Fixed Gain-Controlled EDFA Modules
LED
Name
LED Colors Potential Cause Solution for Troubleshooting
Mod Off Module admin state is
“unassigned”.
Module is not provisioned, start the provisioning
process.
Green Module provisioned,
admin status
“Maintenance”,
“Management” or “In
Service”
No action is required.
1 Red Input power is in range
and the amplifier
midstage attenuation is
OK, but the amplified
output power does not
reach target level.
(Gain of stage 2 does
not reach target level.)
1 Measure the optical input power on the
receiver connector to verify that the value is
indeed within specifications.
2 Remove and reinsert the module.
If the condition continues the module should be
returned to ADVA Optical Networking for repair.
Red flashing to
off
EDFA off due to EOP
(Excessive Output
Power) event.
Measure the optical input power on the receiver
connector to verify that the value is within
specifications.
If the condition continues once the module has
been removed and inserted, it should be returned
to ADVA Optical Networking for repair.
Yellow Optical Input Power out
of range
1 Measure the optical input power on the
receiver connector and compare the
measured value with the specification.
2 Install appropriate attenuators to fulfill the
Optical Input Power requirements.
Laser EOL Replace module.
Laser Degrade Replace module.
Yellow flashing
to off
Input power is in range,
but the amplifier
midstage attenuation is
not OK - amplified
output power does not
reach target level.
(Gain of stage 2 does
not reach target level
due to incorrect
midstage attenuation.)
Verify that the attenuation between port 2-T and
port 2-R is within specification.
Table 85: LED Status of Double-Stage, Fixed Gain-Controlled EDFA Modules
448 FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A
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