Demand test descriptions and error codes - Avaya Support

TBRI-PT (ISDN Trunk-Side BRI Port)
MO Name in Log Alarm Level Initial Command to Run Full Name of MO
TBRI-PT MAJ
MIN
test port location l ISDN Trunk-side BRI
port
WRN test port location
The TBRI-PT maintenance object is a port on both the TN2185 Trunk-Side BRI circuit pack and
the MM720 BRI Media Module. The term circuit pack in the following description refers to
both the circuit pack and the media module.
The location on the TN2185 Trunk-Side BRI circuit pack is the UUCSSpp designation.
The location on the MM720 BRI Media Module is designated by GGGVSPP. Consult local
records for the location and designation of the equipment rack where the Media Gateway is
mounted.
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 chels (B1 and B2) and over a 16-kbps signaling (D) chel.
The B1 and B2 chels can be simultaneously circuit-switched, or individually packet-switched.
Only one chel per trunk can be packet-switched due to PPE (Packet Processing Element)
limitations. The D-Chel is either circuit- or packet-switched. Packet switching uses the PPE to
combine all D-Chels into a single physical chel, 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 chels.
The packet-switched chels support the LAPD protocol and conform with the CCITT Q.920
Recommendations for D-Chel signaling.
The MM720 BRI Media Module provides 8 S/T ISDN 2B+D ports that interface to either the
central office or another PBX. The MM720 contains eight, 4-wire ports that interface to the
network at the ISDN S/T reference point over two 64 Kb/s chels (B1 and B2) and over a 16Kb/s
signaling (D) chel. The B1 and B2 chels can be simultaneously circuit switched, or individually
packet switched. Only one chel per trunk can be packet switched due to Packet Processing
Element (PPE) limitations. The D-chel is circuit switched. The circuit-switched connections have
a Mu-law or A-law option for voice and operate as 64Kb/s clear data chels.
942 Maintenance Alarms for Communication Manager, Media Gateways and Servers