Demand test descriptions and error codes - Avaya Support

TBRI-TRK (ISDN Trunk-Side BRI Chel)
MO Name
in Log
TBRI-TRK 1
TBRI-TRK (ISDN Trunk-Side BRI Chel)
Alarm Level Initial Command to Run Full Name of MO
MAJ 2
MIN
test trunk location long ISDN Trunk-Side BRI
Chel
WRN test trunk location
1. For additional repair information for the TN2185 circuit pack, also see TBRI-BD (ISDN Trunk-Side BRI
Circuit Pack) and TBRI-PT (ISDN Trunk-Side BRI Port). For additional repair information for the MM720
BRI Media Module, see MG-BRI (BRI Trunk Media Module) and TBRI-PT (ISDN Trunk-Side BRI Port)
2. A MAJOR alarm on a trunk indicates that alarms on these trunks are not downgraded by set
options and that at least 75 percent of the trunks in this trunk group are alarmed.
The TBRI-TRK 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 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 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.
Note:
Note: Not all tests that run on circuit packs are applicable to media modules. These
tests will abort with error code 1412. This error can be ignored.
Issue 5 May 2009 949