4 Port RS-232/422/485 PCI Card

4 Port 3-in-1 Industrial Communication PCI Board

Plug this board into one PCI slot and it provides four serial ports. It supports two ports for RS-232 or RS-422/485, selectable by jumper, and the other two ports for RS-422/485, with each RS-422/485 port able to control up to 32 devices in a multidrop environment.

By using ADDC (Automatic Data Direction Control) intelligence, applications can easily manage the half-duplex RS-485 port’s data transmitting and receiving without the need for extra code. In addition, on-chip hardware flow control and built-in termination resistors guarantee data integrity. Includes DB37 to four DB9 male connector cable and CD with drivers and Pcomm Lite serial development software.