Características destacadas

  • RS422 & RS485 serial interface
  • Speed up to 921.6 Kbps, full duplex
  • RS485 automatic line direction control
  • Support for 4-wire RS422/RS485 and 2-wire RS485
  • 2 LEDs for independent TxD & RxD signaling
  • Host bus powered
  • Hot “Plug & Play”, USB 1.1 full speed (2.0 compatible)
  • Standard COM ports full compatible
  • 15 KV ESD protection and HF filtering
  • Robust & compatible aluminium case (dongle), CE standards


The range of serial to USB solution offers performance, simplicity of installation, security, robustness and high reliability at affordable prices.


USB400 is enclosed in a compact aluminum case (dongle format), it features an industrial 2-4 wire RS422 / RS485 serial interface with 5-point screw-in terminal block.


USB400 installation is quite simple as the product is instantly plug & play, it doesn't require any IRQ, DMA or I/O port resources.


Installed serial ports are considered by Windows 9x, Windows 2000, Windows XP & Linux operating systems as computer's standard COM ports.


Ordering information
    USB400   One RS422 / RS485, USB bus powered, shipped with 2 m A/B type USB cable    

Especificaciones Tecnicas

Interfaces One RS422 / RS485 asynchronous serial ports for USB bus
RS signals RS422 mode: A, A’, B, B’ & GND - RS485 mode: AA’, BB’ & GND
Format Asynchronous 5, 6, 7 or 8 bits per character 1, 11/2, 2 stop bits Even, odd, mark, space or no parity
Data rate From 50 to 921.6 Kbps
FIFOS 32 bytes
Hand-shake Hardware hand-shake (RTS/CTS) and/or software hand-shake (XON/XOFF) with automatic line direction control in the RS485 mode.
RS connectors 5-point screw-in terminal block
Protection 15KV ESD protection with HF signal filtering, CE conformity
Signaling 2 LEDs to monitor TxD & RxD signals activity, one LED for power supply
Power supply Powered from USB bus
Operating systems Windows 9x, Windows 2000, Windows XP, Linux 2.4 & 2.6
Consumption 0,4 W maximum
Configuring "Plug & Play" equipment, quick & easy Windows installation, RS422 / RS485 mode, polarization and line termination are switches configurable.
EMC NF EN 55022 residential emission, NF EN 61000-6-2 industrial immunity
Environment Operating temperature from -5°C to +65°C, storage -40°C to +80°C, 0 to 95% relative humidity without condensation
Installation "Dongle" format, shipped with a 2 meter A/B type USB cable
Dimensions 73 mm (L) x 25 mm (l) x 21 mm (H)
Weight 36 g
Accessories Screwdriver to screw-in the RS422/485 cable in the terminal block

Referencia Descripcion
USB400 USB400 Serial RS422 / RS485 to USB bus adapter
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