IBM 6323028484XL SERIAL/PARALLEL 431 BIT ISA ADAPTER BOARD 6320947

IBM 6323028484XL（PCB PN:6320947）is a vintage ISA bus serial + parallel multi I/O adapter card, old legacy ISA slot design for early industrial PC systems. The ISA serial/parallel combo adapter board integrates serial communication port and parallel printer port, known as model 431 bit I/O card. This ISA serial/parallel combo adapter board uses DIP switch manual IRQ & IO address setup, no plug-and-play function. The ISA serial/parallel combo adapter board is long discontinued, widely used in old industrial control rack, legacy marine automation and CNC equipment.

This board delivers serial & parallel discrete data transmission logic control. The serial & parallel discrete data transmission logic control provides RS232 serial channel for instrument sensor data communication. The serial & parallel discrete data transmission logic control offers parallel port for printer, mimic panel and discrete signal output. The serial & parallel discrete data transmission logic control exchanges process data between old CPU host and field peripheral devices. The serial & parallel discrete data transmission logic control needs manual DIP switch configuration of interrupt and IO address during commissioning.

This IBM spare is an essential legacy industrial ISA I/O spare for old PC-based control cabinet overhaul. The legacy industrial ISA I/O spare can replace faulty 6323028484XL /6320947 adapter boards directly. The legacy industrial ISA I/O spare is shock-resistant and conformal coated versions available for humid industrial and marine environments.

IBM 6323028484XL ISA serial & parallel adapter is classic old-style ISA bus I/O card. It supplies RS232 serial and parallel port for legacy industrial PC, requires manual DIP switch setup for IRQ and IO address, used on obsolete engine room monitoring and factory automation systems.