Nortel Meridian 1 Planning, Installation And Operating Instructions page 509

Page 490 of 536
Possible cause
Defective NTDK22
Fiber Daughter Board if
affected card is in
Expansion cabinet
553-3121-210 Standard 3.0
Chapter 25 — Fault locating and clearing
Action
Replace the Fiber Daughter Board on the NTMW01 SSC card.
Note: Reuse the Software Daughter Board attached to the original
SSC card. Call processing on the entire system is interrupted while
the SSC card is unseated.
Enable the fiber link by entering
LD 135
ENL FIL 1þ
If the fault remains replace the Fiber cable.
Enable the fiber link by entering
LD 135
ENL FIL 1þ
If the fault remains replace the NTMW10 Fbr Rcvr.
Note: Call processing for the Expansion cabinet is interrupted
while the Fbr Rcvr card is being replaced.
Enable the fiber link by entering
LD 135
ENL FIL 1þ
If the fault remains replace the NTMW01 SSC card.
January 1999
—continued—