A
PPENDIX
C:T
ROUBLESHOOTING
C
HART
P
ACKET
L
IGHT
N
ETWORKS
PL-1000RO
3.3
I
NSTALLATION AND
C
ONFIGURATION
M
ANUAL
C
ONFIDENTIAL AND
P
ROPRIETARY
I
NFORMATION
.
A
LL RIGHTS RESERVED
.
P
AGE
191
Appendix C:
Troubleshooting Chart
This appendix describes some trouble symptoms and their corrective measures.
In this Appendix
Troubleshooting Chart ......................................................................... 191
C.1
Troubleshooting Chart
Identify the trouble symptoms in the following table and perform the actions
listed under "Corrective Measures" in the order given until the problem is
corrected.
Table 60: Troubleshooting Chart
No. Trouble Symptoms
Probable Cause
Corrective Measures
1
PL-1000RO does not turn
on.
No power
1.
Check that the power cable is
properly connected to the
PL-1000RO power connector.
2.
Check that both ends of the
power cable are properly
connected.
3.
Check that power is available at
the power outlet serving the
PL-1000RO.
Defective power supply
Replace the power supply unit.
Defective PL-1000RO
Replace the PL-1000RO.
2
The LOS LED of a device
connected to PL-1000RO is
lit.
Cable connection
problems
1.
Check all cables at the
PL-1000RO Tx and Rx port
connectors.
2.
Repeat check at the remote
equipment.
3.
Make sure that the optical
module used matches the fiber
type (single mode / multi-mode).
Fiber problem
1.
Use a short fiber to connect the
remote equipment Rx connector
to its Tx connector.
2.
If the problem is solved, connect
the Rx connector of the fiber to
the Tx connector at the
PL-1000RO location.
3.
If the problem persists, replace
the fiber.
Defective remote
equipment
Use a short fiber to connect the
remote equipment Rx connector to
its Tx.
If the LOS LED is still lit, the remote
equipment is defective.
A problem with the
PL-1000RO port state
Set the
Admin Status
of the
PL-1000RO uplink port to
Up
.
Defective optical module 1.
Check for optical module alarms.
2.
Replace the optical module.