Black Box RS422/485, RS-232/422/485 Copyright 2002. Black Box Corporation. All rights reserved

Page 29

© Copyright 2002. Black Box Corporation. All rights reserved.

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

Image 29

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 Overview IntroductionWhat’s Included Technical DescriptionSignal Name Connector Pin AssignmentsSignal Name Pin # Mode System Installation InstallationOperating System Installation Installation Original Configuration ConfigurationElectrical Interface Selection Jumpers E5, E6, E7, and E8Jumper Port RS-232 RS-422/485 Switch SW4 SettingsDescription RS-485 RS-422 SwitchSwitch SW3 Settings 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 BoxRS-422 Appendix B. Electrical InterfacesRS-232 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