25-Aug-97
Serial No: AM65432
Gain Block No: FA17U-95 AM12345
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APPENDICES
7.3
Appendix C: Maintenance
No periodic servicing of the unit is required. No internal user adjustments or calibration can be
made.
Nortel recommends that electrical safety checking and the correct operation of the fibre interlock be
periodically tested to ensure correct operation in accordance with the customer’s safety procedures.
The interlock is designed to remove the laser’s power when the door is opened by more than 1cm.
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Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Artisan Technology Group is your source for quality
new and certified-used/pre-owned equipment
• FAST SHIPPING AND
DELIVERY
• TENS OF THOUSANDS OF
IN-STOCK ITEMS
• EQUIPMENT DEMOS
• HUNDREDS OF
MANUFACTURERS
SUPPORTED
• LEASING/MONTHLY
RENTALS
• ITAR CERTIFIED
SECURE ASSET SOLUTIONS
SERVICE CENTER REPAIRS
Experienced engineers and technicians on staff
at our full-service, in-house repair center
WE BUY USED EQUIPMENT
Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins
www.artisantg.com/WeBuyEquipment
InstraView REMOTE INSPECTION
LOOKING FOR MORE INFORMATION?
Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical
specifications, manuals, and documentation
SM
Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com
Contact us: (888) 88-SOURCE | [email protected] | www.artisantg.com
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