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  • Weight:
    1.150 Kgs



**At the end of the current stock cycle, the product enclosure will be supplied in Black. For further information please see our Quality Documentation or feel free to Contact Us**


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Document Type Revision File
Manual 1.2 USB to Serial Converters Manual



Download FTDI Virtual COM Port (VCP) Drivers for Windows, Mac OS and Linux


***QTY >= 10, CONTACT US***


The ES-U-2008-M is an 8-port USB to Serial Adapter. It quickly allows the addition of eight RS422 / RS485 serial communication ports to your system by connecting to a single USB port. Each of the 8 ports can be individually configured to RS422 or RS485 modes using DIP switches. The ES-U-2008-M is provided with an external power supply (100 V - 240 V input) and can be mounted on a DIN rail using the supplied brackets.  


The ES-U-2008-M is compatible with a wide range of operating systems including Windows 10, 8, 7, Vista, XP, 2000, ME, 98, Server 2012, 2008, Mac, Linux and WinCE (4.2 – 7.0). The latest drivers are available from the Downloads tab on this page.

·    Adds eight serial ports by connecting to a single USB port (USB 1.1 or 2.0)
·    DIP switches allow each port to be individually configured for RS485 full-duplex,
                  RS485 half-duplex or RS422 modes
·    Industry standard FTDI FT4232H chipset and drivers
·    Virtual Com Port drivers make all ports appear as standard Windows COM ports
·    COM port number is selectable for each port
·    Internal FIFO buffers - 1 Kbyte transmit buffer and 1 Kbyte receive buffer per port
·    Full hardware and software flow control
·    Automatic transmit buffer control for 2-wire RS485 half-duplex operation
·    Serial port baud rates up to 1Mbps with non-standard rates 
·    Eight DB9 male serial connectors
·    RS422 signals: Tx-, Tx+, Rx+, Rx-, GND, RTS-, RTS+, CTS+, CTS-
     RS485 signals:
                   Full-duplex: Tx-, Tx+, Rx+, Rx-, GND
                   Half-duplex: data-, data+, GND
·    Selectable Internal 120 Ohm termination resistors for Tx, Rx and CTS termination
·    Internal 750 Ohm biasing resistors for Tx and Rx biasing - selectable by jumper
·    ESD surge protection (15 KV)
·    Two LEDs per port indicate data transmit and receive
·    0.9 meter USB cable included
·    External power supply (100 V - 240 V input)
·    Metal chassis with wall mounting; DIN rail brackets available seperately
·    Dimensions: 171 mm x 99 mm x 46 mm 
·                             193 mm x 99 mm x 47 mm with DIN rail brackets