Características destacadas

  • 4 x RS232/422/485 ports
  • USB 2.0 High Speed interface
  • USB, serial ports and power supply ESD protected
  • Robust metal case
  • Ports configuration: via software or DIP-switch
  • Serial speed max. 1000(RS232) / 12000(RS485) kbps
  • 19-inch and Wall mounting options
  • Bus powered or ext. DCin 9-54V
  • Easy port expansion via USB-Out type A connector
  • Wide range operating temperature (-25°C - +75°C)


The modern USB-4COM Plus adapter connects 4 x RS232 or RS422/485 devices to your PC by one USB 2.0 High Speed port. The serial ports, USB and the power supply are ESD protected, compliant to IEC 61000-4-2 (8kV contact/16kV air discharges). USB-4COM Plus works in bus-powered mode, but a DCin connector for external wide range voltage is also provided.

All serial ports support RS232, RS422 and RS485 in Full-/Half-Duplex operation modes. The operation modes of the serial ports are either configured by a single DIP switch common for all ports, or for each port individually by software. The configuration also activates built-in RS485 termination if required, no jumpers needed. Standard Drivers are available for all major operating systems.
The USB 2.0 High-Speed enables serial data rates of up to 12Mbps in RS422/485 or 1000kbps in RS232 modes. The device also allows every non-standard bitrate up to 3.5Mbps.

A USB-out (type A) connector at the rear side allows easy expansion of serial ports by simple concatenation of further USB-COM Plus modules; we call it "USB-Through" feature. All USB-COM Plus devices can be used to expand the serial ports for NetCom Plus Device Servers.

609USB-4COM Plus (4x RS232/422/485, non-isolated, expandable)
Packing list

  • USB-4COM Plus device
  • Mounting brackets for 19-inch rack
  • Wallmount plates
  • CD-ROM with configuration software

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Especificaciones Tecnicas

USB Interface
USB-Input USB 2.0 High Speed, USB 1.1 compliant
Connector USB type B
Protection Compliant with IEC 61000-4-2 ESD 8kV contact / 16kV air discharge
USB-Out USB 2.0 High Speed, USB 1.1 compliant
Connector USB type A (at rear side)Used to connect more USB-(x)COM modules for port expansion.
Protection Compliant with IEC 61000-4-2 ESD 8kV contact / 16kV air discharge
Serial Interface
Ports 4 x RS232/422/485 configurable by softwareRS485 Termination configurable by softwarePolarization/BIAS not requiredConnector DSub-9 maleFor configuration details see below ...
Speed RS232: 180bps - 921.6/1000kbpsRS422: up to 12MbpsRS485: up to 12Mbps
Available Modes RS232 full duplexRS422 full duplexRS485 4-wire, full duplexRS485 2-wire, half duplex (bus-mode)For configuration details see below ...
Signals RS232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GNDRS422: Tx+/-, Rx+/-, GNDRS485 4-wire: Tx+/-, Rx+/-, GNDRS485 2-wire: Data+/-, GND
Protection Compliant with IEC 61000-4-2 ESD 8kV contact / 16kV air discharge
Configuration Either all ports operate in one common mode, configured by a single DIP switch, or each port is individually configured by a software: Windows: USB-COM Configuration UtilityAll OS: Terminal Emulation
Driver Windows 2000 to Windows 10 (x86 and x64)Windows Server 2000 to 2012 (x86 and x64)Linux (Kernel 2.6 and later built-in)Mac OS XInstallation by automatic download from the Internet
Power and Environment
Power Consumption Bus-powered: 5V 500mA via USBSelf-powered: DCin 9 - 54V, 3W
USB Supply Bus-powered possible on standard USB ports. The DCin supply is compulsory to support USB-Out. It is also necessary for USB ports with lesser power output.
DCin Supply DCin specs: Wide range 9 - 54V DC, 3WConnector: 3-pin industrial Terminal Block (Plus / Minus / Protective Earth)
DCin Protection Compliant with IEC 61000-4-2 ESD 8kV contact / 16kV air discharge
Dimension 196×147×44 mm³ (W×L×H)
Operating Temp −25°C - 75°C
Storage Temp −30°C – 85°C
Case SECC sheet metal (0.8mm)
Weight 0.9kg
Mounting 19-inch RackWall mount
LEDs LEDs for Power, Ready, serial Tx, Rx

Referencia Descripcion
609 USB-4COM Plus (4x RS232/422/485, non-isolated, expandable) (USB-4COM-M, USB-4COMi-M, USB-4COM-PRO)
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