Black Box CSU/DSU MS/DBU Manuel utilisateur

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

NOVEMBER 1993

MT134A-R2

CSU/DSU MS/DBU

RS CS TD RD CD ALM TST

ENTER

CANCEL

123

456

789

FCC AND IC RFI STATEMENTS

FEDERAL COMMUNICATIONS COMMISSION

AND

INDUSTRY CANADA

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio frequency energy and if not

installed and used properly, that is, in strict accordance with the manufacturer’s

instructions, may cause interference to radio communication. It has been tested

and found to comply with the limits for a Class A computing device in accordance

with the specifications in Subpart J of Part 15 of FCC rules, which are designed to

provide reasonable protection against such interference when the equipment is

operated in a commercial environment. Operation of this equipment in a

residential area is likely to cause interference, in which case the user at his own

expense will be required to take whatever measures may be necessary to correct

the interference.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from

digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

TRADEMARKS

Accunet®is a registered trademark of American Telephone and Telegraph

Company.

U.S. Sprint®is a registered trademark of U.S. Sprint Communication

Company.

All applied-for and registered trademarks are the property of their respective

owners.

Any other trademarks mentioned in this manual are acknowledged to be the property of the

trademark owners.

CSU/DSU MS/DBU

NORMAS OFICIALES MEXICANAS (NOM)

ELECTRICAL SAFETY STATEMENT

INSTRUCCIONES DE SEGURIDAD

1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de

que el aparato eléctrico sea operado.

2. Las instrucciones de seguridad y operación deberán ser guardadas para

referencia futura.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de

operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca

de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que

sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea

recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá

a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser

referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no

interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,

alfombra o superficie similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los orificios de

ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor

como radiadores, registros de calor, estufas u otros aparatos (incluyendo

amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del

tipo descrito en el instructivo de operación, o como se indique en el aparato.

NOM STATEMENT

12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización

del equipo no sea eliminada.

13. Los cables de la fuente de poder deben ser guiados de tal manera que no

sean pisados ni pellizcados por objetos colocados sobre o contra ellos,

poniendo particular atención a los contactos y receptáculos donde salen del

aparato.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las

recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas

de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea

usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean

derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

CSU/DSU MS/DBU

Contents

Chapter Page

1.0 Specifications............................................................................................ 6

2.0 Introduction ............................................................................................. 7

2.1 Overview............................................................................................. 7

2.2 Introduction to DDS ......................................................................... 7

2.3 Introduction to 4-Wire Switched 56 ................................................. 8

2.4 The Front Panel................................................................................. 8

2.5 The Rear Panel .................................................................................. 9

3.0 Installation ................................................................................................ 10

3.1 Unpack, Inspect, Power Up .............................................................. 10

3.2 Network Interface Connection......................................................... 10

3.3 DTE Data Connection.......................................................................12

3.4 Secondary Channel Connection ......................................................15

3.5 Configuration ....................................................................................16

3.5.1 Front Panel ..............................................................................16

3.5.2 “AT” Commands .....................................................................16

3.5.3 V.25 bis Commands.................................................................17

3.5.4 Remote Command..................................................................22

4.0 Operation..................................................................................................23

4.1 Manual Operation and Button Functions .......................................24

4.2 Menu Structure..................................................................................26

4.3 The Four Opening Menu Functions................................................26

4.4 General Operations and Menus .......................................................27

4.4.1 How to Use the Menus............................................................27

4.4.2 Menu Map ...............................................................................28

4.5 1=STATUS .........................................................................................30

4.6 2=TEST...............................................................................................31

4.6.1 1-LOCAL UNIT, Submenu of 2=TEST..................................33

4.6.2 2=REMOTE UNIT, Submenu of 2=TEST..............................47

4.7 3=CONFIG .........................................................................................51

4.7.1 1=NETWORK OPTIONS........................................................55

4.7.2 2=DTE OPTIONS....................................................................59

4.7.3 3=TEST OPTIONS..................................................................75

4.7.4 4=DIAL OPTIONS ..................................................................78

4.7.5 5=Manual Command ..............................................................86

TABLE OF CONTENTS

Chapter Page

Appendix A: Test Diagrams............................................................................88

Appendix B: Clocking Configurations...........................................................93

Appendix C: AT Commands ..........................................................................95

Appendix D: Configuration Profiles..............................................................97

Index.................................................................................................................99

CSU/DSU MS/DBU

1.0 Specifications

DTE Rates—Async: 2.4, 4.8, 9.6, 19.2, 38.4, 56, 57.6, and 64 Kbps;

Sync: 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 Kbps; Secondary channel

(Async or Sync): 75, 150, 300, 600, 1200, and 2400 bps

Interface—Primary V.35/M34, primary RS-232/DB25, auxiliary

RS-232/DB25, Telco—RJ-45

Indicators—RTS, CTS, TD, RD, CD, Alarm, Test

Power—115 VAC, 60 Hz, 8 watts

Size—2.3"H x 8.8"W x 11"D (5.8 x 22.4 x 27.9 cm)

Weight—31 lb. (14.1 kg)

CHAPTER 2: Introduction

2.0 Introduction

2.1 Overview

The CSU/DSU MS/DBU provides a reliable, high-speed data connection

from a customer’s Data Terminal Equipment (DTE) through Digital Data

Service (DDS) lines. The CSU/DSU MS/DBU also provides automatic

switched backup of the dedicated circuit. The unit is a 4-wire switched

56 DBU.

There are these easy methods for configuration:

1. A front panel dial pad and a Liquid Crystal Display (LCD) provide quick

and easy access to configuration menus.

2. “AT” commands or V.25 bis commands in band.

3. Remotely located CSU/DSU MS/DBU units can be configured by using

the front panel, AT commands, or

V.25 bis.

The CSU/DSU MS/DBU provides both V.35 and RS-232 electrical and

physical DTE interfaces to accommodate a variety of applications. A second

RS-232 interface is provided if the unit is configured for use on DDS with

secondary channel services.

To ensure a reliable connection, the unit features an extended receiver

capability that permits operation over long loops (3.4 miles or 5.5 km of

26 AWG at 56 Kbps).

The CSU/DSU MS/DBU is compatible with AT&T Accunet®and U.S.

Sprint®SW56 type services.

2.2 Introduction to DDS Overview

Digital Data Service (DDS) is a nationwide service that allows interconnection

and transport of data at speeds up to 64 Kbps. The local exchange carriers

provide the local loop service to DDS customers and may provide data for

routing Inter-LATA to an interexchange carrier. In DDS mode, the

CSU/DSU MS/DBU supports all DDS service rates yielding DTE rates of 2.4,

4.8, 9.6, 19.2, 38.4 (sync or async), 56, and 64 Kbps. An additional rate of

57.6 Kbps is available in async mode. At the service rate of 56K, the unit

can be configured to run slower DTE rates (async or sync) over the 56 Kbps

service. Secondary channel operation is supported at all service rates up to

56K, providing terminal rates of 75, 150, 300, 600, 1200, and 2400 bps.

The secondary rates available depend on the service rate configured.

CSU/DSU MS/DBU

2.3 Introduction to 4-Wire Switched 56

This dial-up 4-wire Digital Data Service allows customers to pay for data

connection only for the time the unit is active. The regional operating

companies provide the 4-wire local loop service to SW56 customers. Switched

56 service is supplied by AT&T, U.S. Sprint, and other interexchange carriers.

In SW56 mode, the CSU/DSU MS/DBU supports DTE rates of 2.4, 4.8, 9.6,

19.2, 38.4 (asynchronous or synchronous), and 56 Kbps (synchronous). The

additional DTE rate of 57.6 Kbps is available in async modes.

2.4 The Front Panel

Fig. 2-1. CSU/DSU MS/DBU Front View.

The Light Emitting Diodes (LEDs) are identified as follows:

• RS—Request to Send

• CS—Clear to Send

• TD—Transmit Data

• RD—Receive Data

• CD—Carrier Detect

• ALM—Alarm Indication

• TST—Test Mode

CSU/DSU MS/DBU

RS CS TD RD CD ALM TST SHIFT

QUICK

ENTER

CANCEL

CHAPTER 2: Introduction

2.5 The Rear Panel

The rear panel contains three data DTE connectors that provide primary-

channel V.35 or RS-232, and a secondary-channel RS-232 port (auxiliary EIA

232). An 8-pin telco jack, a captive power cord, and a power switch are also

located on the rear panel. Pin assignments for the DTE and network

connections are listed in Chapter 3.

Fig. 2-2. CSU/DSU SW56 Rear Panel.

Table 2-1. Key to Fig. 2-2.

Item Function

1. Auxiliary EIA-232 Secondary channel services

2. Power Switch Used to turn power on or off

3. Line 1 Connection to the dedicated circuit

4. Line 2 Connection to switched backup

5. Primary EIA-232 DTE interface

6. Primary V.35 High-speed digital data service

7. 115 VAC Connection Power-cord connection

LINE 1

AUXILIARY EIA-232

PRIMARY EIA-232

PRIMARY V.35

115 VAC

60Hz .15A

OFF

1 2

3 5 6 7

LINE 2

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