Troubleshooting Access Type TDM Channel Modules
LED
Name
LED Colors Potential Cause Solution for Troubleshooting
NW, NE Yellow off for
500 ms
ALS pulse received.
ALS pulse detected.
Network link is not coming up.
1 Verify that fiber cables are connected.
2 Check optical power levels. Refer to
“Finding Your Problem - Follow the Light” on
p.53 in this document.
Green flashing to
off
Module is acting as
standby in channel card
protection; protection
path is not available
Nothing - Channel module is working in the
Transmission Mode “Multiplexer NE & NW”.
Off flashing to
red
Pluggable transceiver
mismatch – None of the
data rates supported by
the installed pluggable
transceiver match the
data rates supported by
the channel module.
1 Compare the supported data rates of the
board with the pluggable transceiver data
rates.
2 Install the correct pluggable transceiver.
Pluggable transceiver
is not approved by
ADVA Optical
Networking - no traffic
Consult your ADVA Optical Networking
Representative about obtaining a pluggable
transceiver approved by ADVA Optical
Networking.
Off No Ch Interface
(Facility) provisioned on
that pluggable
transceiver.
1 Install an appropriate pluggable transceiver.
2 Provision the pluggable transceiver.
3 Enable the admin state - Configure the
pluggable transceiver admin state to “In
Service”.
4 Provision a Ch Interface (Facility) on the
pluggable transceiver.
5 Enable the Ch Interface (Facility) admin
state - Configure the Ch Interface (Facility)
admin state to “In Service”.
Ch Interface (Facility)
admin state is disabled.
Change Ch Interface (Facility) admin state.
Green Interface is active, valid
signal, valid hardware,
no alarms
No action is required.
Table 41: LED Status of the 4TCA-PCN-4GU(S)+4G
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 263
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