Cisco Cisco OptoStar II 1550nm EDFA Installation Guide
General Troubleshooting Information, Continued
Troubleshooting
If the red alarm indicator on the front panel of the module is illuminated, check
the OptoStar II ICIM display, the OptoStar II console, or the OptoStar II NMS for
alarm code. See Alarm Code List (on page 3-11) to determine the cause of the
alarm. See the table below.
the OptoStar II ICIM display, the OptoStar II console, or the OptoStar II NMS for
alarm code. See Alarm Code List (on page 3-11) to determine the cause of the
alarm. See the table below.
Alarm
Possible Cause
Servicing Instruction
Low Optical Input
Power
The forward optical
transmitter module
has low optical
output power
Connector between
the forward optical
transmitter module
and the optical
distributor mismatch
Connector between
the forward optical
transmitter module
and the optical
distributor contains
dusts or
contaminants
Link optical
distributor failure
Optical link loss
exceeds the design
value
Fiber connector to the
forward receiver
module does not
match the module
connector
Inspect the optical
output power of the
forward optical
transmitter module to
make it within the
correct range
Check if each optical
connector matches
Make sure all the mating
surfaces of the fiber are
clean
Check if link optical
distributor has optical
signals
Use an optical power
meter to measure if the
optical input power
meets the specifications.
The range of optical
input power is -3. 0 dBm
~ + 3. 0 dBm
If the problem persists,
contact the manufacturer
for servicing
High Optical Input
Power
The forward optical
transmitter module
has high optical
output power
Link connection error
Check the optical output
power of the forward
optical transmitter
module
Make sure the link
connection is correct
If the problem persists,
contact the manufacturer
for servicing
Continued on next page
4-4
Troubleshooting
OL-29662-03