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    2.010 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-3008-RM USB-to-Octal RS232 / RS422 / RS485 Serial 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 eight RS232, or RS422, or RS485 serial communication ports to your system. By taking advantage of the USB bus, the USB Serial Adapter makes it easier than ever to add serial ports and serial devices to your system with easy plug-and-play and hot plug features.

By plugging the USB Serial Adapter to the USB port, the adapter is automatically detected and installed. There are no IRQ & COM port conflicts, since the ports do not require any additional IRQ, DMA, memory as resources on the system. The adapter is self-powered, and has built-in switching power supply of 100 V / 240 V (input) inside the chassis.

The adapter is designed with eight external 4-pin dip switches to set RS232, RS422 or RS485 mode conveniently, without the need to open the metal chassis. Each port can be independently set to RS232, RS422, or RS485, depending on your requirement in application. The adapter is supplied with DIN rail brackets for an industrial environment. The adapter can be also mounted to a 19" rack, and the rack mount kits are included with the adapter. Termination and biasing option are available for data transmission lines.

The USB to 8 port RS232 / RS422 / RS485 Adapter provides instant connectivity to RS232,RS422, RS485 communication devices for POS, factory automation equipment, multi-drop data collection devices, bar code readers, time clocks, scales, data entry terminals, PC to PC long distance communications, ATMs and serial communicationin harsh environments. The ES-U-3008-RM USB to Industrial I/O provides industrial solution requiring single node or multi-drop communications over short and long distance.

Complete driver support for all current Windows, Linux, and  MAC-OS platforms. All drivers are downloadable for free. 


·    Adds eight RS232, or RS422, or RS485 serial ports by connecting to USB
·    Installed as standard Windows COM port
·    FIFO: 128 byte transmit buffer 384 byte receive buffer per port
·    Serial port speed up to 1 Mbps
·    Non-Standard Baud Rates supported ( e.g. 500 kbps )
·    Eight DB9 male connectors
·    Full hardware and software flow control
·    Automatic transmit buffer control for 2-wire RS485 half-duplex operation
·    ESD surge protection (15KV)
·    Monitor LEDs of Power, TxD, RxD indicating power & port status
·    Four external dip switches for easy RS232, RS422, RS485 mode settings:
               - no need to open chassis to set different modes
               - RS232 mode: OFF, ON, ON, ON
               - RS422 mode: 4-wire with handshaking ON, ON, ON, ON
               - RS485 mode: 4-wire full duplex ON, OFF, ON, ON
               - RS485 mode: 2-wire half duplex with echo ON, OFF, OFF, ON
               - RS485 mode: 2-wire half duplex without echo ON, OFF, OFF, OFF
·    COM Port Number assignment is configurable
·    Full RS232 modem control signals:
     RS232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
     RS422 data signal: Tx-, Tx+, Rx+, Rx-,GND, RTS-, RTS+, CTS+, CTS-
     RS485 data signal:
                   4-wire: Tx-, Tx+, Rx+, Rx-
                   2-wire: data-, data+
·    Serial Communication Parameters:
               - Parity: None, Even, Odd
               - Data bits: 7, 8
               - Flow control: RTS/CTS , X-ON/  X-OFF, None
·    Built-in 120 Ohm termination resistors for Tx/Rx/CTS termination
·    Built-in 750 Ohm biasing resistor for Tx/Rx biasing
·    USB cable of 0.9 meter included
·    Built-in switching power supply of 100 V~240 V
·    Easy plug & play installation and RS232 / RS422 / RS485 device connection
·    Industry Standard FTDI chip set & drivers for maximum compatibility
·    Works with USB 1.1 & 2.0 host port
·    SECC sheet metal chassis with DIN rail bracket and 19in rack mount kit supplied
·    Dimensions: 257 mm x 152 mm x 44 mm
     277 mm x 152 mm x 44 mm (with DIN rail bracket)