Clearing Trunk Faults - Nortel 1000E Maintenance Manual

Clearing trunk faults

This section deals with trunk faults on either the MG 1000Es or MG 1000T.
Trunk circuit cards provide the interface between the system and Central
Office (CO) trunks, or between PBXs. The maintenance telephone can be
used to test trunks. Two types of trunk cards are considered:
• E&M Trunk: provides four trunk units, each of which can be connected
to a trunk configured to operate as one of the following:
— E&M signaling trunk
— Two-wire Tie trunk
— Four-wire Tie trunk
— Paging trunk
• Universal Trunk: provides eight trunk units, each of which can be
connected to a trunk configured to operate as one of the following:
— CO trunk
— Direct Inward Dialing (DID) trunk
— Two-way Tie, Dial Repeating (2DR)
— Two-way Tie, Outgoing Automatic Incoming Dial (OAID) trunk
— Recorded Announcement (RAN) trunk
— Music trunk
— Paging trunk
Trunk faults can cause problems (such as noise) on outside calls and can keep
calls from entering or leaving the CS 1000E system.
Clearing faults
Communication Server 1000E
Page 101 of 162
Maintenance