Nortel Networks Circuit Card 311 User Manual
Page 389
389
NT6D80 MSDL card
Contents
This section contains information on the following topics:
"Physical description" (page 390)
"Functional description" (page 391)
"Engineering guidelines" (page 396)
"Replacing MSDL cards" (page 414)
"Symptoms and actions" (page 415)
"System disabled actions" (page 415)
Introduction
This document describes the Multi-purpose Serial Data Link (MSDL) card.
This card provides multiple interface types with four full-duplex serial
I/O ports that can be independently configured for various operations.
Peripheral software downloaded to the MSDL controls functionality for each
port. Synchronous operation is permitted on all MSDL ports. Port 0 can be
configured as an asynchronous Serial Data Interface (SDI).
An MSDL card occupies one network card slot in Large System Networks,
or Core Network modules and communicates with the CPU over the CPU
bus and with I/O equipment over its serial ports. It can coexist with other
cards that support the same functions. For example, cards supported with
the MSDL (NT6D80) are QPC757 (DCHI), QPC513 (ESDI), QPC841 (SDI)
and NTSD12 (DDP).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.