Avaya S8700 - DIOD-DS1 (DS1 DIOD Trunk)

Maintenance-Object Repair Procedures
555-233-143
8-562 Issue 1 May 2002
DIOD-DS1 (DS1 DIOD Trunk)
NOTE:
Many trunk problems are caused by incorrect settings of parameters on the
trunk group administration form. Settings must be compatible with the local
environment and with parameter settings on the far end. The Application
Notes section of that book shows the correct settings for administrable
timers and other parameters on a country-by-country basis.
A DS1 DIOD trunk provides a link for digitized voice or data communications
between the system and a central office switch. There are two types of DS1
interfaces:
■ 24 DS0 channels on a 1.544-Mbps link
■ 31 DS0 channels + 1 framing channel on a 2.048-Mbps link
■ 32-channel mode is supported only on TN464 circuit packs and beginning
with G3r V2 systems.
The DS1-DIOD MO monitors and maintains a DIOD trunk port on a TN464 UDS1
Interface circuit pack. See ‘‘UDS1-BD (UDS1 Interface Circuit Pack)’’ on page
8-1707 for more information about this circuit pack. The DS1 circuit pack
supports low-level CO trunk signaling interfaces for both ground-start and
loop-start trunks. This maintenance strategy covers the in-line errors log,
initialization tests, periodic tests, scheduled tests, demand tests, and alarm
resolution and escalation.
Three trunk service states are specified by DS1 DIOD trunk maintenance:
MO’s Name (in
Alarm Log)
Alarm
Level Initial SAT Command to Run Full Name of MO
DIOD-DS1 MAJOR
1
1. A Major alarm on a trunk indicates that alarms on these trunks are not downgraded by the set
options command and that at least 75 percent of the trunks in this trunk group are alarmed. For
more information, see the set options command.
test trunk group# member# l DS1 DIOD Trunk
DIOD-DS1 MINOR test trunk group# member# l DS1 DIOD Trunk
DIOD-DS1 WARNING test trunk group# member# DS1 DIOD Trunk
out-of-service The trunk is in a deactivated state and cannot be used for either
incoming or outgoing calls.
in-service The trunk is in an activated state and can be used for both
incoming and outgoing calls.
disconnect
(ready-for-service)
The trunk is in an activated state but can only be used for an
incoming call.