48 Parallel Bits of Digital I/O Type 82C55 PPI mode 0

Compatible with Opto-22 type Solid State Module Racks

Two 24 bit groups (two 8 bit ports, two 4 bit ports each group)

All bits are buffered, 64mA sink, 32m A source

I/O pulled up to 5V for Contact Monitoring, Pulldown resistors are an option (factory installation)

Fused (resetable) 5V available on pin 49 of each group

I/O connectors: Two Industry Standard 50 pin headers plus one ten-pin header for counter timer