Nortel Networks Circuit Card 311 User Manual
Page 1053
1053
NTRB21 DTI/PRI/DCH TMDI card
Contents
This section contains information on the following topics:
"Physical description" (page 1055)
"Functional description" (page 1063)
"Software description" (page 1065)
"Hardware description" (page 1065)
Introduction
The NTRB21 (DTI/PRI/DCH) TMDI digital trunk card is a 1.5 Mb DTI or PRI
interface to the CS 1000E, CS 1000M Cabinet, and Meridian 1 PBX 11C
Cabinet. The NTRB21 card has a built-in downloadable D-channel.
The TMDI feature supports the software changes required for CS 1000E,
CS 1000M Cabinet, and Meridian 1 PBX 11C Cabinet to use the TDMI
pack. The software includes:
•
a prompt to replace a function that was handled by a dip switch on the
NTAK09
•
an extra loadware application to handle Layer 1
•
a change to the existing loadware files into 32 bit format from the original
16 bit format
To provide CEMUX communication with the card, changes are also required
to create an I/O entry for the card.
You can install this card in slots 1 through 4 in the Media Gateway. The card
is not supported in the Media Gateway Expansion. Up to four digital trunks
are supported in each Media Gateway.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.