Lucent Technologies 555-233-119 TR-LN-BD (Trunk Line Board)

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-1152TR-LN-BD (Trunk Line Board)
3
TR-LN-BD (Trunk Line
Board)
The TN797 Analog Trunk and Line circuit pack p rovides 8 ports, any of whic h
may be administered as one of the following:
In the U.S., Canada, and like countries, all CO trunk ports of TN797 Analog Trunk
and Line circuit p ack should be ad ministered as ground star t (GS) trunks rather
than as loop start trunks, bec ause GS signaling provid es disconnect sup ervision,
and loop start does not. If for some reason, a port on the TN797 must be
administered as loop start, i t must be administered as one-way only – either
incoming or outgoing – not only at the DEFINITY switch, 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 doe s not support Neon Lamp
Message Waiting Indication (MWI). No maintenanc e of the terminal connec ted to
the Neon Analog Line circuit p ack is performed .
For ci rcui t pa ck p robl ems, r efer t o the “XXX-BD (co mmon p ort circ uit p ac k)”
maintenance documentatio n.
Table 3-507. TN797 Analog Trunk and Line circuit pack – port
administration
Function Group Type Trunk Type LED MWI
Central Office trunk
(CO)
co
fx
wats
loop start
ground start
CAMA/E911 trunk cama
Direct Inward
Dialing (DID) trunk did wink start immed start
Analog Line
on-or-off premises n/a n /a with/ without MWI
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