Nortel Networks 1000 User Manual
Page 985
985
.
QPC841 Quad Serial Data Interface
card
Contents
This section contains information on the following topics:
“Physical description” (page 986)
“Functional description” (page 987)
“Connector pin assignments” (page 988)
“Configuring the QSDI card” (page 990)
Introduction
The QPC841 Quad Serial Data Interface (QSDI) card provides four
RS-232-C serial ports between the system and external devices. The
QSDI card plugs into a slot in the common equipment area of any system.
The Quad Serial Data Interface card is normally used to connect the
system to its administration and maintenance terminal. It is also used
to connect the system to a background terminal (used in the Hotel/Motel
environment), a modem, or the Automatic Call Distribution (ACD) and Call
Detail Recording (CDR) features.
The QSDI card is compatible with all existing system software. It does not
support 20 mA current loop interface.
QSDI cards are housed in the following modules:
•
NT5D21 Core/Network module (slots 0 through 7)
•
NT6D39 CPU/Network module (slots 1 through 9, and 13)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.