Contents - Avaya Nortel Communication Server 1000 Reference

Chapter 44: NTRB21 DTI/PRI/DCH TMDI

Contents

This section contains information on the following topics:
Introduction
Physical description
Functional description
Software description
Hardware description
Architecture
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 Cabinetto 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.
Circuit Card Reference
card
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