Chapter 29: Ntak79 2.0 Mb Pri Card - Avaya Nortel Communication Server 1000 Reference

Chapter 29: NTAK79 2.0 Mb PRI card

Contents
This section contains information on the following topics:
Introduction
Physical description
Functional description
Architecture
Introduction
The NTAK79 2.0 Mb Primary Rate Interface (PRI) card provides a 2.0 Mb interface and an
onboard D-channel handler (DCH). The NTAK79 card also includes an onboard clock controller
(equivalent to the NTAK20 Clock Controller) that can be manually switched into or out of
service.
The NTAK79 card does not support the NTBK51 downloadable D-channel handler
daughterboard.
You can install this card in slots 1 through 4 in the Media Gateway. The card is not supported
in the Media Gateway Expansion.
Note:
Up to three four trunk cards are supported in each Media Gateway.
Important:
Each Media Gateway that has a digital trunk must have a clock controller clocked to an
external reference clock.
Circuit Card Reference
on page 521
on page 522
on page 526
on page 526
July 2011 521