Nortel Networks Circuit Card 311 User Manual
Page 480
480
NT7D16 Data Access card
Large System
In Large Systems, the DAC is fully supported in IPE modules. These special
slots on the DAC have 24-pair cables pre-wired to the Main Distribution
Frame (MDF) in card slots 0-15. The IPE slot supports the first four ports
on the DAC if connections are made at the MDF. Most IPE modules can be
upgraded to wire 24-pair cables to the MDF for all card slots.
Note: For directions concerning the pinouts for the MDF, refer to
Communication Server 1000M and Meridian 1 Large System Installation
and Configuration (NN43021-310).
Before you begin, power down:
•
the IPE module only, if it is a DC-powered system
•
the entire column, if it is an AC-powered system
It is recommended that you begin the installation from the right hand side
(when facing the backplane), starting with slot 0 and moving towards slots
on the left side. If you wish to add more than six DACs, and require slots 8
through 15, remove the input/output (I/O) panel. Be aware that a full shelf
installation can take up to 3 hours. You need the following equipment to
upgrade the cabling:
•
A0359946 Amphenol cables
— These connectors include all the connector and screw apparatus.
— You need one cable for each DAC.
•
cable ties
•
wire cutters
•
A3/16 nutdriver
System compatibility
To support the 24-pair requirement of the DAC, some cabling may need to
be upgraded (
Table 189 "System option compatibility with the DAC" (page
). See "Upgrading systems" for more information.
Ports 0, 1, 2, and 3 of the DAC work in any standard 16-pair IPE slot
(connect directly to the MDF).
An upgraded backplane has three shrouds for each card slot. A backplane
that cannot be upgraded has only two shrouds for each card slot.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.