Nortel Networks Circuit Card 311 User Manual
598
NT8D14 Universal Trunk card
Ground start operation is configured in software and implemented through
software download messages. In the idle state, the tip conductor from the
CO is open and a high-resistance negative battery is present on the ring
lead.
software download messages. In the idle state, the tip conductor from the
CO is open and a high-resistance negative battery is present on the ring
lead.
Ground start operation is configured in software and implemented through
software download messages. In the idle state, the tip conductor from the
CO is open and a high-resistance negative battery is present on the ring
lead.
software download messages. In the idle state, the tip conductor from the
CO is open and a high-resistance negative battery is present on the ring
lead.
Ground start operation is configured in software and implemented through
software download messages. In an idle state, the tip conductor from the
CO is open and a high resistance negative battery is present on the tip
of the trunk.
software download messages. In an idle state, the tip conductor from the
CO is open and a high resistance negative battery is present on the tip
of the trunk.
Incoming calls
In an incoming call, after ground is detected on the tip, the universal trunk
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path. See
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path. See
and
In an incoming call, after ground is detected on the tip, the universal trunk
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path.
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path.
See
and
In an incoming call, after ground is detected on the tip, the universal trunk
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path. See
card scans for a ringing detection signal before presenting the call to an
attendant and tripping the ringing. When the attendant answers, a low
resistance is placed across the tip and ring conductors, which trips CO
ringing and establishes a speech path. See
and
.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.