Fixed Gain-Controlled EDFA Modules
LED
Name
LED Colors Potential Cause Solution for Troubleshooting
1 Green Input power is in range;
output power reaches
target level; valid
hardware; interface is
disabled or unassigned
No action is required.
Gain of stage 1 reaches
target level and the
received power of stage
2 is sufficient; interface
is disabled or
unassigned
Off Interface admin state is
disabled.
1 In the case that the module is installed and
provisioned, check the admin state settings.
2 If the management displays “disabled”,
change the admin state to “In Service”,
“Management” or “Maintenance”.
Interface admin state is
unassigned.
The module is not provisioned. start the
provisioning process.
2 Red Input power is in range,
but gain of stage 1 does
not reach target level.
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 Input power is in range
and gain of stage 1
reaches target level, but
receive power of stage
2 is insufficient. The
amplifier midstage
attenuation is not OK.
Verify that the attenuation between the 2T port
and the 2R port is within specification.
Yellow flashing
to off
Input power is out of
range and as a result,
gain of stage 1 does not
reach target level.
Measure the optical power on the receiver
interface and compare the measured value with
the specification. Install appropriate attenuators
to fulfill the Optical Input Power requirements.
Table 85: LED Status of Double-Stage, Fixed Gain-Controlled EDFA Modules
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 449
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