LambdaDriver 400 & 800
ML46430, Rev. 07
October 2004
Table 22: Startup and Operation Troubleshooting (Cont’d)
No.
Problem
Probable Cause
Corrective Actions
4
Transponder
Module LED
LASER OFF
on-
red.
Cable or port malfunction.
5
Transponder
Module LED
TMP
ALRM
on-red.
Insufficient cooling of the
Transponder.
6
Management
Module LED
PWR
off.
Power cannot reach
module.
7
Management
Module LED
ACT
(for Mgt/SNMP)
off.
No connection between
the Management Module
and host (management
station).
8
Management
Module LED
LINK
(for
ETH
) off.
No connection between
the Management Module
and Ethernet LAN.
9
Management
Module LED
ACT
(for
ETH
) off.
No connection between
the Management Module
and host (management
station).
10
Management
Module LED
OSC
LINK
off.
No connection between
the Management Module
and remote LDx00
Ethernet LAN.
1. Check connections and
integrity of cable
interconnecting transponder
WDM TX
port to the Mux,
Demux, or OADM in the same
LDx00.
2.
Clean fiberoptic connectors as
described in
Appendix E:
Cleaning Optical Connectors.
3. Temporarily connect the Mux,
Demux, or OADM to another
transponder to determine if the
transponder port is faulty.
1. Verify that no obstacles to
cooling air flow are present
around the LDx00.
2. Verify that the fans are running.
1. Verify that the LDx00 is
powered on, i.e., Power Supply
LED
PWR
is on.
2. Verify that Management
Module is properly seated in
the LDx00 chassis.
1. Verify that connection to the
Ethernet LAN to which the host
is connected is OK. (The host
can be connected to the local
LDx00 or to a/the remote
LDx00.)
2. Host is connected to the
Ethernet LAN.
3. The host is correctly setup and
operational.
1. Verify that connection to the
Ethernet LAN is OK.
2. Verify that connection to the
Ethernet LAN is OK.
3. Verify that the DTEs on the
Ethernet LAN are connected.
1. Verify connection to remote
LDx00, i.e., the fiberoptic cable
interconnects both the local
LDx00 and remote LDx00(s).
2. Verify that the DTEs on the
remote LDx00 Ethernet LAN(s)
are connected.
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