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Controlled from the USB bus.
Relays - 8
Isolated Inputs - 8
Input Voltage - 4.5v DC to 27v DC
Power - 12V DC adaptor, supplied separately.
Control interface - USB
Relay current - Up to 16Amp @24vdc or 250vac
Connections - Screw Terminals for N/O N/C and Common contacts.
Full USB-OPTO-RLY816 Documentation
Examples:
Linux
Linux GCC - A command line tool that will set the relays and display input states
Linux with Mono and Xbuild (C#) - Simple example of switching the relays and displaying inputs
Mac
Xcode - Simple example of switching the relays and displaying inputs
Microsoft Windows
Visual C# Express - Simple example of switching the relays and displaying inputs
Visual Basic Express - Simple example of switching the relays and displaying inputs