Black Box RS422/485, RS-232/422/485 manual July IC1020A IC1021A IC1022A

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JULY 2002

IC1020A

IC1021A

IC1022A

Dual-Port USB Hub—RS-232/422/485

Quad-Port USB Hub—RS-422/485

Quad-Port USB Hub—RS-232/422/485


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
INFORMATION	Mailing address:			Black Box Corporation		, 1000 Park Drive, Lawrence, PA 15055-1018
	Web site:		www.blackbox.com		• E-mail:	info@blackbox.com

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