px 308 lp pcie 2xrs422 485 1mbaud opto isolated

PCI Express Card providing two opto isolated RS422/485 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmitand 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC. Optical isolation provides greater protection from electrical current surges to both the card itself and the PC. It improves noise immunity by isolating the PC from the card’s transmit ground. Drivers for Windows 32 bit and 64 bit Operating Systems including Windows 2000, XP, Server 2003, Vista, Server 2008, Windows 7, 8 and Windows 10.

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Operating Systems

Tech Spec

Serial Port
ConnectorDB9 Connector - 9 Pin Male
UARTOxford 950
UART Compatibility16750/16550/16450 backwards compatibile
Tx FIFO Size128
Rx FIFO Size128
Operating DistanceRS422/485 Standard (4000 ft : 1200 metres)
CableNo Cable; Integrated Connector
Serial Port Settings
Max Baud Rate921,600
Data Bits5,6,7 or 8
ParityOdd, Even, None, Mark or Space
Stop Bits1, 1.5 or 2
Tx/Rx ModesFull Duplex, Half Duplex Autogating
PCB Layers4
Form FactorLow Profile
Includes Printer PortNo
Galvanic IsolationYes
Power Consumption320mA @ 3.3V, 70mA @ 12V
Product Weightawaiting
Product Dimensionsawaiting
Packaged Weight0.216 kg, 7.62 ounces
Packaged Dimensions200x135x80 mm, 7.9x5.3x3.1 inches
GTIN (barcode)837324004144
Operating System Compatibility
Operating Systems
  • Microsoft Windows 10
  • Microsoft Windows 8 32 bit & 64 bit Editions
  • Microsoft Windows 7 32 bit & 64 bit Editions
  • Windows Server 2008 32 bit & 64 bit Editions
  • Windows Vista 32 bit & 64 bit Editions
  • Windows XP 32 bit & 64 bit Editions
  • Microsoft Windows 2000
PCI Express x1, x4, x8 & x16 lane slotsPCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCI-E or PCIe, is a computer expansion card standard introduced by Intel in 2004. All Brainboxes PX cards are PCI Express Base Specification 1.1 Compliant.


Microsoft Signed Drivers

Microsoft Hardware