Features

• Adds one RS-232, RS-422 or RS-485 serial port by connecting to a USB port

• One DB9 male connector & one 6-pin terminal block for optimal flexibility of serial connection

• Supplies power output of 5V, 150mA through pin-5 of terminal block

• No need to open chassis to set operation modes-one external DIP switch for easy RS-232, RS-422, RS-485 mode settings

• Installed as standard Windows COM port

• SECC metal chassis with DIN rail bracket

• Full RS-232 modem control signals and hardware/software flow control

• RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND

• RS-422 data signals: TxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-

• RS-485 4-wire data signals: TxD-, TxD+, RxD+, RxD-

• RS-485 2-wire data signals: Data-, Data+

• Automatic transmit and receive control for 2-wire RS-485 half-duplex mode

• Built-in termination and biasing

• High speed serial port with the baud rate up to 921.6K bps

• Non-standard baudrates supported

• LEDs of Power, TxD and RxD for easy port monitoring and diagnostics

• Serial port protected with surge protection of 10KV

• Powered by USB port, no external power adapter required

• Easy plug and play installation and RS-232/RS-422/RS-485 device connection

• COM port number assigned can be changed to any COM port number required

• Works with USB 1.1 & 2.0 host port

• Supports Windows 7, Vista, 2003, XP, 2000 and Linux

    RS-232 Signal Pin-outs of DB-9 Male

RS-422 Signal Wiring

    Point-to-Point 4 Wire Full Duplex

USB-COMi-M                                    RS-422 Device

    RS-422 with Handshaking

USB-COMi-M                                   RS-422 Device

    Point-to-Point 4-Wire Full Duplex

    Multidrop RS-485 2-Wire Half-duplex