Installation Guide of Hi-Speed
USB to Industrial Single RS-422/485 Adapter
Introduction of USB-COMi+2
The USB-COMi+2 USB to Industrial Single RS-422/485 Adapter is designed to make
serial port expansion quick and simple. Connecting to a USB port on your computer
or USB hub, the USB Serial Adapter instantly adds one industrial RS-422/485
multi-electrical interface serial communication port to your system. By taking
advantage of the USB bus, the USB Serial Adapter makes it easier than ever to add
one RS-422/485 port and serial devices to your system with easy plug and play and
hot plug features. Adapting the new technology, the serial port expansion now takes
the new bus with easy and convenient connectivity.
Plugging the USB-COMi+2 USB to Industrial Single Serial Adapter to the USB port,
the adapter is automatically detected and installed. There are no IRQ & COM port
conflicts, since the port doesn't require any additional IRQ, DMA, memory as
resources on the system. The RS-422/485 port functions as native Windows COM
port, and it is compatible with Windows serial communication applications. The
adapter is designed with external switches to set RS-232, RS-422 or RS-485 ports
and different operation modes conveniently. The upper case can be sliding open
easily for configuration and mode setting.
The USB Serial Adapter provides instant connectivity to RS-422/485 communication
devices for factory automation equipment, multi-drop data collection devices,
barcode readers, time clocks, scales, data entry terminals, ATMs and serial
communication in harsh environment. The USB to Serial Adapter is suitable for
remote access, retail and industrial application, data collection and other
applications requiring high speed RS-422/485 communication ports.
Specifications & Features
Adds one high speed RS-422 / 485 serial port via USB connection.
384 byte receive buffer.
128 byte transmit buffer for high speed data throughput.
Requires no IRQ, DMA, I/O port.
Data rates: 300 bps to 921.6K bps.
Serial Connector: one DB-9 male connector.
Auto transmit buffer control for 2-wire RS-485 half-duplex operation.
Termination resistors installed on-board.
RS-422 data signals: Tx-, Tx+, Rx+, Rx-, GND, RTS-, RTS+, CTS+, CTS-.
RS-485 data signals: Tx-, Tx+, Rx+, Rx-(4 wire) and data-, data+ (2 wire).
Monitor LEDs of TxD, RxD indicating port status.
No external power adapter required
Easy operation mode configuration and setting
Virtual COM port drivers available for Windows 7, Vista, 2003, XP, 2000.
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USB-COMi+2 USB-to-Industrial RS-422/485 Adapter Users Manual Hardware Installation
Inside the unit, there is one 3-pin DIP switch which is set to select the mode of
operation. You will need to push down the upper case, and slide it open by
following the direction of the red arrow in the illustration below. You can set the
switch settings to RS-422 or RS-485 mode as per the requirements of your
application.
Push down the upper case and slide it to open
You need to install driver first, prior to hardware installation. After the setting of DIP
switch and connecting USB cable to the adapter to start driver installation.
The Mode Block Configuration Settings are listed as follows:
RS-422 & RS-485 Mode Block Configuration
SW (External DIP Switch) for Mode Setting
Operation Mode S1 S2 S3
RS-422 4 wire with Handshaking ON ON ON
Full Duplex (4 wire) ON ON
RS-485 OFF
Half Duplex (2 wire) ON
- with Echo OFF OFF
Half Duplex (2 wire)
- without Echo OFF OFF OFF
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USB-COMi+2 USB-to-Industrial RS-422/485 Adapter Users Manual