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RS-232↔RS-422/485 Converter
CUSTOMER
SUPPORT
INFORMATION
(Data Only)
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
DECEMBER 2001
IC107A-R3
IC107AE-R3
IC107C-R3
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Related Manuals for Black Box IC107A-R3
Summary of Contents for Black Box IC107A-R3
- Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) SUPPORT FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
- Page 2 FCC/IC RFI STATEMENTS, DECLARATION OF CONFORMITY 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...
- Page 3 RS-232↔RS-422/485 CONVERTER (DATA ONLY) 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.
- Page 4 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. Any other trademarks mentioned in this manual are acknowledged to be the property of the...
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Page 5: Table Of Contents
3. Configuration ..................... 8 4. Installation ....................10 5. Operation ....................11 5.1 RS-232 Circuitry ................11 5.2 RS-422/485 Circuitry ................ 13 6. Troubleshooting ..................14 6.1 Calling Black Box ................14 6.2 Shipping and Packaging ..............14 Appendix: Pinouts ..................15... -
Page 6: Specifications
CHAPTER 1: Specifications 1. Specifications Compliance: CE; FCC Part 15 Subpart B Class A, IC Class/classe A Interfaces: EIA/TIA RS-232, DTE or DCE (user-selectable); EIA/TIA RS-422/485 Protocol: Asynchronous Data Rate: Transparent to data rates up to 64 kbps Transparent to data format Data Format: Flow Control: Transparent to software flow control;... - Page 7 RS-232↔RS-422/485 CONVERTER (DATA ONLY) Temperature Tolerance: Operating: 32 to 122˚F (0 to 50˚C) Storage: –4 to +158˚F (–20 to +70˚C) Humidity Tolerance: Up to 95% noncondensing MTBF: 200,000 hours Power: IC107A-R3 and IC107AE-R3: From utility-power (mains) outlet, through external power supply with detachable region-specific input cord: Input: IC107A-R3: 120 VAC, 60 Hz;...
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Page 8: Introduction
CHAPTER 2: Introduction 2. Introduction The RS-232↔RS-422/485 Converter (Data Only) allows your RS-232 and RS-422/485 equipment to communicate with each other. It operates in full-duplex mode over 4-wire lines. A four-wire terminal block on the RS-422/485 port makes installation easy. And this interface converter is flexible: it can work in either point-to-point or multipoint applications. -
Page 9: Configuration
RS-232↔RS-422/485 CONVERTER (DATA ONLY) 3. Configuration Here’s how to configure the RS-232↔RS-422/485 Converter (Data Only) for your application (refer to Figure 3-1 on the next page for the location of components on the circuit board): CAUTION! The Converter’s circuit board can be damaged by static electricity, so take every reasonable precaution against it. - Page 10 CHAPTER 3: Configuration 5. Normally, the Converter’s frame ground is isolated from its RS-232 signal ground. But if you want to connect frame ground to signal ground, you’ll need to solder a 100-ohm, 500-mW resistor to the terminals of location W7. (You could also use a wire jumper, but you’d need to make sure that any ground-loop currents caused by voltage-potential differences between the RS-232 and RS-422/485 sides are limited to acceptable levels—a strong...
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Page 11: Installation
RS-232↔RS-422/485 CONVERTER (DATA ONLY) 4. Installation To install your RS-232↔RS-422/485 Converter (Data Only) system, take these steps, making sure that the Converter and your devices are powered OFF: 1. Run an RS-232 cable from your RS-232 device to the Converter’s DB25 female RS-232 port. -
Page 12: Operation
CHAPTER 5: Operation 5. Operation 5.1 RS-232 Circuitry The RS-232 side of the RS-232↔RS-422/485 Converter (Data Only) is composed of the RS-232 drivers and receivers, the delay circuitry, and other circuitry necessary to operate the RS-232 control lines. Data traveling from the RS-232 interface to the RS-422/485 interface: When the RS-232 port is configured as DCE (see Figure 5-1 on the next page), data received on RS-232 Pin 2 (TD) will be transmitted out through TXA and TXB on the RS-422/ 485 port. - Page 13 RS-232↔RS-422/485 CONVERTER (DATA ONLY) RS-422/485 RS-232 side side Block diagram of Converter functions in DCE mode. Figure 5-1. RS-422/485 RS-232 side side Block diagram of Converter functions in DTE mode. Figure 5-2.
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Page 14: Rs-422/485 Circuitry
CHAPTER 5: Operation 5.2 RS-422/485 Circuitry The RS-422/485 side of the Converter is made up of the driver, receiver, and line- termination networks. As described in Chapter 3, you can use switch S2 to either connect the receiver’s termination network to the line (terminate the RS-422/485 port) or leave it unconnected (unterminated). -
Page 15: Troubleshooting
• Package it carefully. We recommend that you use the original container. • If you are returning the unit, include everything you received with it. Before you ship the unit back to Black Box for repair or return, contact us to get a Return Authorization (RA) number. -
Page 16: Appendix: Pinouts
APPENDIX: Pinouts Appendix: Pinouts Table A-1. Pinning of the RS-232 connector (DB25 female). Pin Number and Signal Function Pin1 — Frame Ground Connects the Converter’s frame ground to the frame ground of the RS-232 device. Pin 2 — TD When the Converter is set to DCE, data is received on Pin 2 and the TX LED lights up when Pin 2 is a “space”... - Page 17 RS-232↔RS-422/485 CONVERTER (DATA ONLY) Table A-2. Pinning of the RS-422/485 connector (4-position terminal block). Pin/Signal Function TXA and TXB Data received by the Converter from the RS-232 port is transmitted out of the unit over twisted-pair wires using these two outputs. The “TX” LED indicates the state of these two leads.
- Page 18 NOTES...
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- Page 20 © Copyright 2001. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...