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 10-160BRI-PORT (ISDN-BRI Port), ABRI-PORT (ASAI ISDN-BRI Port)
10
B-channels and 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 or
AT&T adjuncts. On a TN2198 each ISDN-BRI circuit pack can support up to 12
physical connections to a NT1, which, in turn, connects to 2 terminals.
This section covers the maintenance documentation for ISDN-BRI ports. Some of
the results of maintenance testing of ISDN-BRI ports may be affected by the
health of the ISDN-BRI Line circuit pack (BRI-BD), BRI endpoint (BRI-SET), or
ASAI adjunct (ASAI-AJ/LGATE-AJ) or AT&T adjunct (ATT_AJ/ATTE-AJ). These
interactions should be kept in mind when investigating the cause of ISDN-BRI
port problems. For more information on the circuit pack and endpoints, refer to
the BRI-BD (ISDN-BRI Line Circuit Pack) Maintenance documentation, the
BRI-SET (ISDN-BRI Endpoint) Maintenance documentation, and ASAI-AJ
(Adjunct-Switch Application Interface) Maintenance documentation, ATT-AJ
(AT&T Adjunct) Maintenance documentation, LGATE-AJ (Ethernet
Adjunct-Switch Application Interface) Maintenance documentation, and ATTE-AJ
(Ethernet AT&T Adjunct) Maintenance documentation.
Figure 10-6. ISDN-BRI Port Interactions
VOICE
TERMINAL
DEFINITY
COMMUNICATIONS
SYSTEM
CIRCUIT
PACK
P
O
R
T
VOICE
TERMINAL
BRI LINE
OR DATA
OR DATA
D-CHANNEL
B-CHANNEL
B-CHANNEL
LOGICAL CONNECTION
PHYSICAL CONNECTION