PC Com Serial RS-232 / 422 / 485	8255 & TTLI I/O Cards	Pocket A to D & I/O	SAFLINE Multiplexer
EASY COM R 232	A480 BUFEIGHT Card	Y640 COM-PRO Card	P584 PCIPort Card
P588 PCIPort Card	P990 RAS-PRO Card	A640e Multi-Serial Port Card	RS232 Connector Box
PC Bus Extender	General I/O Interfaces