Overview - Meridian Nortel 1 Option 11C Technical Reference Manual

Nortel networks network system technical reference guide
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Chapter 31 - NTAK79 2.0 Mb PRI card
Contents

Overview

This section contains information on the following topics:
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
DS-30X interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
Signaling interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
Carrier interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
Carrier grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
CEPT transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486
Slip control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486
D-channel support interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486
Card-LAN interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
Clock controller interface . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
The NTAK79, which can be located in the main and IP expansion cabinets,
provides a 2.0 Mb PRI interface and an onboard D-channel handler (DCH)
for the Option 11C system. This circuit card also includes onboard circuitry
equivalent to the NTAK20 Clock Controller that can be manually switched in
or out of service.
Option 11C and 11C Mini
Page 479 of 544
Technical Reference Guide

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