PCI 4-Port RS-232 isolated



Incl. DB-9 Cable


Optionally incl. DB-25


Box DB-9

PCI 4 Port RS-232 with 16550 isolated

Item-No.: 232-4PFI

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The PCCOM PCI bus 4 port with isolator adapter is an 32 bits PCI bus board with Plug and Play (PnP) features, it provides four asynchronous serial communication ports (RS232, RS422/RS485), which link the computer and serial peripheral devices such as terminals, modems, serial printers, plotters, ... etc. The on board isolator can isolate voltage up to 2500V r.m.s.

The PCCOM PCI bus 4 port adapter is particularly suited to facilitate the connection of terminals (VDUs) in multi-user operating systems. The PCCOM board may be installed in any Pentium or hardware compatible systems. The PnP features let hardware configuration for IRQ and I/O address is detected by BIOS automatically, you don’t need set switch and jumper.

Since most of the computer has its own COM1 and COM2, the PCCOM PCI bus 4 port adapter can be configured from COM4.

On board ST16C554 chip provides four 16550 functions which contains 16 bytes FIFO buffer for each 16550 ports. There are two kinds of mode can be choose, one is normal speed mode that its baud rate up to 115200, another is high speed mode that its baud rate up to 460K.


Bus: 32 Bit PCI Bus

The features of the PCCOM PCI bus 4 port adapter are:

  • 32 bit PCI bus with Plug and Play (PnP) features.
  • Four RS232 ports or RS422/RS485 ports for asynchronous communications.
  • Provides isolator function, which can isolate voltage up to 2500V r.m.s.
  • Pentium hardware compatibles.
  • Baud rate up to 115200 for normal speed mode and up to 460K for high speed mode.
  • Provides 16550 port that contains 16 bytes FIFO for each port.
  • Up to 4 boards be installed in one computer system.
  • Operating temperature 0 to 60C.
  • Professional serial COM technology technical support and design.



English manual with adjusting plan, terminal diagram, data sheets and sample programs. Windows-XP-7/8/10, Linux driver or infobr />

The package contains:
PCCOM Board, Software-CD, Manual


Information on ordering

  • All prices plus 19% VAT plus shipping
  • No sales to private consumers.
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