Tbri-Pt (Isdn Trunk-Side Bri Port) - Avaya S8700 Maintenance Manual

Maintenance Object Repair Procedure

TBRI-PT (ISDN Trunk-Side BRI Port)

MO's Name (in
Alarm Log)
TBRI-PT
TBRI-PT
TBRI-PT
1. Where UU is the universal cabinet number (1–64), C is the carrier designation (A, B, C, or D), SS
is the carrier slot address where the circuit pack resides (01–10), and pp is the 2-digit port number
(1, 2, 3, and so forth).
This document describes the port maintenance features of the S8700 IP Connect
TN2185 Trunk-Side ISDN-BRI board. The circuit pack provides 8 S/T ISDN 2B+D
ports that interface to either the central office or another PBX.
The TN2185 circuit pack contains eight, 4-wire ports that interface to the network
at the ISDN S/T reference point over two 64-kbps channels (B1 and B2) and over
a 16-kbps signaling (D) channel. The B1 and B2 channels can be simultaneously
circuit-switched, or individually packet-switched. Only one channel per trunk can
be packet-switched due to PPE (Packet Processing Element) limitations. The
D channel is either circuit- or packet-switched. Packet switching uses the PPE to
combine every D channel into a single physical channel, which is then routed via
the concentration highway to the NCE (Network Control Element) and then to the
TDM bus. The circuit-switched connections have a Mu-law or A-law option for
voice and operate as 64-kbps clear data channels. The packet-switched
channels support the LAPD protocol and conform with the CCITT Q.920
Recommendations for D-channel signaling.
LEDs
The three LEDs on the circuit pack's faceplate indicate a board's status. When
illuminated, the red LED indicates a board's failure or a major or minor on-board
alarm. The green LED indicates that testing is in progress. The amber LED
indicates that the board is in use.
8-1076 Issue 1 May 2002
Alarm
Level Initial Command to Run
MAJOR test port UUCSS l r#
MINOR test port UUCSS l r#
WARNING test port UUCSS s r#
1
Full Name of MO
TBRI-PT
TBRI-PT
TBRI-PT
555-233-142