Cisco Prisma II bdr Dig Rev 2 1 Dual Mux Sys for High Density Installations Installation Guide
5-4
Maintenance and Troubleshooting
78-715192-01 Rev C
Troubleshooting Alarm Conditions
ICIM Alarm Conditions
If the red ALARM indicator is illuminated or is blinking, check the ICIM to
determine the cause of the alarm. Blinking = minor alarm, steady illumination =
major alarm.
Alarm
Alarm Condition
Indication Possible Cause
FPGA
Indicates that the FPGA
can be read from and
written to
Fault
Hardware failure.
OSM_Comm
Gets set when it is not
possible to read and
write the to EEPROM
in an installed OSM
(Transmitter sub-
module).
Fault
Ensure transmitter sub-module
is fully seated. Remove and
reinstall sub-module.
Power_In
Status of +24V and –5V
power inputs.
Fault
Check power supplies. Make
sure the power supply module
is fully seated in chassis.
Clock100
Alarms when the 100
MHz clock does not
lock on to the 1 MHz
reference.
Fault
Ensure processor Clk_Src has
not been accidentally set to
Slave. If in Slave mode make
sure there is a valid 1 MHz
reference present.
Clock125
Alarm when 125 MHz
clock will not lock on
100 MHz clock
Fault
Hardware failure.
Lsm1Pres
Transmitter sub-
module 1 is missing.
Fault
Ensure transmitter sub-module
1 is installed and fully seated.
Lsm1EOL
Laser 1 is near end of
life.
Fault
Time to replace transmitter
sub-module 1.
Lsm1Temp
Laser 1 temperature is
out of spec.
Fault
Ensure transmitter sub-module
1 is within temperature specs
and laser has had a chance to
stabilize. Check chassis fans.
Lsm2Pres
Transmitter sub-
module 2 is missing.
Fault
Ensure transmitter sub-module
2 is installed and fully seated.
Lsm2EOL
Laser 2 is near end of
life.
Fault
Time to replace transmitter
sub-module 2.
Lsm2Temp
Laser 2 temperature is
out of spec.
Fault
Ensure transmitter sub-module
2 is within temperature specs
and laser has had a chance to
stabilize. Check chassis fans.