Advantech USB-4761 user manual Please make sure that you have closed the application

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Step4: Unplug your USB device from the USB port.

Note:	Please make sure that you have closed the application
	programs before unplugging the USB device, otherwise
	some unexpected system errors or damages may hap-
	pen.

USB-4761 User Manual

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Contents USB-4761 Channel Relay, 8-channel IDI USB ModuleCopyright Acknowledgements Product Warranty 2 years Technical Support and Assistance Contents Appendix Specifications Introduction Features Wide Input Range Reset Protection for Industrial ApplicationsRobust Protection Plug & Play FunctionInstallation Guide ApplicationsInstallation Flow Chart Device Drivers Software OverviewProgramming Choices for DA&C Module Device Driver Programming Programming ToolsTroubleshooting Device Drivers Error Programming with Device Drivers Function LibraryInstallation Unpacking After taking out the module, you should firstDriver Installation CD-ROMHardware Installation Driver InstallationDevice Name on the Device Manager Device Setup & Configuration Setting Up the DeviceConfiguring the Device Device Manager Dialog BoxDevice Testing Device Setting Dialog BoxTesting Digital Input Function Testing Digital Output FunctionHardware Uninstallation Digital Output Tab in Device Test DialogUnplug or Eject Hardware Dialog Please make sure that you have closed the application Signal Connections Pin Assignment I/O ConnectorsOverview I/O Connector Pin Assignment 2 I/O Connector Signal Description LED Indicator Status DescriptionSingle-ended Channel Connections Isolated Digital Input ConnectionsRelay Connections Field Wiring Considerations Specifications Isolated Digital Input Relay OutputGeneral Page Function Block Appendix B Function Block