AT&T Paradyne COMSPHERE 3900 Series Installation guide

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COMSPHERE 3900 Series Modems

Dual Ferrite Choke Installation Instructions

Document Number 3910-A2-GK46-00

March 1994

Overview

This document describes the procedure for installing two ferrite chokes onto an RS-232 (V.24) cable.

CAUTION

All supplied ferrite chokes must be installed following these

instructions to ensure compliance with regulatory rules.

Installation

Use Figure 1 and the following procedure to install two ferrite chokes onto one cable.

1. Open the first ferrite choke and place it around the cable as close to the cable connector as possible.

Ferrite chokes must be installed on RS-232 (V.24) cables that attach directly to the carrier.

2. Close the two halves around the cable and snap the choke shut, pressing down on the plastic latch to

secure it in place.

3. Repeat Steps 1 and 2 for the second ferrite choke.

4. Add a tie wrap as shown to prevent the ferrite chokes from slipping down the cable.

RS-232 (V.24) Connector (typical)

Ferrite Choke

Plastic Latch

Press together

Cable

NOTE: This connector

attaches directly to the

carrier.

Carrier DTE Connector

Ferrite Choke

Tie Wrap

Figure 1. Ferrite Choke Installation