Server Alarms - Avaya Support

Communication Manager Maintenance Object Repair Procedures
DIOD-TRK (DIOD Trunk)
MO Name in Log Alarm Level Initial Command to Run Full Name of MO
DIOD-TRK MAJ 1
MIN
WRN
Many trunk problems are caused by incorrect settings of parameters on the trunk group
administration screen. Settings must be compatible with the local environment and with
parameter settings on the far end. Refer to the Administrator Guide for Avaya Communication
Manager, 03-300509, for information about how to administer trunks. Refer to your Avaya
representative for the correct settings for administrable timers and other parameters on a
country-by-country basis.
Direct inward and outward dial (DIOD) trunks are 2-wire analog lines to the CO which support
the following services:
● Both incoming and outgoing CO calls
● DID trunk
● DID trunk and 1-way outgoing DIOD
TN429 DIOD trunk circuit packs and MM711 Analog Media Modules provide eight ports for
loop-start CO trunks and serve as an interface between the 2-wire analog CO line and the
4-wire TDM bus on the switch.
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.
Loop Start Operation
Idle State: Tip = ground, Ring = CO Battery
Outgoing Call
test port location DIOD Trunk
1. 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.
1. PBX Off-Hook (Seize Message): Closes the Tip-Ring Loop
2. CO Response: DC loop current + Dial tone
3. PBX On-Hook (Drop Message): Open Tip-Ring loop, no loop current
4. CO Response: CO goes to idle state (see Note)
710 Maintenance Alarms for Avaya Communication Manager, Media Gateways and Servers