Nortel Networks 553-3001-211 manual NT6D70 Silc Line card, Isdn BRI

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NT6D70 SILC Line card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Introduction

The S/T Interface Line card (SILC) (NT6D70AA –48V North America, NT6D70 BA –40 V International) provides eight S/T four-wire full-duplex interfaces to connect ISDN BRI-compatible terminals over Digital Subscriber Loops (DSLs) to the System. A description of the ISDN BRI feature is contained in ISDN Basic Rate Interface: Installation and Configuration (553-3001-218).

You can install this card in any IPE slot.

Note: A maximum of four NT6D70 SILC cards are supported in an MG 1000S. A maximum of four NT6D70 SILC cards are supported in an MG 1000S Expansion.

ISDN BRI

ISDN BRI consists of two 64Kb/s Bearer (B) channels and one 16Kb/s Data

(D)channel. The BRI interface is referred to as a 2B+D connection as well as a Digital Subscriber Loop (DSL).

Circuit Card Description and Installation