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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. To select the electrical interface, follow these steps: 1. Open Device Manager and locate “Ports (COM&LPT)” following the s
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Chapter 3: Installation and Configuration Figure 3-2. Interface settings. 4. S elect the appropriate electrical interface for your application and click on “OK.” NOTE: The electrical interface settings are maintained across multiple computers. Once the software driver has been installed on target computers, the interface converter can easily be moved from one computer to another without having to configure the electrical interface at each computer. 3.4.2 Interface Biasing 1K-ohm pull up/p
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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. Termination configuration is software selectable for both full- and half-duplex RS-485. B
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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. Echo configuration is software selectable for half-duplex RS-485. By default, ECHO is d
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Chapter 3: Installation and Configuration • EN[able] (Green) – Lights when the hub is properly powered through the USB port and communication between the device and host has been enabled. 3.4.6 DB9M Serial Connectors The IC292A includes four DB9 male serial connector with full modem control signals implemented in RS-232 mode. Pinouts for these connectors are included in Appendix B. 724-746-5500 | blackbox.com Page 17
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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. M ake sure that the software has been installed on the machine so that the necessary files are in place to complete the installation. To confirm installation, click on the Windows “Start” button and then select “All Programs.” You should see
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Appendix A: Troubleshooting Figure A-1. Port information tab. • C lick the “Settings” button to open the COM3 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. COM3 properties tab. 724-746-5500 | blackbox.com Page 19
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Appendix A: Troubleshooting • Click “Apply” and “OK.” • S elect 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. Start button in WinSSD COM3 screen. • If the COM port is working properly, the green light will glow and the Transmit Frames and Receive Frames will increase. The Tx and Rx Data Rates will show the calculated data rate (see Figure A-4). Page 20 72
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IC292A
USB to RS-232/422/485 Interface Converter, 4-Port
Connect up to four DB9 serial devices
®
BL A C K B OX
to a USB port.
Configurable via software; no jumpers or switches to set.
Customer 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 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence,
Information
PA 15055-1018 • Web site: www.blackbo
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FCC and IC RFI Statement/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 Subp
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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. 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
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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. 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
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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. 724-746-5500 | blackbox.com Page 5
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Table of Contents Table of Contents 1. Specifications ........................................................................................ 7 2. Overview ........................................................................................ 8 2.1 Introduction .................................................................................... 8 2.2 Features ........................................................................................ 8 2.3 What’s Included ...............
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Chapter 1: Specifications 1. Specifications Interface — (4) 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) USB Type B, (4) DB9 serial Temperature Tolerance — Operating: +32 to +158° F (0 to +70° C); Storage: -50 to +105° F (-58 to +221° F) Relative Humidity — Operating: 10 to 90%, noncondensing; Storage: 10 to 90%, noncondensing Power — Derives 500 mA power from your comput
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Chapter 2: Overview 2. Overview 2.1 Introduction The USB to Multi RS-232/422/485 Interface Converter (IC292A) provides an easy way to connect up to four DB9 serial devices to a single USB port. All configuration and electrical interface selections are handled through the driver, so you don’t have to open the enclosure to set jumpers or switches. 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 inst
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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. • USB to RS-232/422/485 Interface Converter, 4-Port • (1) 6-ft. (1.8-m) USB Type A to high-retention USB Type B cable • Software and this user’s manual on CD-ROM 2.4 Optional Items You May Need Depending upon your application, you might also need the following items. Contact Black
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Chapter 2: Overview 2.5 Hardware Description Figures 2-1 and 2-2 show the front and back panels of the IC292A. Table 2-1 describes its components. 4 1 2 3 Figure 2-1. Front panel: 4-port interface converter (IC292A). 5 Figure 2-2. Back panel: 4-port interface converter (IC292A). Table 2-1. IC292A components. Pin Signal Direction 1 Power LED Lights when the hub is properly powered through the USB port. 2 USB Type B port Links to USB Type B device. 3 Data LEDs Blinks when data is bein
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Chapter 3: Installation and Configuration 3. Installation and Configuration 3.1 Software Installation Windows 98/ME/2000/XP/Vista Operating Systems 1. Start Windows. 2. Insert the included software CD into your CD/DVD drive. 3. I f “Auto-Start” is enabled, the installation window will automatically appear. Otherwise, navigate to the root directory of your CD drive and double-click the “autorun.exe” application to launch the installation window. 4. Click the “Install” button. 5. T ype in y
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Chapter 3: Installation and Configuration 2. Windows will show a warning message that the hardware has not passed Windows logo testing. Click on “Continue Anyway.” NOTE: All applications and drivers have been fully tested to maintain the integrity of your operating system. 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 IC292A. 3.3 Verifying Installation To confirm that the drivers have been succ
