Black Box ME500A Bedienungsanleitung

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]

SEPTEMBER 1999

ME500A

Async/Sync Industrial Line Driver

PRW TX RX RTS CD

Async

↔

Sync

Industrial Line Driver

Error Test

Remote

Normal

Local

511E

511

TRADEMARKS

TRADEMARKS USED IN THIS MANUAL

AT&T is a registered trademark of American Telephone and Telegraph Company.

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

the trademark owners.

ASYNC/SYNC INDUSTRIAL LINE DRIVER

FEDERAL COMMUNICATIONS COMMISSION

AND

CANADIAN DEPARTMENT OF COMMUNICATIONS

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.

NOM STATEMENT

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.

ASYNC/SYNC INDUSTRIAL LINE DRIVER

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.

CONTENTS

Contents

Chapter Page

1. Specifications ............................................................................................................6

2. Introduction ..............................................................................................................7

2.1 Description ....................................................................................................7

2.2 Features ..........................................................................................................7

3. Configuration ............................................................................................................8

3.1 Configuration Switches ................................................................................8

3.2 Configuration Switch Set S1 ........................................................................9

3.3 Configuration Switch Set S2 ......................................................................11

3.4 Configuration Switch Set S3 ......................................................................13

4. Installation ..............................................................................................................16

4.1 Two-Wire Installation ..................................................................................16

4.1.1 Two-Wire Cable Connection via RJ-45 ................................................17

4.2 Four-Wire Installation ................................................................................18

4.2.1 Four-Wire Cable Connection via RJ-45 ..............................................18

4.3 Four-Wire, Multipoint Installation ............................................................19

4.3.1 Multipoint Twisted-Pair Connection ..................................................20

4.4 RS-232 Connection......................................................................................20

5. Operation ................................................................................................................21

5.1 LED Status Monitors....................................................................................21

5.1.1 The Power, TX, and RX Indicators ....................................................21

5.1.2 The RTS and CD Indicators ................................................................21

5.1.3 The Test Indicator ................................................................................22

5.1.4 The Error Indicators ............................................................................22

5.2 Anti-Streaming Error Indicator ..................................................................22

5.3 Power-Up......................................................................................................22

5.4 V.54 Test Modes ..........................................................................................23

5.4.1 Local Analog Loopback (LAL)............................................................23

5.4.2 Remote Digital Loopback (RDL) ........................................................24

5.4.3 Using the V.52 BER Test Independently ............................................24

5.5 Power-Down ................................................................................................25

Appendix. Cable Recommendations ..........................................................................26

ASYNC/SYNC INDUSTRIAL LINE DRIVER

1. Specifications

Transmission Format — Synchronous or asynchronous, 2-wire/half duplex or

4-wire/full or half duplex

Interface — RS-232 (CCITT V.24) connection via DB25 female;

Twisted-pair connection via RJ-45

Transmission Line — 2- or 4-wire UTP, 19 to 26 AWG

Data Rates — Synchronous or asynchronous at 1.2, 1.8, 2.4, 3.6,

4.8, 7.2, 9.6, 14.4, 19.2, 28.8, 38.4, 57.6, and 64 kbps

(switch-selectable)

Clocking — Internal, external, or receive recover

Controls — Carrier Constantly ON or Controlled by RTS;

RTS/CTS delay set to no delay, 7 ms, or 53 ms

Applications — Point-to-point or multipoint

Indicators —Mono-color LEDs for TX, RX, RTS, and CD; Single

LEDs for Power, Test, and Error

RTS Anti-Stream Timer — 12.5 sec., 50 sec., or disabled (switch-selectable);

Tolerance: +50%, -0

Diagnostics — V.52-compliant bit-error-rate pattern (511/511E

pattern) generator and detector with error-injection

mode; V.54 compliant—Local Analog Loopback and

Remote Digital Loopback, activated by front-panel

switch or via RS-232 interface

Transformer Isolation — 2000 V RMS

Surge Protection — Immune to IEC-801-5 Level 2, 1kV

Temperature — 14 to 158°F (-10 to +70°C)

Power Supply — 157 to 242 VAC Universal Interface

Size — 1.6"H x 5.5"W x 7.5"D (4 x 14 x 19.1 cm)

CHAPTER 2: Introduction

2. Introduction

2.1 Description

The Async/Sync Industrial Line Driver operates 2-wire (half duplex) or 4-wire (full

or half duplex), in synchronous or asynchronous modes, over unconditioned

telephone lines. The Line Driver supports data rates up to 64 kbps. It operates in

synchronous mode between the local and remote modems; when connected to an

asynchronous RS-232 device, the Line Driver converts the asynchronous data to

synchronous data.

To enhance overall performance, the Line Driver features equalization, anti-

streaming timer, transformer isolation (to guard against data loss due to ground-

potential differences), and Silicon Avalanche Diode surge protection (to guard

against data-line transients).

The Async/Sync Industrial Line Driver features V.52-compliant bit-error-rate

pattern tests and two V.54 test modes (local analog loopback and remote digital

loopback). The operator at the local end can test both local and remote modems,

plus the line, in the digital-loopback mode. Both RDL and LAL modes can be

controlled by a manual switch or via the V.24/RS-232 interface.

2.2 Features

• Distances up to 12 miles (19.2 km).

• Point-to-point or multipoint.

• Internal, external, or received loopback clocking.

• 2000-VAC transformer isolation and high-speed surge protection.

• Internal power supply.

ASYNC/SYNC INDUSTRIAL LINE DRIVER

3. Configuration

3.1 Configuration Switches

The Async/Sync Industrial Line Driver uses 24 external mini DIP switches that

allow configuration to an extremely wide range of applications. These 24 DIP

switches are grouped into three eight-switch sets, and are externally accessible from

the underside of the unit (see Figure 3-1). Since all configuration DIP switches are

externally accessible, there is no need to open the case for configuration.

The configuration switches allow you to select data rates, clocking methods, V.52

and V.54 tests, word lengths, extended signaling rates, async or sync mode, 2- or 4-

wire operation, anti-stream control, and input impedance. The information on the

following pages describes all switch locations, positions, and functions.

Figure 3-1. Bottom view of Async/Sync Industrial Line Driver.

The Line Driver has three sets of eight switches, yielding 24 total DIP switches. The

three sets will be referred to as switch sets S1, S2, and S3. As Figure 3-2 shows, the

orientation of all DIP switches is the same with respect to ON and OFF positions.

S3 S2 S1

Off

Rear Front

CHAPTER 3: Configuration

Figure 3-2. Close-up of DIP switches showing ON and OFF positions.

3.2 Configuration Switch Set S1

The DIP switches on S1 set data rate, clock source, async/sync mode, and carrier-

control method. The default settings are shown in the table below.

Table 3-1. S1 switches

Position Function Factory Default

S1-1 Data Rate On

S1-2 Data Rate Off 9600 bps

S1-3 Data Rate Off

S1-4 Data Rate On

S1-5 Clock Source On

S1-6 Clock Source On Internal

S1-7 Async/Sync On Async

S1-8 Carrier Control Off Constantly On

All the possible configuration settings are described in detail beginning on the

next page.

↔

OFF

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