PCI Express, Serial Communication Board with 2 RS-232 ports, supports operating temperatures from 0 °C ~ +60 °C


PCI Express, Serial Communication Board with 2 RS-232 ports, supports operating temperatures from 0 °C ~ +60 °C

  Price:  $139.00  


VEX 112 PIN AssignmentThe VEX-112 series communication card provides 2 RS-232 serial ports. Each port has support for speed up to 115200 bps and can work for full-duplex communication.

Users may specify a COM port number manually by setting COM-Selector (DIP switch), or let the driver choose an available number automatically. The driver provides a maximum of 128 KB software buffer for each COM port under Windows. It's practical for large file transmission.

The data lines of each serial port on i version VXC cards come with photocouplers design. The on-board photo couplers use a short optical transmission path to transfer a signal between elements of a circuit, and keep the data lines electrically isolated. It can help in cutting down on ground loops, common mode voltages and block voltage spikes, provide electrical isolation, and offer significant protection from serious over-voltage conditions in one circuit affecting the other.

In harsh industrial environments, the on-board ESD protection component (for i version) diverts the potentially damaging charge away from sensitive circuit to protect the computer and equipment from a sudden and momentary electric current.

The serial communication card is designed for use with intelligent devices like bar code reader, serial printers, intelligent sensors, instrumentation equipment, computers and almost any device with an RS-232 port.

  • Provides 2 RS-232 ports
  • Built-in COM-Selector
  • 128 KB Software Buffer (max.) for Each COM Port Under Windows
  • +/-4 kV ESD Protection for i versions
  • 2500 VDC Isolation for i versions
  • Supports PCI Express, Plug and Play for VEX-112(i)


  • Windows NT4/2000 drivers for VXC series.
  • Drivers for 32-bit Windows XP/2003/2008/Vista/7/8
  • Drivers for 64-bit Windows XP/2003/2008/Vista/7/8


  • Industrial Machinery
  • Building Automation
  • Restaurant Appliances
  • Laboratory Equipment & Research
  • Industrial Communication



Communication Port
UART 16C950 compatible
Baud Rate 50 ~ 115200 bps
Data bit 5, 6, 7, 8
Stop bit 1, 1.5, 2
Parity None, Even, Odd, Mark, Space
FIFO Internal 128 bytes
Isolated -
Bus Type PCI Express x1, Plug and Play
COM-Selector Yes (8-bit DIP switch)
Connector 2 x DB9 (Male)
Power Consumption 120 mA @ 5 V
Operating Temperature 0 °C ~ +60 °C
Storage Temperature -20 °C ~ +70 °C
Humidity 0 ~ 90% RH, non-condensing
Dimensions (L x W x D) 110 mm x 94 mm x 22 mm

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