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Paradyne 3550, 3551 Changing the Model 3550 DSU Hardware Straps

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Changing the Model 3550 DSU Hardware Straps

The Model 3550 DSU has a switch located behind its diagnostic control panel (DCP).

This switch contains two straps, one that controls the permissive or programmable

connection when a DBM is installed, and one that controls the frame-to-signal grounds.

Table 1 shows the DSU’s settings.

Procedure

1. With your thumbs under the edge of the front bezel, firmly press upward to lift the

bezel from the tabs securing it in place.

2. Swing the front bezel up and set the bezel aside.

3. Refer to Table 1 to determine which switch needs to be changed. Then, using a

small instrument, carefully change the position of the switch.

4. Reinsert the front bezel’s hinge tabs into position and swing the bezel down. Snap

the bezel back into place.

496-14457-01

SWITCH 1 HINGE TAB

LOCATIONS

FRONT BEZEL

COMSPHERE 3550

SNAP

TABS

Contents

Main Copyright 1999 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice Warranty, Sales, Service, and Training Information Service & Support Warranty Registration Document Feedback COMSPHERE 3550 SERIES DATA SERVICE UNITS MODELS 3550 AND 3551 Quick Reference Document Number 3550-A2-GL10-10 March 1999 Warranty Registration Service & Support Important Safety Instructions Changing the Model 3550 DSU Hardware Straps Table 1. Model 3550 DSU Switch Settings Installing the Model 3550 DSU Connecting the Model 3550 DSU to the NMS NMS NETWORK CONNECTION Connecting the Model 3550 DSU to the Dial Network (PSTN) Connecting the Model 3550 DSU to the DDS (or LADS) Network NOTE: No Signal Connecting the Model 3550 DSU to a DTE Connecting the Model 3550 DSUs Port 2 General Configuration Options Changing the Model 3551 DSU Hardware Straps Table 2. Model 3551 DSU Switch Settings Table 3. Model 3551 DSU Jumper Straps Installing the Model 3551 DSU Page 25-Pin Connector V.35 Adapter V.35 Cable Thumbscrews . Connecting the Model 3551 DSU to the NMS COMSPHERE 3000 Series Carrier Installation Manual Connecting the Model 3551 DSU to the Dial Network (PSTN) COMSPHERE 3000 Series Carrier Installation Manual Connecting the Model 3551 DSU to the DDS (or LADS) Network To Connect the SDCP to a DSU Carr:Slot: 1: 01 A 1:0 2A 1:01 A DSU 9.6 C Local Remot Msg Addressing the Unit NOTES: . Power-Up Routine " Run Test on Save to Load from Configuration Options Page Page Page !Important Safety Instructions Notices Government Requirements Notice to Users of the Digital Data Service Warranty, Sales, Service and Training Information Interface Code Data Rate Technical Specifications (bps)