Nortel Networks Option 11C User Manual

Page 419 of 544

Option 11C and 11C Mini

Technical Reference Guide

422

Chapter 25 — NT6D71 UILC line card

Contents

This section contains information on the following topics:

Reference List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Micro Controller Unit (MCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

IPE interface logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

U interface logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Reference List

The following are the references in this section:

•

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

Overview

The NT6D71 U Interface Line Card (UILC) supports the OSI physical layer
(layer 1) protocol. The UILC is an ANSI defined standard interface. The
UILC provides eight two-wire full duplex (not polarity sensitive) U interfaces
that are used to connect ISDN BRI compatible terminals over DSLs to the
Meridian 1. A description of the ISDN BRI feature is contained in Option
11C ISDN BRI Hardware Installation and Maintenance (553-3011-311).