Nortel Networks Option 11C User Manual

Page 261 of 544

Option 11C and 11C Mini

Technical Reference Guide

264

Chapter 10 — NTBK22 MISP card

Contents

This section contains information on the following topics:

Reference List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

NTBK22 Multi-Purpose ISDN Signaling Processor (MISP) . .. . . . . . . 261

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Micro Processing Unit (MPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

High-Level Data Link Controller (HDLC) . . . . . . . . . . . . . . . . . . . . . . 263

Meridian 1 CPU to MISP bus interface . . . . . . . . . . . . . . . . . . . . . . . . . 263

MISP network bus interface . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Reference List

The following are the references in this section:

•

Option 11C ISDN BRI Hardware Installation and Maintenance (553-
3011-311)

Overview

NTBK22 Multi-Purpose ISDN Signaling Processor (MISP)

The NTBK22 Multi-Purpose ISDN Signaling Processor (MISP) card is
specific to Option 11C system and is supported on the Main cabinet. It
performs Data Link (Layer 2) and Network (Layer3) processing associated
with ISDN BRI and the OSI protocol. A description of the ISDN BRI feature
is contained in Option 11C ISDN BRI Hardware Installation and
Maintenance (553-3011-311).