Cisco Prisma II Hybrid Amplifier Installation Manual page 172

Appendix B
Module Parameter Descriptions
Parameter ICIM
Name (LCI) Abbrev.
Laser 1 LasBias1
Bias
Current
1, 2
Laser 2 LasBias2
Bias
Current
1, 2
Laser Enable
Enable
Status
3
Internal IntPs
Power
Supply
Status
4
Power PsOk
Supply
Status
5
Service Service
Mode
Status
3
Alarm limit values for this parameter are relative to the nominal alarm value.
1
Nominal laser bias values are set in manufacturing based on the characteristics of the laser
2
diode, and may vary from module to module. Major Low and Minor Low alarm thresholds
are intentionally set low to avoid false alarms that may be generated at high optical input
levels (a good condition that corresponds to low bias current). It is recommended that these
limits not be changed from their factory defaults.
The alarm values OK and Alarm correspond to the control values OFF and ON,
3
respectively.
This alarm sets the unit to the safe state, in which the optical input is disabled.
4
This alarm sets the unit to the safe state, in which the lasers are turned off and optical
5
output is disabled.
146
Nominal Major
Value Low
Limit
3.7 to -8.0 A
5.0 A
3.7 to -8.0 A
5.0 A
- -
- -
- -
- -
Minor Minor Major
Low High High
Limit Limit Limit
-8.0 A -0.1 A -0.001 A 0.001
-8.0 A -0.1 A -0.010 A 0.001
- - -
- - -
- - -
- - -
Hys- Operating
teresis Range
OK or
Alarm
OK or
Alarm
- OK or
Alarm
- OK or
Alarm
- OK or
Alarm
- OK or
Alarm
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