Black Box ME806A Manual de usuario

CUSTOMER

SUPPORT

INFORMATION

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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 2001

ME806A

ME806-C

ME807A

ME807-C

SHM-B Parallel-T

SHM-B Parallel-T Card

SHM-B Parallel-R

SHM-B Parallel-R Card

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.

SHM-B PARALLEL-T, SHM-B PARALLEL -R

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.

TRADEMARKS USED IN THIS MANUAL

BLACK BOX and the logo are registered trademarks of Black Box

Corporation.

IBM, PC/AT, and PS/2 are registered trademarks, and PC/XT is a trademark, of

International Business Machines Corporation.

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

trademark owners.

SHM-B PARALLEL-T, SHM-B PARALLEL -R

Contents

Chapter Page

1. Specifications....................................................................................................5

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

3. Installation....................................................................................................... 9

3.1 Standalone and Rackmount Versions .....................................................9

3.2 Connectors ................................................................................................9

3.3 Installation Procedure ..............................................................................9

3.4 LED Indicators ........................................................................................13

3.5 Rack Mounting........................................................................................14

3.6 Configuration..........................................................................................14

4. Troubleshooting ............................................................................................16

CHAPTER 1: Specifications

1. Specifications

Models: ME806A, SHM-B Parallel-T (standalone transmitter)

ME806-C, SHM-B Parallel-T (rackmount transmitter)

ME807A, SHM-B Parallel-R (standalone receiver)

ME807-C, SHM-B Parallel-R (rackmount receiver)

Transmission Distance:

Bit Rate (bps)

2400 4800 9600 19.2 kbps

Distance (miles) 5 3 2 1.1

NOTE

These specifications are valid for unshielded twisted-pair telephone cable

having 24 or 26 AWG connectors. Shielded twisted-pair cable will reduce

the distance to 1⁄3of the table value.

Line Interface: Proprietary balanced 4-wire

Indicators: RD and TD Green and Red = Data transmission.

Green = Mark (idle state).

Red = Error condition. Check cabling.

BUSY Red = Printer is not online or not ready to

receive data.

Off = Printer is ready to receive data and

cabling is installed correctly.

Connectors: Transmitter DB25 male, 4-screw terminal block

Receiver DB25 female, 4-screw terminal block

Enclosure: High-impact ABS plastic

SHM-B PARALLEL-T, SHM-B PARALLEL -R

Operating

Temperature: 32 to 112°F (0 to 45°C)

Operating

Humidity: 95% relative humidity, noncondensing

Power: 120 VAC ±10%, 60 Hz, 1 watts, wallmount

transformer (230 VAC ±10%, 50/60-Hz option available)

Size: 1.5"H x 4.3"W x 4.6"D (3.8 x 10.9 x 11.7 cm)

Weight: 1.3 lb. (0.6 kg) with transformer

CHAPTER 2: Introduction

2. Introduction

The SHM-B Parallel performs three functions:

• The SHM-B Parallel-T accepts parallel data from the PC, converts it to serial

data, and sends the serial data over twisted-pair cable to the SHM-B Parallel-R.

The SHM-B Parallel-R receives the serial data, converts it back to parallel data,

and sends it to the the parallel printer.

• The SHM-B Parallel-T accepts parallel data from the PC, converts it to serial

data, and sends the serial data over twisted-pair cable to the SHM-B. The SHM-

B receives the serial data, converts it to RS-232 specifications, and sends the

data to the RS-232 serial printer.

• The SHM-B accepts the RS-232 data from the PC, converts it to serial data, and

sends it over the twisted-pair cable to the SHM-B Parallel-R. The SHM-B

Parallel-R receives the serial data, converts it to parallel data, and sends it to

the parallel printer.

4-wire cable

Serial input

from PC

Parallel output

to printer

SHM-B Parallel-T

(ME806A)

SHM-B Parallel-R

(ME807A)

4-wire cable

Parallel input Serial output

SHM-B Parallel-T

(ME806A)

SHM-B

(ME800A-R2)

4-wire cable

Serial input

from PC

Parallel output

to printer

SHM-B

(ME800A-R2)

SHM-B Parallel-R

(ME807A)

SHM-B PARALLEL-T, SHM-B PARALLEL -R

The SHM-B Parallel performs data transmission at bit rates from 1200 to 19,200

baud. It can be configured for either 7- or 8-bit word length and Even, Odd, or

No parity. The SHM-B Parallel features advanced optically-isolated integrated

circuitry, which eliminates damaging ground-loop currents and substantially

reduces signal noise for improved data integrity.

The SHM-B Parallel transmitter/receiver pair requires only two twisted-pair wires

to transmit and receive data. Optimum performance is obtained with 24 or 26

AWG twisted-pair telephone cable, but nearly any twisted-pair cable can be used

with little or no performance degradation.

NOTE

When operating serial to parallel or parallel to serial, the serial device has

to run hardware flow control. Software flow control (X-ON/X-OFF, etc.) is

not supported.

CHAPTER 3: Installation

3. Installation

3.1 Standalone and Rackmount Versions

The SHM-B Parallel is available in a standalone version and a rackmount version.

The standalone transmitter and receiver are packaged in small, lightweight ABS

plastic cases and equipped with wallmount transformers, for use on a desktop or

shelf. The printed circuit card can be removed from the case and the transformer

discarded, enabling the card to be installed in a rack if desired. The rackmount

version slips easily into an 8- or 16-card rack or enclosure.

3.2 Connectors

Each unit is equipped with a DB25 connector and a 4-wire terminal block.

The DB25 connector conforms to the IBM®PC parallel interface pinout, using

the Centronics®interface protocol. The 4-wire terminal block is the serial interface

to the twisted-pair line.

3.3 Installation Procedure

Before installing the receiver or transmitter, make certain the unit is not plugged

into the power source, and the equipment that you are going to attach to them is

turned off.

Each unit is ready to use as it comes from the factory. No changes are necessary

when used as a modem set to transmit data from a parallel device to another

parallel device at distances of up to 1.1 mile (1.8 kg). However, for installations in

which the loop length exceeds 1.1 mile, data corruption may occur due to

excessive line noise and/or capacitance. In this case, reduce the transmission baud

rate, using the configuration procedure described in Section 3.6.

Installation is accomplished in the following three steps:

1. Connect Cabling

For installation, connect a 4-wire twisted-pair cable between the transmitter and

the receiver.

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