PCCOM - Solution Provider for RS232/422/485 Serial Communication
Multi Port Serial Card
Serial - TCP/IP Communication
RS232/422/485 Converter and Repeater
Data Acquisition and Instrument Control
Real - Time Data Collection form any Serial Device


PC PCOM ISA BUS 2PORT RS-422/RS-485 CARD


The PCCOM ISA bus 2 port RS422/RS485 adapter provides two asynchronous serial communication ports, which enables one computer to communicate with other computers via communication lines, or to link the computer and serial peripheral devices such as terminals, modems, serial printers, plotters, ... etc.

The PCCOM ISA bus 2 port RS422/RS485 adapter may be configured with up to two individually addressable RS422/485 ports and individually interruptible for any PC/AT, PC/386, PC/486, Pentium or compatible system. It can be addressed anywhere within the full range of PC I/O ports and each port address can be set individually as your requirement. The interrupt selection feature provides individual interrupt selection for each port, so that you can arrange the 2 ports in any combination of interrupt you need.

The PC COM ISA bus 2 port RS422/RS485 adapter provides signal drivers and receivers, which can be set by software or hardware. Since the adapter support differential communication lines, it provides longer and more reliable communication quality than does RS232. The communication speed is up to 460K baud and the maximum transmission distance is up to 4000 ft.

Under the RS422 mode, RTS and CTS are used to provide communication flow control protocol. Under he RS485 mode, only transmission and receive signal are used, both drivers and receivers can be enabled or disabled by jumper setting or software. This means the RS485 provides a multi-point communication protocol.

The PCCOM ISA bus 2 port RS422/RS485 board can be used to plug in 8250, 16450, 16550, or 16650 chips, and the PCCOM device driver can detect it automatically. There are two kinds of communication speed 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.

When set the PCCOM board to RS422 mode, it is particularly suited to facilitate the connection of terminals (VDUs) in multi-user operating systems.

The features of the PCCOM ISA bus RS422/485 adapter are:
Standard RS422/RS485 serial communication interface.




Suitable for XENIX/UNIX (SCO, AT&T, Interactive, UNIXWARE), MS/DOS, WINDOWS/NT, WINDOWS/95, WINDOWS/98, WINDOWS/2000, OS/2, MS/WINDOWS, PICK, CONCURRENT DOS, QNX, PROLOGUE, MUMPS, ... etc.
PC/486, Pentium hardware compatibles.
ISA bus Interrupt selectable. (IRQ2 – IRQ15)
I /O address selectable for each port.
Interrupt selectable for each port.
Maximum of 4000ft transmission speed.

RS485 driver mode and receiver mode selectable.
Auto-detect 16450 or 16550 or 16650 chips on board.


Baud rate up to 115200 for normal speed mode and up to 460K for high speed mode.

PACKING INFORMATION
PCCOM Card
DB25 or DB9 Cable
Installation CD
User Manual

Catalog Manual
Application Converter
Drivice Driver Test Tool & Sample Code
Data Acquisition Diagram
Serial Communication Technology UARTs & Line Driver
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