Paradyne 3511 DSU - Manual

®
1 3000-A2-GZ41-50 July 1999
Rear Connector Plate and Modular DSU V.35 Adapter
Installation Instructions
Document Number 3000-A2-GZ41-50
July 1999
Overview
This document describes the installation procedure for the rear connector plate
(Feature Number 3000-F1-021) and the modular Data Service Unit (DSU) V.35
adapter.
A rear connector plate is used with a modular DSU or a COMSPHERE

3800
Series modem which has gold contacts on the rear edge of its circuit card
(Figure 1). When the rear connector plate is installed in a COMSPHERE 3000
Series Carrier, you can remove the modular DSU or 3800 Series modem without
disturbing the DTE cables attached to the rear connector plate at the back of the
carrier.
The rear connector plate has two 25-pin DTE connectors. One is a an
EIA-232-D/V.24 connector and the other is an ITU-T V.35 connector. If your cable
requires a 34-pin V.35 interface, you must use the V.35 adapter (Figure 3).
Gold Contacts
Modular DSU
25-Pin
EIA-232-D
Connector
25-Pin
V.35
Connector
Backplane
Connector
Figure 1. A Modular DSU and Rear Connector Plate