Paradyne COMSPHERE 3550 Series Manuale utente

COMSPHERE

3550 SERIES

DATA SERVICE UNITS

MODELS 3550 AND 3551

QUICK REFERENCE

Document No. 3550-A2-GL10-10

Printed in U.S.A.

Notice

This publication is protected by federal copyright law. No part of this publication may be

copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated

into any human or computer language in any form or by any means, electronic,

mechanical, magnetic, manual or otherwise, or disclosed to third parties without the

express written permission of Paradyne Corporation, 8545 126th Ave. N., Largo,

FL 33773.

Paradyne Corporation makes no representation or warranties with respect to the

contents hereof and specifically disclaims any implied warranties of merchantability or

fitness for a particular purpose. Further, Paradyne Corporation reserves the right to

revise this publication and to make changes from time to time in the contents hereof

without obligation of Paradyne Corporation to notify any person of such revision or

changes.

Changes and enhancements to the product and to the information herein will be

documented and issued as a new release to this manual.

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor directly for

any help needed. For additional information concerning warranty, sales, service, repair,

installation, documentation, training, distributor locations, or Paradyne worldwide office

locations, use one of the following methods:

Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be

sure to register your warranty there. Select

Service & Support

→

Warranty

Registration

Telephone: Call our automated system to receive current information by fax or to

speak with a company representative.

— Within the U.S.A., call 1-800-870-2221

— Outside the U.S.A, call 1-727-530-2340

Document Feedback

We welcome your comments and suggestions about this document. Please mail them

to Technical Publications, Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773,

or send e-mail to [email protected]. Include the number and title of this

document in your correspondence. Please include your name and phone number if you

are willing to provide additional clarification.

Trademarks

All products and services mentioned herein are the trademarks, service marks,

registered trademarks or registered service marks of their respective owners.

496-15149

COMSPHERE 3550 SERIES DATA SERVICE UNITS

MODELS 3550 AND 3551

Quick Reference

Document Number 3550-A2-GL10-10

March 1999

Product Documentation on the World Wide Web

We provide complete product documentation online. This lets you search the

documentation for specific topics and print only what you need, reducing the waste of

surplus printing. It also helps us maintain competitive prices for our products.

Complete documentation for this product is available at www.paradyne.com.

Select

Library

→

Technical Manuals

→

Subrate Digital Access Devices

Then select the following document:

3550-A2-GB20

COMSPHERE 3550 Series Data Service Units,

Models 3550 and 3551, User’s Guide

To request a paper copy of a Paradyne document:

Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

Outside the U.S.A., call 1-727-530-8623

Installation

!HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from

damage due to electrostatic discharge (ESD) during normal

operation. When performing installation procedures,

however, take proper static control precautions to

prevent damage to equipment. If you are not sure

of the proper static control precautions, contact

your nearest sales or service representative.

Before installing your DSU, read the

Important Safety Instructions

on page 23.

Be sure to register your warranty at www.paradyne.com. Select

Service & Support

→

Warranty Registration

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

Table 1. Model 3550 DSU Switch Settings

Switch Position Switch Setting Function

S1 1

(default) Permissive V.32 DBM transmit output level

of –9 dBm

S1-1 Off Programmable V.32 DBM transmit level

between –12 dBm and 0 dBm

S1 2

ON Frame ground (FG) connected to signal

ground (SG)

S1-2 Off

(default) FG connected to SG through 100 ohm

resistor

ON is to the rear as you face the front of the DSU.

Off is to the front.

Installing the Model 3550 DSU

Before installing the DSU, label the circuit breaker that protects the ac wall outlet, and

make sure that it is set to ON. Then, proceed with the installation.

Procedure

1. Place the DSU in its planned location. Make sure the ventilation slots are not

blocked.

2. At the rear of the DSU, insert the ac transformer’s circular plug into the interface

labeled POWER.

3. Plug the ac transformer’s 3-prong plug into the ac wall outlet.

!WARNING:

Only use the power transformer designed for the Model 3550 DSU. Using

other transformers may result in personal injury or damage to the equipment.

EIA-232-D/V.24

Interface

V.35 Interface

NMS Jack

DBM Jack

DDS Jack

Low Voltage

AC Power In

99-16243

Tabletop

AC Transformer

Connecting the Model 3550 DSU to the NMS

A 3600 Hubbing Device is required to connect the control DSU to the 6700 Series NMS.

When connected to the NMS, the DSU can be controlled and configured from the NMS

rather than from the DCP alone.

Procedure

1. Plug the 4-pin modular plug of the 3600 Hubbing Device into the DSU jack labeled

CC/DC.

2. Plug one end of an M6BJ cable into the hubbing device jack labeled CC IN/DC

OUT.

3. Plug the other end of the 8-pin M6BJ cable into the 8-pin end of the 873A adapter.

4. Plug the D-type end of the 873A adapter into the appropriate 6700 Series NMS

jack.

Refer to your COMSPHERE 6700 Series NMS documentation to control and configure

the DSU from the NMS.

496-14576a

NMS NETWORK

CONNECTION

CC/DC

HUBBING

DEVICE

LOW VOLTAGE

AC POWER IN

NMS (873A)

3000HUBBING DEVICE

MODEL #3000-F3-300

Connecting the Model 3550 DSU to the Dial Network (PSTN)

If your DSU is equipped with a V.32 DBM, follow these steps.

Procedure

1. Plug either end of the dial (analog) interface cable into the DSU jack labeled

BACKUP.

— Permissive

service – telephone cord with 6-pin modular RJ11C plug

— Programmable

service – telephone cord with 8-pin RJ45S plug

2. Plug the other end of the cable into the modular jack provided by the telephone

company, USOC RJ11C (permissive) or USOC RJ45S (programmable).

3. If your site has programmable service, verify that the DSU’s hardware strap S1-1 is

switched to the Off position.

Connecting the Model 3550 DSU to the DDS (or LADS) Network

NOTE:

Before connecting the DSU to the DDS network, ensure that approved primary

protectors have been installed on the circuit in accordance with Article 800 of the

National Electric Code, NFPA 70, in the United States and Section 60 of the

Canadian Electric Code, Part 1, in Canada.

Follow these steps.

Procedure

1. Plug the DDS network interface cable into the DSU jack labeled LINE.

— U.S.

– select either end of the cable

— Canada – select the 8-pin end

2. Plug the other end of the cable into the modular jack (USOC RJ48S) provided by

the circuit provider.

If the remote DSU is also connected to the network, the DSU’s green OK indicator lights

and the Alrm indicator goes off. The Health and Status screen no longer displays a

No Signal

message.

If connecting the DSU to a LADS network, note that there are distance limitations that

govern the use of DSUs on the network. See the User’s Guide for specific information.

Connecting the Model 3550 DSU to a DTE

The DSU’s rear panel has both a 25-pin EIA-232-D/V.24 connector and a 34-pin ITU-T

V.35 connector (used for higher operating speeds). You can use either interface.

When the unit is equipped with a TDM/Flex, either of these interfaces can be used as

Port 1. The TDM/Flex provides an additional interface to be used as Port 2. This is a

D-type connector. If the port is to operate at a speed greater than 19.2 kbps, use the

V.35 adapter to provide an interface between the TDM/Flex’s D-type connector and the

DTE cable’s V.35 connector.

Be sure to select the appropriate cable (EIA-232 or V.35) for your application.

Procedure

1. Connect the plug end of the DTE cable to Port 1, either the EIA-232-D or the V.35

connector. Tighten the two holding screws.

2. Connect the other end of the cable to the appropriate port on the computer or DTE.

Tighten any holding screws.

3. If necessary, activate the port to match the interface: EIA-232 or V.35. The default

setting is EIA-232.

V.35 Interface

(Port 1)

EIA-232-D/V.24

Interface (Port 1) EIA-232

Interface

(Port 2)

DSU with

TDM/FLEX

99-16299

To DTE

EIA-232-D/V.24

Interface

V.35

Interface

Low Voltage

AC Power In

To DTE

DSU

V.35 Adapter

V.35 Cable

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