Nortel Meridian 1 Planning, Installation And Operating Instructions page 520

Possible cause
If the PE circuit
card is in an
expansion cabinet,
the fiber optic
cable may be
defective
Option 11C Compact
Chapter 25 — Fault locating and clearing
Action
Note: Call processing for the Expansion cabinet is interrupted while the
is being replaced.
Fbr Rcvr card
Disable the Expansion cabinet by entering:
LD 32
DISS 1
Disable the Fiber Link by entering:
LD 135
DIS FIL 1
Replace the fiber optic cable.
Perform Local and Remote Loop-back tests on the link by entering:
LD 135
LLBK FIL 1
RLBK FIL 1
Enable the Fiber Link by entering:
LD 135
ENL FIL 1
Enable the Expansion cabinet by entering:
LD 32
ENLS 1
Enable the circuit card by entering
LD 32
ENLC c
("c" represents the card number)
Test the circuit card by entering
LD 30
TEST
(the TEST command ensures that all circuit cards are re-enabled in the
expansion cabinet)
—continued—
Planning, Installation, Fault Clearing and CCBR Guide
Page 501 of 536