Isdn-Trk (Ds1 Isdn Trunk) - Avaya G250 Maintenance Manual

Avaya Communication Manager controlled maintenance

ISDN-TRK (DS1 ISDN Trunk)

Table 85: ISDN-TRK (DS1 ISDN Trunk)
MO Name (in
Alarm Log)
ISDN-TRK**
ISDN-TRK
ISDN-TRK
Note: For Avaya G250/G350 Media Gateway systems, you must consult local
records for the location and designation of the equipment rack where the G250/
G350 is mounted.
For additional repair information, see also DS1-BD for TN767 ports and MM710.
*
A MAJOR alarm on a trunk indicates that alarms on these trunks are not
**
downgraded by the set options command.
Note:
Many trunk problems are caused by incorrect settings of parameters on the trunk
Note:
group administration form. Settings must be compatible with the local
environment and with parameter settings on the far-end. See "Administrator's
Guide for Avaya Communication Manager, 555-233-506", for the correct settings
for administrable timers and other parameters on a country-by-country basis.
Note:
Throughout this section, the term DS1 refers to the MM710 media module.
Note:
A DS1 ISDN trunk is a 64 Kbps bearer channel used to transmit digitized voice or data traffic.
These trunks, or B-channels, use a separate channel, the D-channel for call-control signaling.
This mode of operation is known as out-of-band signaling, as opposed to in-band robbed-bit
signaling, in which signaling is carried in the same channel as the voice or data traffic. One
D-channel, or ISDN signaling link (ISDN-LNK), carries signaling messages for several
B-channels, forming an ISDN signaling group (ISDN-SGR).
A B-channel may be a port on a MM710 series DS1 media module.
Two types of DS1 interfaces exist:
24 DS0 channels on a 1.544 Mbps link
●
31 DS0 channels + 1 framing channel on a 2.048 Mbps link
●
184 Maintenance for the Avaya G250 and Avaya G350 Media Gateways
Alarm Level Initial Command to
Run*
MAJOR* test port GGGVSpp l
MINOR test port GGGVSpp l
WARNING test port GGGVSpp l
Full Name of MO
DS1 ISDN Trunk
DS1 ISDN Trunk
DS1 ISDN Trunk