Item-No.: 232-4ULL 115200bps 

Item-No.: 232-4ULH 921.6Kbps

 The PCCOM PCI bus 4 port universal RS232 adapter is an 32 bits PCI bus board with Plug and Play (PnP) features, it provides four asynchronous serial communication ports, which link the computer and serial peripheral devices such as terminals, modems, serial printers, plotters, ... etc.

The PCCOM PCI bus 4 port universal RS232 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 universal RS232 adapter can be configured from COM3.

On board XR16C854 chip provides four 16850 functions which contains 128 bytes FIFO buffer for each 16850 ports. There are two kinds of board can be choose, one is quadruple speed (clock rate is 7.3728MHZ) board that its baud rate up to 460K, another is octal speed board (clock rate is 14.7456 MHZ) that its baud rate up to 1M.

The features of the PCCOM PCI bus 4 port universal RS232 adapter are:
 

• 32 bit PCI bus with Plug and Play (PnP) features.
• Four RS232 ports for asynchronous communications.
• Suitable for SCO UNIX, Linux, MS/DOS, WINDOWS NT/2000/XP, WINDOWS 95/98/ME, OS/2... etc.
• Pentium hardware compatibles.
• On board XR16C854 chip.
• Provides four 16850 ports that contains 128 bytes FIFO for each port.
• External or internal clock rate selectable.
• Quadruple speed (clock rate is 7.3728MHZ) board that its baud rate up to 460K. Octal speed board (clock rate is 14.7456 MHZ) that its baud rate up to 1M.
• Provides RS232 interface for 3.3V internal voltage, which has lower power consume.
• Up to 4 boards be installed in one computer system.
• Software compatible with PCCOM98/2000.
• Operating temperature 0 to 60 ºC.
• Storage temperature -20 to 70 degree °C.
• Humidity 5% to 95% in non-condensing.

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