MRV Communications LambdaDriver 400, User Manual

Page: 169 / 207

LambdaDriver 400 & 800
ML46430, Rev. 07
October 2004
Table 22: Startup and Operation Troubleshooting (Cont’d)
No. Problem Probable Cause Corrective Actions
11 Management
Module LED
OSC
ACT off.
No connection
between the
Management Module
and host
(management
station).
12 1+1 Module P-RX
LED off.
IN P port not
receiving from
OUT P port of
remote LDx00.
13 1+1 Module S-RX
LED off.
IN S port not
receiving from
OUT S port of
remote LDx00.
14 1+1 Module
P-SEL LED off.
Primary link faulty.
15 1+1 Module
P-SEL and S-SEL
LEDs off.
Both primary and
secondary links
faulty.
16 ESCON
Multiplexer
Module
L1 , L2 ,
L3 , or L4 LED off
Input from local
ESCON line not
being received.
17 ESCON
Multiplexer
Module
L LED off.
No link to remote
ESCON Multiplexer
Module.
18
ESCON
Multiplexer
Module
A1 , A2 ,
A3 , or A4 LED
permanently off
Remote ESCON line
connection failure.
1. Verify that connection to the 1+1 or
Service Module is OK.
2. Verify that the host is connected to
the remote LDx00 Ethernet LAN, is
properly set up, and operational.
1. Verify that the fiber connected to the
local LDx00 IN P port (primary) is
connected to the remote LDx00
OUT P port (primary).
1. Verify that the fiber connected to the
local LDx00 IN S port (secondary) is
connected to the remote LDx00
OUT S port (secondary).
1. Verify that the fiber connected to the
local LDx00 OUT P port (primary) is
connected to the remote LDx00 IN P
port (primary).
1. Perform the corrective action
described in row 14, just above.
2. Verify that the fiber connected to the
local LDx00 OUT S port (secondary)
is connected to the remote LDx00
IN S port (secondary).
1. Check the connection of the local
ESCON cable to the ESCON
Multiplexer Module.
2. Check the integrity of the local
ESCON cable to the ESCON
Multiplexer Module.
3. Check power of signal from ESCON
line.
1. Check the connection of the cable
that is between the two LDx00s at
the
local ESCON Multiplexer
Module.
2. Check the connection of the cable
that is between the two LDx00s at
the
remote ESCON Multiplexer
Module.
3. Check the integrity of the cable
between the two LDx00s.
1. Check the local ESCON equipment.
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