Tr-Ln-Bd (Trunk Line Board) - Avaya DEFINITY Server CSI Maintenance Manual

Maintenance Objects
TR-LN-BD (Trunk Line
Board)
The TN797 Analog Trunk and Line circuit pack provides 8 ports, any of which may
be administered as one of the following:
Table 518. TN797 Analog Trunk and Line circuit pack – port administration
Function
Central Office
trunk (CO)
CAMA/E911
trunk
Direct Inward
Dialing (DID)
trunk
Analog Line
on-or-off
premises
In the U.S., Canada, and like countries, all CO trunk ports of TN797 Analog Trunk
and Line circuit pack should be administered as ground start (GS) trunks rather
than as loop start trunks, because GS signaling provides disconnect supervision,
and loop start does not. If for some reason, a port on the TN797 must be
administered as loop start, it must be administered as one-way only – either
incoming or outgoing – not only at the Avaya DEFINITY Server, but also at the CO
switch. This is necessary to avoid collisions, i.e., "glare", and other highly
undesirable conditions.
The TN797 Analog Trunk and Line circuit pack does not support Neon Lamp
Message Waiting Indication (MWI). No maintenance of the terminal connected to
the Neon Analog Line circuit pack is performed.
For circuit pack problems, refer to the "XXX-BD (common port circuit pack)"
maintenance documentation.
1742
Issue 5 October 2002
Group Type Trunk Type
co
fx
ground start
wats
cama
wink start
did immed start
n/a
Continued on next page
LED MWI
loop start
n/a without MWI
with/