Nortel 1000E Maintenance Manual page 95

Clearing MG 1000T Core-to-Expansion link faults
The Core-to-Expansion links in the MG 1000T are an integral part of the
MG 1000T functionality. A Core-to-Expansion link refers to the 100BaseT
connection between the SSC card in the MG 1000T Core and the SSC card in
an MG 1000T Expansion. The link provides speech path switching and
transmit and receive signaling messages between the SSC cards.
Core-to-Expansion link faults can cause system initializations, disable
conference capability, or disable all trunk connections on a card. The
Core-to-Expansion link faults can also make functional equipment appear
faulty.
CAUTION — Service Interruption
If you are running the MG 1000T Core and Expansions
in point to point, zero bandwidth must be NO.
If a Clock controller (T1 or E1) is in the MG 1000T, zero
bandwidth must be NO for that link. This allows the
MG 1000T Core to have a clock reference.
Communication Server 1000E
Clearing faults Page 95 of 162
Maintenance