Paradyne COMSPHERE 3921PLUS User manual

You have accessed an older version of a
Paradyne product document.
Paradyne is no longer a subsidiary of
AT&T. Any reference to AT&T Paradyne is
amended to read Paradyne Corporation.

P a
r
a dyn e
COMSPHERE 3900 Series Modems
Model 3921
Plus
Ferrite Choke Installation Instructions
Document Number 3920-A2-GK40-00
April 1995
Overview
This document describes the procedure for installing a ferrite choke 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 the ferrite choke onto one cable.
1. Open the ferrite choke and place it around the cable as close to the cable connector as possible. The
Ferrite choke 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. Add a tie wrap as shown to prevent the ferrite choke from slipping down the cable.
Figure 1. Ferrite Choke Installation