Page261 of 544
Option11C and 11C Mini TechnicalReference 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 descriptio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Micro Processing Un it (MPU) . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
High-Level Data Link Controller (HDLC) . . . . . . . . . . . . . . . . . . . . . . 263
Meridian 1 CPU to MI SP bus interface . . . . . . . . . . . . . . . . . . . . . . . . . 263
MISP network bus in terface . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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).