Paradyne 3615, COMSPHEREDUALFLOW 3615 Quick Reference Manual

COMSPHERE

DUALFLOW DSU

QUICK REFERENCE

Document No. 3615-A2-GL10-00

Copyright  1999 Paradyne Corporation.
All rights reserved.
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, and Service 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:

 Via the Internet: Visit the Paradyne World Wide Web site at

http://www.paradyne.com

 Via Telephone: Call our automated call system to receive current information via

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 [e-mail]. 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

TM

1

COMSPHERE DualFlow DSU

Quick Reference

Document Number 3615-A2-GL10-00
January 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

Service & Support → Technical Manuals → Subrate Digital Access Devices

.

Then select the following document:

3615-A2-GB20

COMSPHERE DualFlow Data Service Units 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

Precautions

Before installing your DSU, read the

Important Safety Instructions

on page 19.

!

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.

2

How to Change Hardware Straps

The Model 3615 DSU has a switch located behind its diagnostic control panel (DCP).
This switch contains two straps, one that controls the permissive or programmable
connection for the DBM, and one that controls the frame-to-signal grounds. Table 1
shows the DSU’s switch settings. Use the following procedure to set the switches.

 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.

496-14499-01

SWITCH 1

HINGE T AB

LOCA TIONS

FRONT BEZEL

COMSPHERE 3615

SNAP
TABS

Model 3615 DSU Hardware Switch Location

3

Table 1. Model 3615 DSU Switch Settings

Switch Position Switch Setting Function

ON

(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

ON Frame ground (FG) connected to signal

ground (SG)

S1-2

Off

(default)

FG connected to SG through 100 ohm
resistor

ON is toward the rear as you face the front of the DSU.
Off is toward the front.

Where to Place the DSU

The DSU must be placed within 6 feet of a dedicated grounded ac outlet that is
protected by a circuit breaker.

The distance between the DSU and its DTE must be within EIA-232-D/V.24 limits, or
V.35 limits if operating the DSU at speeds greater than 19.2 kbps.

 For the EIA-232 connector, the typical maximum distance is 50 feet at speeds less

than or equal to 19.2 kbps. If a longer distance is needed, use high quality, low
capacitance cable and ensure that the effective shunt capacitance of the circuit
(measured at the DSU and including the capacitance of the cable and the DTE)
does not exceed 2500 picofarads, as specified in EIA-232-D.

 For the V.35 connector, the maximum distance recommended between the DSU

and the DTE is nominally 1000 feet.

Allow 1 to 2 feet of clearance around the DSU for access and cable connections during
installation.

4

Installing the 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, 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 3615 DSU. Using
other transformers may result in personal injury or damage to the equipment.

Model 3615 DSU Electrical Connection

5

Power-Up Routine

When power is applied, the DSU:

H Runs a Device Test on itself and the DBM.

During the tests, all indicators on the DCP light briefly and the message Power-Up
Tests appears on the liquid crystal display (LCD).

H Displays the results of each test momentarily as Pass, Fail, or Abrt.

(

Abrt indicates
that the Device Test was aborted because a network loopback was in progress
during the power-up procedure.)

These tests take about 20 seconds to complete.

If the DSU or DBM fails this test, follow these steps.

" Procedure

1. Press the key to return to the top-level menu.

2. Select Local (F1 key).

3. Press the

key to scroll the

Confg

(Configuration) branch into view.

4. Press the function key directly below Confg.

5. Press the F1 key to select Opts (Configuration Options).

The

Load from

screen appears.

6. Press the

key to bring the factory-loaded unit configurations into view, and

select the appropriate configuration. Select:

— SyBC (Synchronous Backup for a Control DSU) for a control when the router

controls backup.

— SyBT (Synchronous Backup for a Tributary DSU) for a tributary when the

router controls backup.

— DiDg (Dial Diagnostics) for asynchronous router-management data to be sent

over the EIA-232 port via the DBM connection and user data over the V.35 port
via the DDS connection.

7. Press the F1 key to SAVE the selected configuration.
The

Save to

screen appears.

8. Save the selected configuration to Activ (F1 key).

9. Press the

key to return to the top-level menu, then select Local again.

10. Select Test (F3).
The

Run Test on

screen appears.

11. Select the device that Failed: the DSU or DBM.

12. Press the F2 key to run the Device Test again.

The device should pass.

13. Should the device fail, contact your service representative.

6

Connecting to the Network

The DSU provides three interfaces. One jack connects the DSU to the 6700 or 6800
Series NMS, one connects the DSU to the dial (or public switched telephone network –
PSTN) network, and one connects the DSU to the DDS network. Follow the appropriate
procedure when making your network connections.

Connecting to the NMS

A 3600 Hubbing Device is required to connect the control DSU to the 6700 or 6800
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 6-pin M6BJ cable into the 6-pin end of the 873A adapter.

4. Plug the D-type end of the 873A adapter into the appropriate 6700 or 6800 Series

NMS jack.

Refer to your COMSPHERE 6700 or 6800 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

TO

NMS (873A)

3000HUBBING DEVICE
MODEL #3000-F3-300

Model 3615 DSU NMS Connection