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USB to Multi RS-232/422/485 Interface Converter
Connect up to eight DB9 serial devices
to a USB port.
Configurable via software; no jumpers or switches to set.
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
Customer
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax
Support
724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence,
Information
PA 15055-1018 • Web site: www.blackbox.com • E-mail: info@blackbox.com
BLACK BOX
IC293A
®
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Summary of Contents for Black Box IC293A
- Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) Customer FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax Support 724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, Information PA 15055-1018 • Web site: www.blackbox.com • E-mail: info@blackbox.com...
- Page 2 FCC and IC RFI Statements/NOM Statement 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 inter ference 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...
- Page 3 NOM Statement 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.
- Page 4 NOM Statement 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.
- Page 5 Trademarks Used in this Manual Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks of BB Technologies, Inc. Windows and Windows Vista are registered trademarks of Microsoft Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
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Page 6: Table Of Contents
3.4.7 DB9M Serial Connectors ..........17 3.4.8 Locking USB Cables ............17 Appendix A. Troubleshooting ................18 Troubleshooting Tips ..............18 Contacting Black Box ..............21 Shipping and Packaging ...............22 Appendix B. Electrical Interfaces ..............23 Page 6 724-746-5500 | blackbox.com... -
Page 7: Specifications
Chapter 1: Specifications 1. Specifications Interface — (8) RS-232/422/485 serial ports, (1) USB Maximum Data Rate — Up to 921.6 kbps UARTs — High-speed USB/UARTs with 128-byte TX FIFOs and 384-byte FIFOs Connectors — (1) high-retention USB Type B, (8) DB9 serial Temperature Tolerance —... -
Page 8: Overview
The serial port is software configurable for RS-232, RS-422, or RS-485 (full- and half-duplex). The IC293A software drivers and utilities make installation and operation easy for Windows 98SE, ME, 2000, XP, and Vista operating systems. Once the software is ®... -
Page 9: What's Included
Chapter 2: Overview 2.3 What’s Included The interface converter ships with the following items. If any of these items is missing or damaged, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com. IC293A: • USB to Multi RS-232/422/485 Interface Converter •... -
Page 10: Hardware Description
Chapter 2: Overview 2.5 Hardware Description Figures 2-1 and 2-2 show the front and back panels of the IC293A. Table 2-1 describes its components. Figure 2-1. Front panel: Multi Port interface converter (IC293A). Figure 2-2. Back panel: Multi Port interface converter (IC293A). -
Page 11: Installation And Configuration
“autorun.exe” application to launch the installation window. 4. Click the “Install” button. 5. Type in your part number (IC293A) or select your adapter from the listing. 6. Click the “Install Drivers” button. 7. The setup file will automatically detect the operating environment and install the proper components. -
Page 12: Verifying Installation
Clicking on “Continue Anyway” will not harm your system in any way. 3. Click on “Finish.” Repeat this process for the remaining ports on the IC293A. 3.3 Verifying Installation To confirm that the drivers have been successfully installed, you can look in Device Manager under “Ports (COM &... -
Page 13: Hardware Configuration
Chapter 3: Installation and Configuration Figure 3-1. Device Manager screen. 3.4 Hardware Configuration 3.4.1 Electrical Interface Mode Selection The interface converter offers RS-232, RS-422, and RS-485 (full- and half-duplex) modes. The electrical interface is a software selectable feature that can be accessed and changed using the included driver via Device Manager. -
Page 14: Interface Biasing
Chapter 3: Installation and Configuration NOTE: The included driver adds the “Interface Settings” tab. If this tab is missing, the software is not correctly installed. Figure 3-2. Interface settings. 4. Select the appropriate electrical interface for your application and click on “OK.”... -
Page 15: Line Termination
Chapter 3: Installation and Configuration Table 3-1. Pull-up and pull-down resistor settings. Mode PU Setting PD Setting RS-232 Always off Always off RS-422 Always off Always off RS-485 Always on Always on 3.4.3 Line Termination A 120-ohm resistor is across each RS-422/485 input. If multiple devices are configured in an RS-485 network, only the devices on each end should have the termination in place. -
Page 16: Echo
Chapter 3: Installation and Configuration 3.4.4 Echo The RS-485 “Echo” is the result of connecting the receiver inputs to the transmitter outputs. Each time a character is transmitted, it is also received. This can be beneficial if the software can handle echoing (that is, using received characters to throttle the transmitter), but it can also confuse the system if the software cannot support echoing. -
Page 17: Status Leds
3.4.7 DB9M Serial Connectors The IC293A includes eight DB9 male serial connectors with full modem control signals implemented in RS-232 mode. Pinouts for these connectors are included in Appendix B. -
Page 18: Appendix A. Troubleshooting
Appendix A: Troubleshooting Appendix A. Troubleshooting A.1 Troubleshooting Tips The adapter should provide years of trouble-free service. However, if it appears to be functioning incorrectly, the following tips can eliminate most common problems. 1. Make sure that the SeaCOM software has been installed on the machine so that the necessary files are in place to complete the installation. - Page 19 Appendix A: Troubleshooting Figure A-1. Port Information tab. • Click the “Settings” button to open the COM Properties menu. Change your parameters to 9600 bits per second, 8 data bits, no parity, 1 stop bit, and no flow control, as pictured in Figure A-2. Figure A-2.
- Page 20 Appendix A: Troubleshooting • Click “Apply” and “OK.” • Select the “BERT” tab and with the loopback connected to the port you want to test, click on the “Start” button. If testing RS-485, be sure that ECHO is enabled (see Figure A-3). Figure A-3.
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Page 21: Contacting Black Box
Figure A-4. Calculated data rate. • You can continue testing this port with different configurations or proceed with testing other ports, if necessary. If these steps do not solve your problem, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com. A.2 Contacting Black Box If you determine that your USB to Multi RS-232/422/485 Interface Converter is malfunctioning, do not attempt to alter or repair the unit. -
Page 22: Shipping And Packaging
• Package it carefully. We recommend that you use the original container. • If you are returning the unit, make sure you include everything you received with it. Before you ship for return or repair, contact Black Box to get a Return Authorization (RA) number. -
Page 23: Appendix B. Electrical Interfaces
Appendix B: Electrical Interfaces Appendix B. Electrical Interfaces The IC293A connects to a single USB port and provides eight RS-232/422/485 software configurable serial ports. The IC293A uses high-speed USB/UARTs with 128-byte TX FIFOs and 384-byte RX FIFOs. The chips feature programmable baud rates and data rates to 921.6 kbps. - Page 24 Appendix B: Electrical Interfaces RS-422 and RS-485 four-wire (DB9 male) Figure B-2. DB9 male connector. Table B-2. RS-422 and RS-485 (DB9 male connector pinout). Pin Number Signal NOTE: Pins 6–9 are not connected. RS-485 two-wire (DB9 male) Figure B-3. DB9 male connector. Table B-2.
- Page 25 NOTES Page 25 724-746-5500 | blackbox.com...
- Page 26 NOTES Page 26 724-746-5500 | blackbox.com...
- Page 27 NOTES Page 27 724-746-5500 | blackbox.com...
- Page 28 724-746-5500 or blackbox.com. About Black Box Black Box Network Services is your source for an extensive range of networking and infrastructure products. You’ll find everything from cabinets and racks and power and surge protection products to media converters and Ethernet switches all supported by free, live 24/7 Tech support available in 30 seconds or less.
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