• USB-COMi-SI-M USB-to-Optical isolated RS-422/485 Adapter

    Wiring diagram RS485. [USB-COMi-SI-M, pin 1]  (-) Negative [USB-COMi-SI-M, pin 2]  (+) Positive [USB-COMi-SI-M, pin 5]  Ground [USB-COMi-SI-M, Sw1] OFF [USB-COMi-SI-M, Sw2] OFF [USB-COMi-SI-M, Sw3] ON [USB-COMi-SI-M, Sw4] ON Driver Downloads Download USBCom-CDM