Nortel Networks 1000 User Manual

Page 558

558

NT8D14 Universal Trunk card

For delay dial or wink start modes, stop/go signaling (off hook/on hook
or battery/ground reversal) is returned by the Meridian 1 after receipt
of the seizure signal. The delay dial (stop) signal begins immediately
upon seizure and ends (go signal) 384 ms later. The wink start (stop)
signal begins 384 ms after seizure and ends (go signal) 256 ms later. The
far-end detecting the go signal may start pulsing after the standard delay
(normally 55 ms, minimum). Stop/go signaling, in addition to the signaling
function, serves as an integrity check to help identify a malfunctioning
trunk.

If required, the near-end can be configured to provide pseudo-answer
supervision at expiration of the end-of-dial timer. End-of-dial timer settings
are made at the EOD (non-DTMF) or ODT (DTMF) prompts in the Trunk
Route Administration program LD 16.

The operation represented in

Figure 178 "Two-way, loop DR, TIE trunk

call states - incoming call through senderized, tandem PBX from a
CO/FX/WATS trunk" (page 561)

also applies to incoming calls on a DID

trunk from a CO.

If the far-end is senderized, the near-end can operate in any mode:
Immediate Start (IMM), Delay Dial (DDL) or Wink (WNK) start, as assigned
at the STRI prompt in the Trunk Administration program LD 14. See

Figure

180 "Two-way, loop DR, tie trunk call states - incoming call through a
senderized, tandem PBX from a CO" (page 563)

Note:

If a ground start trunk, the outpulse towards office occurs after

ground detection. If a loop start trunk, the outpulse towards office
occurs one second later.

For immediate start, following the seizure signal, the far-end starts pulsing
after the standard delay (normally 65 ms, minimum).

For delay dial or wink start modes, stop/go signaling (off hook/on hook
or battery/ground reversal) is returned by the CS 1000 after receipt of
the seizure signal. The delay dial (stop) signal begins immediately upon
seizure and ends (go signal) 384 ms later. The wink start (stop) signal
begins 384 ms after seizure and ends (go signal) 256 ms later. The
far-end detecting the go signal starts pulsing after the standard delay
(normally 55 ms, minimum). Stop/go signaling, in addition to the signaling
function, serves as an integrity check to help identify a malfunctioning
trunk.

If required, the near-end can be configured to provide pseudo-answer
supervision at the expiration of the end-of-dial timer. End-of-dial timer
settings are made at the EOD (non-DTMF) or ODT (DTMF) prompts in the
Trunk Route Administration program LD 16.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008