Troubleshooting Core Type TDM Channel Modules
LED
Name
LED Colors Potential Cause Solution for Troubleshooting
Cx Yellow Loss of signal • Verify that fiber cables are connected.
• Check optical power levels. Refer to the
procedure, “Finding Your Problem -
Follow the Light” on p.53 in this
document.
Optical Input Power out of
range
1 Measure the optical input power on
receiver connector.
2 Compare the measured value with the
pluggable transceiver module input
power specification.
3 Adjust the optical input power (i.e., install
the appropriate attenuators) to fulfill the
pluggable transceiver optical input power
requirements.
Loss of output power -
Power non-existing or
below the defined minimum
level is detected at the
output.
(Normally a consequence of
loss of optical input power.
Also may be due to
failure/degeneration of an
internal component or
splice.)
Refer to “Finding Your Problem - Follow the
Light” on p.53 in this document.
Yellow flashing
to off
In a client channel card pro-
tection configuration, the
protection path cor-
responding to this standby
port is unavailable.
Refer to “Finding Your Problem - Follow the
Light” on p.53 in this document.
Off flashing to
red
The installed pluggable
transceiver does not match
the provisioned type. MEA-
ACCEPT condition is
raised.
1 Compare the supported data rates of the
module with the pluggable transceiver
data rates.
2 Install the correct pluggable transceiver.
The installed pluggable
transceiver is not approved
by ADVA Optical
Networking - no traffic.
MEA-APPROVEand MEA-
PHYS conditions are
raised.
Contact your Technical Services
Representative to obtain a pluggable
transceiver approved by ADVA Optical
Networking.
Table 26: LED Status of the 10TCC-PCN-40GU+100G
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 153