Co-Trk (Analog Co Trunk) - Avaya S8700 Maintenance Manual

For multi-connect configurations

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Maintenance-Object Repair Procedures

CO-TRK (Analog CO Trunk)

MO's Name (in

UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC). C is the carrier

designation (A, B, C, D, or E). SS is the number of the slot where the circuit pack resides (01–21).

pp is the 2-digit port number (01, 02, 03 ...).

A MAJOR alarm on a trunk indicates that alarms on these trunks are not downgraded by the set

options command and that at least 75% of the trunks in this trunk group are alarmed.

If ATMS testing is enabled, check the error log for ATMS errors 3840 and 3841. If

the error log indicates that measurements exceeded acceptable thresholds, and

no other trouble is found with test trunk, run the ATMS test call with test

analog-testcall port UUCSSpp full.

Many trunk problems are caused by incorrect settings of parameters on the

trunk group administration form. Settings must be compatible with the local

environment and with parameter settings on the far end.

Analog CO trunks are 2-wire analog lines to the CO that support both incoming

and outgoing calls. CO trunk circuit packs have eight ports, each of which

provides an interface between the 2-wire CO line and the 4-wire TDM bus. The

system supports the following CO trunk circuit packs:

The following sequences show the interactions between the switch and the CO

during call setup for both loop-start and ground-start trunks.

Issue 1 May 2002

Initial Command to Run

test port UUCSSpp l

test port UUCSSpp l

test port UUCSSpp l

Full Name of MO

Analog CO Trunk