Black Box IC238A-F Bedienungsanleitung

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

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]

JANUARY 2009

IC238A-F

IC238A-M

RS-232 to RS-422/RS-530

Interface-Powered Converter

DB25 M to DB25 F or DB25 M

TRADEMARKS USED IN THIS MANUAL

Black Box and the Double Diamond logo are registered trademarks of

BB Technologies, Inc.

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

trademark owners.

RS-232 TO RS-422/RS-530 INTERFACE-POWERED CONVERTER

1. Specifications

Speed (Maximum): 200 kbps

Transmission Format: Synchronous, transparent to protocol

CE Approval: Yes

Cable Length: 6.6 ft. (2 m)

Connectors: IC238A-F: (1) RS-232 DB25 female, (1) RS-232 DB25 male;

IC238A-M: (2) RS-232 DB25 male

Operating Temperature: 32 to 122°F (0 to 50°C)

Humidity: Up to 90%, noncondensing

Size: 0.9"H x 2.1"W x 4.3"D (2.2 x 5.3 x 11 cm)

Weight: 7.7 oz. (220 g)

CHAPTER 2: Overview

2. Overview

2.1 Description

Use the RS-232 to RS-422/RS-530 Interface-Powered Converters to connect a DTE

and DCE with RS-232 and RS-530 interfaces. Two models are available with these

connectors: DB25 M to DB25 F (IC238A-F) or DB25 M to DB25 M (IC238A-M).

The connectors are linked via an integral 6.6-foot (2 meter) cable. Both models

operate in synchronous applications at data rates up to 200 kbps.

Choose from two configuration options: either link a RS-232 DTE to an RS-530

DCE or attach a RS-232 DCE to a RS-530 DTE. These options are switch-selectable.

Figure 2-1 illustrates a typical application.

Figure 2-1. Typical application.

IC238A-F and IC238A-M perform both the physical and the electrical conversion

between two interfaces. The circuitry provides short-range interface conversion (to

connect co-located devices).

IC238A-F and IC238A-M operate without AC power, deriving ultra-low power from

the DTE and DCE data control signals.

2.2 Features

• Convert RS-232 and RS-530 interfaces.

• Support data rates up to 200 kbps.

• Operate synchronously.

DTE DCE

IC238A-F

IC238A-M

RS-232 TO RS-422/RS-530 INTERFACE-POWERED CONVERTER

• Transparent to procotol.

• No AC power required.

• Include cable and connectors.

• Select DTE/DCE or DCE/DTE via a switch.

• Easy to install.

• Miniature and lightweight.

CHAPTER

CHAPTER 2: Overview

2.3 Schematic Diagrams

Schematic diagrams showing signal flow for the RS-232 DTE/RS-530 DCE and

RS-232 DCE/RS-530 DTE configurations appear in Figures 2-2 and 2-3.

Figure 2-2. Schematic diagram, RS-232 DTE/RS-530 DCE.

RS-530 (DTE)

Shield Protective GND

Signal GND Signal GND

RTS-a

RTS-b

CTS-a

CTS-b

DSR-a

DSR-b

DTR-a

DTR-b

LSD-a

LSD-b

TC-a

TC-b

RC-b

RC-a

EXT-TC-a

EXT-TC-b

TD-a

TD-b

RD-a

RD-b

RTS

CTS

DSR

DTR

DCD

EXT-TC

R=100 ohms

25 NC

RS-232 (DCE)

NAME

RS-530 (DTE)

RS-232 (DCE)

Shield

Protective GND

Signal GND

RTS-a

RTS-b

CTS-a

CTS-b

DSR-a

DSR-b

DTR-a

DTR-b

LSD-a

LSD-b

TC-a

TC-b

RC-b

RC-a

EXT-TC-a

EXT-TC-b

TD-a

TD-b

RD-a

RD-b

RTS

CTS

DSR

DTR

DCD

EXT-TC

R=100 ohms

Figure 2-3. Schematic diagram, RS-232 DCE/RS-530 DTE.

RS-232 TO RS-422/RS-530 INTERFACE-POWERED CONVERTER

CHAPTERCHAPTER 2: Overview

CHAPTER 3: Installation

3. Installation

CAUTION

This is a delicate instrument. Be careful not to break or shake any

components when setting jumpers or handling the unit.

IC238A-F and IC238A-M are factory-set to RS-232 DTE/RS-530 DCE (see

Figure 3-1).

Figure 3-1. RS-232 DTE/RS-530 DCE configuration (default).

To alter this configuration, follow these steps:

1. Starting at the line end, separate the two parts of the plastic cover by firmly

pressing the marked places on the sides.

2. Starting at the cable end, separate the two parts of the plastic cover by firmly

pressing the marked places on the sides.

3. Remove the 40-pin DTE/DCE socket by gently grasping both sides and slowly

moving it from side to side.

(DTE) PORT DCE (MODEM)

NAME

RS-232 TO RS-422/RS-530 INTERFACE-POWERED CONVERTER

4. Invert the socket so that the DCE faces the RS-232 connector and the DTE

faces the RS-530 device (see Figure 3-2). Make sure that the pins are aligned

with the socket.

Figure 3-2. RS-232 DCE/RS-530 DTE configuration (alternate).

5. To close the unit, press the two plastic covers together.

6. Plug the IC238A-F or IC238A-M directly into the DCE and the insert the cable

connector into the DTE or vice versa, according either to the default

configuration or to the alternate configuration you created in Step 4.

(DTE) PORT DCE (MODEM)

RS-232 SIDE

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