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Black Box IC266A manual Appendix A. Troubleshooting, A.1 Before Calling Technical Support

Models: IC266A

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Appendix A. Troubleshooting

USB SINGLE-PORT HUB (RS-422/485)

Appendix A. Troubleshooting

A.1 Before Calling Technical Support

Serial Utility test software is supplied with the USB Single-Port Hub (RS-422/485) and will be used in the troubleshooting procedures. Using this software and following these simple steps, most common problems can be eliminated without calling Technical Support.

1.If your adapter isn’t working, first check to make sure that USB support is enabled in the system BIOS and it is functioning properly in the operating system. This can be done by using either the Windows 98, Me, or Windows 2000 Device Manager.

2.Make sure that the systems software has been installed on the machine so that the necessary files are in place to complete the installation.

3.When the USB Single-Port Hub (RS-422/485) is configured properly, the USB Enabled LED (EN) will be lit. This should allow you to use the WinSSD utility and the supplied loopback plug to check communications. The supplied loopback plug connects TX to RX. If you decide to test the

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Black Box IC266A manual Appendix A. Troubleshooting, A.1 Before Calling Technical Support

Contents

CUSTOMER SUPPORT INFORMATION USB Single-Port Hub RS-422/485SEPTEMBER IC266A Order toll-free in the U.S. Call 877-877-BBOX outside U.S. callRADIO FREQUENCY INTERFERENCE STATEMENTS FEDERAL COMMUNICATIONS COMMISSION and INDUSTRY CANADAEUROPEAN UNION DECLARATION OF CONFORMITY FCC AND IC RFI STATEMENTS/CE NOTICEUSB SINGLE-PORT HUB RS-422/485 NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENTINSTRUCCIONES DE SEGURIDAD NOM STATEMENT USB SINGLE-PORT HUB RS-422/485 TRADEMARKS USED IN THIS MANUALWindows is a registered trademark of Microsoft Corporation Chapter ContentsMean Time Between Failures MTBF Greater than 1. Specifications1.1 General CHAPTER 1 Specifications 1.2 Connector Pin Assignments DB25 MaleName Pin #2.2 What the Package Includes 2. Introduction2.1 Overview 2.3 Technical Description 2.4 Features3.2 System Installation 3. Installation3.1 Operating System Installation Figure 3-1. New Hardware Found screen CHAPTER 3 InstallationFigure 3-2. Add New Hardware Wizard screen New Hardware FoundFigure 3-3. Hardware installation finished screen System Properties Figure 3-4. System Properties, Device Manager tab4.1 Electrical Interface Selection 4. ConfigurationCHAPTER 4 Configuration 4.2 Switch ExamplesFigure 4-1. RS-530/422, 4-wire 485 master default Figure 4-2. RS-485, 2-wire with echoA.1 Before Calling Technical Support Appendix A. TroubleshootingAPPENDIX A Troubleshooting A.2 Calling Black BoxA.3 Shipping and Packaging RS-422 Appendix B. Electrical InterfacesRS-530 RS-485 APPENDIX B Electrical Interfaces Appendix C. Asynchronous Communications APPENDIX C Asynchronous Communications Figure C-1. Asynchronous communications bit diagramUSB SINGLE-PORT HUB RS-422/485 1000 Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax Copyright 2001. Black Box Corporation. All rights reserved