Black Box IC109A, IC109A-R2, IC108C, IC108A, IC109C User Manual

...

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: info@blackbox.com

APRIL 2002 IC108A IC109A IC108C IC109A-R2 IC108AE IC109C

IC109AE

RS-232↔485/422 Converter Plus

RS-232↔485/422 Opto-Isolator/Converter

TX RX CD RTS PWR

DCE DTE

232↔485/422

OPTO-ISOLATOR/CONVERTER

NORMAL

DLB

RX TX RTS CD

TX RX CD RTS PWR

RX TX RTS CD DCE DTE

NORMAL

DLB

232↔485/422

CONVERTER PLUS

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 B 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.

RS-232↔485/422 CONVERTERS

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.

RS-232↔485/422 CONVERTERS

TRADEMARKS USED IN THIS MANUAL

Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

CONTENTS

Contents

Chapter Page

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

2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

3.1 Jumper and Switch Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.1 DTE/DCE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.2 Frame Ground/Signal Ground. . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.3 Half/Full-Duplex Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.4 CTS Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.5 RS-485 Driver Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.6 Half-Duplex Turnaround Delay . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.7 RS-485 Interface Terminated or Unterminated . . . . . . . . . . . 12

3.1.8 Normal/Loopback Operation . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1.9 RS-485 Interface Line Biased (Fail-Safe) . . . . . . . . . . . . . . . . . 13

3.2 DCE Configuration/DTE Configuration . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Appendix A: Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Quick Reference: User-Selectable Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

RS-232↔485/422 CONVERTERS

1. Specifications

Optical Isolation: IC109A, IC109AE, IC109C only

Interface: (1) asynchronous RS-232 port (DTE/DCE selectable); (1) asynchronous

RS-485 port with improved surge protection and switch-selectable line termination or line bias

Connectors: (1) DB25 female RS-232 port; (1) four-wire terminal block (TB1) RS-485 port

Pins Supported: RS-232 port: TD, RD, RTS, CTS, CD, DTR, DSR, SG, and FG; RS-485 port: TXA, TXB, RXA, RXB

Data Rate: Up to 115 kbps, transparent to data

Indicators: (5) LEDs: TX, RX, RTS, CD, and PWR

Temperature Tolerance: Operating: 32 to 122°F (0 to 50°C); Storage: -4 to +158°F

(-20 to +70°C)

Humidity: 0 to 95% relative humidity, noncondensing

MTBF: Approximately 180,000 hours (ground benign environment)

Power: PS154 (for use with IC108A, IC109A): Input: 120 V, 60 Hz, 20W; Output: AC

17VCT, 0.7A; PS154E (for use with IC108AE, IC109AE): Input: 230 V, 50 Hz, 20W; Output: AC 17VCT, 750 mA

Size: Standalone Unit: 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm); Rackmount Card: 7.4"L x 4.7"W (18.8 x 11.9 cm); 0.6 inches thick (1.6 cm)

Weight: Standalone Unit: 1 lb. (0.5 kg); Power supply only: PS154: 0.4 lb. (0.2 kg), PS154E: 1.1 lb. (0.5 kg)

Operation: Point to Point or Multipoint; Half or Full Duplex; Transparent to data; Selectable RTS-to-CTS delay with option to inhibit CTS if CD is present (DCE); DTE or DCE configurable RS-232 port; Normal or loopback operation

Timeout Delay: 0.15, 0.7, 2, 7, or 70 msec (for the RS-485 driver enabled by data feature)

CHAPTER 1: Specifications

Typical Speed Versus Distance (4-wire point-to-point 26-AWG twisted pair):

Speed Distance

1200 bps 4 miles (6.4 km)

2400 bps 3 miles (4.8 km)

4800 bps 2.3 miles (3.7 km)

9600 bps 1.7 miles (2.7 km)

19,200 bps 1.2 miles (1.9 km)

38,400 bps 0.9 mile (1.4 km)

64,000 bps 0.75 mile (1.2 km)

115 kbps 0.4 mile (0.6 km)

NOTE

Speed and distances will depend on actual operating conditions.

RS-232↔485/422 CONVERTERS

2. Introduction

The RS-232↔485/422 Converter Plus is an RS-232-to-RS-485 interface converter that operates in the same manner as a line driver. It allows an RS-232 device to transmit data over much longer distances than is normally possible (up to 4 miles—6.4 km—at 1200 bps). The advantage of the RS-232↔485/422 Converter Plus over other line drivers is that it can also operate in multipoint applications. Depending on the operating environment, as many as 64 devices can be linked together using twisted-pair cable.

The opto-isolating models (IC109A, IC109AE, IC109C) protect one segment of your extended network from problems that arise on the other. Inside the RS-232↔485/422 Opto-Isolator/Converter, optical isolation circuitry converts electrical signals to light and back again, to keep signal noise and ground loops from crossing between segments of your RS-485 installation. That means the electrical noise from your factory floor won’t affect your office communications, and the difference in ground potential between buildings won’t damage your sensitive equipment.

Additional features include a manual loopback test to check the system wiring for both the RS-232 and RS-485 interfaces, and transient protection on the RS-485 interface to help prevent damage due to voltage transients on the data line.

Although designed specifically to connect to other RS-232↔485/422 Converters, the RS-485 port may be connected to any device with an RS-422 or RS-485 interface, thus acting as an interface converter. For example, this would be useful in an industrial application where RS-485 or RS-422 devices would be connected to an RS-232↔485/422 Converter.

The RS-232↔485/422 Converter is available in standalone and rackmount versions. The rackmount cards (part numbers IC108C and IC109C) are designed to be installed in the multi-function rack (part number RM005).

If you ordered the IC109A-R2, you should have received a cable and an adapter with your RS-232↔485/422 Converter Plus. The cable is designed to plug into an IBM PC AT (or clone) DB9 com port. The adapter is designed to be used with the supplied cable to connect to an IBM PC computer’s DB25 com port.

CHAPTER 3: Installation

3. Installation

This section describes the jumper and switch functions for configuring the RS-232↔485/422 Converter. See Figure 1 on the next page for the component locations.

To install your RS-232↔485/422 Converter:

1. Set each of the ten jumpers/switches for your application.

2. Connect the RS-232↔485/422 Converter devices together as shown in Figures 5 through 8 (pages 23–25).

3. Apply power. (PS154 or PS154E, depending on which RS-232↔485/422 Converter you have. See Chapter 1 for more information.)

3.1 Jumper and Switch Configuration

NOTE

As you read this section, refer to Tables 1 and 2. Table 1 (page 15) lists DCE jumper settings, and Table 2 (page 20) lists DTE jumper settings.

3.1.1 DTE/DCE C

ONFIGURATION

A DIP shunt is used to select DTE or DCE configuration. For the RS-232↔485/422 Converter to appear as a DTE device, put the DIP shunt jumper in socket XW1B. For the RS-232↔485/422 Converter to appear as a DCE device, put the DIP shunt jumper in socket XW1A.

3.1.2 F

RAMEGROUND/SIGNALGROUND

Jumper W7 ties signal ground to frame ground. The position is left open at the factory. If signal ground is to be connected to frame ground, solder a 100-ohm, 1/2-watt resistor in location W7. A wire jumper may also be used. Care must be taken to ensure that ground circulating currents are limited to acceptable levels.

3.1.3 H

ALF/FULL-DUPLEXOPERATION

Jumper W8 selects half-duplex or full-duplex operation. Set W8 to the HALF position (B-C position) for half-duplex operation. Set W8 to the FULL position (A-B position) for full-duplex operation.

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