Avaya 03-300430 User Manual

ATM-SGRP applies when ATM signaling groups have been administered on an ATM circuit 
pack as ATM trunks.

on page 598 outlines the differences between ATM 

interface circuit packs:

The TN2305 and TN2306 ATM Interface circuit boards are referred to as TN230X for the 
remainder of ATM-SGRP.
An ATM Signaling Group is a collection of B channels for which a given ISDN-PRI 
signaling-channel port (ATM D channel) carries signaling information.  ATM B channels 
(ATM-BCH) carry voice or data and are assigned to ISDN trunks.  For more information see 

The operation of the entire ATM signaling group depends on several other entities:

●

ATM-DCH signaling-channel port

●

TN230X Interface circuit pack where a D channel resides

●

System link to the processor via the packet bus

When there are problems with ATM-SGRP (ATM signaling group), also investigate:

●

●

●

●

1. grp# is the signaling group number (1–166); the test sequence can be either short or long.

ATM-SGRP

MIN

ATM-CES Signaling Group

ATM-SGRP

WRN

ATM-CES Signaling Group

TN2305

B and D 

channels

24- or 

32-channel

Multimode

Y

TN2306

B and D 

channels

24- or 

32-channel

Single-mode

Y