Black Box RS422/485, RS-232/422/485 manual DUAL- and QUAD-PORT USB Hubs, EMC Directive Statement

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DUAL- AND QUAD-PORT USB HUBS

EMC Directive Statement

Products bearing the CE Label fulfill the requirements of the EMC directive (89/336/EEC) and of the low-voltage directive (73/23/EEC) issued by the European Commission.

To obey these directives, the following European standards must be met:

EN55022 Class B—Limits and methods of measurement of radio interference characteristics of information technology equipment.

EN55024—Information technology equipment immunity characteristics limits and methods of measurements.

EN60950 (IEC950)—Safety of information technology equipment, including electrical business equipment.

Always use the cabling provided with this product if possible. If no cable is provided or if an alternate cable is required, use high-quality shielded cabling to maintain compliance with EMC directives.

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Contents July IC1020A IC1021A IC1022A Federal Communications Commission EMC Directive Statement DUAL- and QUAD-PORT USB HubsNOM Statement DUAL- and QUAD-PORT USB Hubs Trademarks Contents Specifications Technical Description IntroductionOverview What’s IncludedConnector Pin Assignments Signal Name Pin # ModeSignal Name Installation Operating System InstallationSystem Installation Installation Jumpers E5, E6, E7, and E8 ConfigurationOriginal Configuration Electrical Interface SelectionJumper Port RS-232 RS-422/485 Switch SW4 SettingsSwitch Switch SW3 SettingsDescription RS-485 RS-422 Switch SW2 and SW4 Settings Switch Port Description RS-485Switch SW1 and SW3 Settings QUAD-PORTUSB HUB-RS-232/422/485 IC1022A Port Description RS-485Jumpers E1, E2, E3, E4, E5, E6, E7, and E8 Switch Port Description RS-485 RS-422 SettingSetting Troubleshooting Tips Appendix A. TroubleshootingShipping and Packaging Calling Black BoxAppendix B. Electrical Interfaces RS-232RS-422 RS-485 Appendix C Asynchronous Communication Figure C-1. Bit diagram for asynchronous communicationAppendix C Asynchronous Communication Copyright 2002. Black Box Corporation. All rights reserved