DIO-4264 64 채널 디지털 I/O 모듈 제품 사진, 64-channel Digital I/O module, PC-104, 48 digital I/O lines emulate two 82C55A PPIs, 48 digital I/O lines emulate two 82C55A PPIs, 16 extra nibble confogurable programmable digital I/O, Dual 50-pin connectors for OPTO22 compatible module racks