Acqutek - PX-2285A
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Similar / Related Products PK-55160A - PX-2285A - MK-2285 - XC-2285A

PX-2285A In-depth Details and Specifications
Isolated RS-422/RS-485 Communication Card


RS-422/485 interface card for IBM PC
Configurable as RS-422 or RS-485 communication protocol
Fully optically isolated to the PC system
High speed opto isolator and fully isolated DC/DC converter provides high isolation between the communication line and the PC system
IBM PC RS-232 software compatible
Up to two PX-2285A can be installed in a single computer system to enable addressing 4 RS-422/RS-485 ports simultaneously


This adapter is designed for the 8088/86, 80286, 80386, 80486 and 80586 based computers. It contains one or two asynchronous communication ports using the standard RS-422/RS-485 interface.

Each asynchronous communication can add and remove a start bit, parity bit, and 1 to 2 stop bits. Baud-rates are programmable from 50 baud to 115,200 baud; supporting 5-, 6-, 7-, and 8-bit characters with 1, 1-1/2, or 2 stop bits.

The adapter COM port addresses and interrupts are DIP switch-selectable to MS-DOS COM1 - COM4. Configuring COM port address to other than COM1, COM2 for additional RS-232 communication channels is also supported. Up to four PX-2285A-2 adapters can be installed in a single computer system.

The board can be installed into any 8-bit or 16-bit PC/AT I/O expansion slot. Shipped with the adapter is this instruction manual, this manual provides detailed technical information and data sheets outlining specifications.

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