User Guide

DEFINITY Enterprise Communications Server Release 5

Maintenance and Test for R5vs/si

555-230-123

Issue 1

April 1997

Maintenance Object Repair Procedures

Page 10-188BRI-SET, ASAI-ADJ, BRI-DAT

Figure 10-9 illustrates the physical connection (solid line) between an ISDN-BRI

Circuit Pack and a voice or voice/data set. Each physical connection allows for

two B-channels, as stated above, plus one D-channel. Each ISDN-BRI circuit

pack can support up to 12 of these PHYSICAL connections to different voice and

voice/data sets or ASAI and AT&T adjuncts.

Figure 10-9. ISDN-BRI Set Interactions

This section contains the ISDN-BRI Set, ASAI Adjunct, and AT&T Adjunct

Maintenance documentation. Some of the results of maintenance testing of the

ISDN-BRI Set or the ASAI and AT&T Adjunct may be affected by the health of the

ISDN-BRI circuit pack and Port. These interactions should be kept in mind when

investigating the cause of ISDN-BRI Set problems.

BRI Line

Circuit Pack

D-Channel

B-Channel

PHYSICAL CONNECTION

VOICE

or DATA

SET

Logical Connection

VOICE

or DATA

SET

PBX

Physical Connection