Nortel Meridian 1 Planning, Installation And Operating Instructions page 505

Page 486 of 536
Possible cause
Defective NTMW01
SSC card
Defective Expansion
cabinet
553-3121-210 Standard 3.0
Chapter 25 — Fault locating and clearing
Action
Install a new NTMW01 SSC card.
Note: Reuse the daughter boards attached to the original
SSC card . Call processing on the entire system is interrupted while
the
SSC card
Enable and test the card by entering
LD 30
TEST
Wait for an OVD message.
If the card tests "OK", the SSC circuit card was defective.
If after a few minutes you receive an OVD message, and this
system is not equipped with an expansion cabinet, the shelf
backplane is defective. Replace the main cabinet.
If this system is equipped with an expansion cabinet, go to the next
possible cause.
Replace cabinet.
Enable and test the card by entering
LD 30
TEST
January 1999
is being replaced.
NTMW01