Magitronic A-B232 8-Bit ISA Serial Parallel Card 2 Serial 1 Parallel Port 615

Magitronic A-B232 8-Bit ISA Serial Parallel Card 2 Serial 1 Parallel Port 615

The Magitronic A-B232 is an 8-bit ISA multi-port I/O expansion card that adds two RS-232 serial ports and one parallel port to an ISA-bus desktop PC. The card installs in any 8-bit ISA slot and uses a ribbon cable to connect to an external bracket that mounts the DB25 parallel port at the rear of the chassis. Multiple onboard jumpers allow configuration of COM port addresses and interrupt assignments to suit various system setups.

Specifications & What's Included

• Model: Magitronic A-B232
• Board label / revision: 615
• Bus interface: 8-bit ISA
• Serial ports: 2 × RS-232 (DB9, 9-pin) — mounted directly on card bracket
• Parallel ports: 1 × DB25 (25-pin) — via included external bracket with ribbon cable
• Jumper configurable: Yes — multiple jumper blocks for IRQ and address selection
• Form factor: Half-length ISA card with full-height metal bracket
• Includes: Card, original Magitronic retail box, external DB25 parallel port bracket with ribbon cable

Applications

8-bit ISA serial/parallel I/O cards like the A-B232 were a standard expansion accessory for IBM PC, PC/XT, and PC/AT-class computers throughout the late 1980s and into the early 1990s, when motherboards often provided limited or no built-in serial and parallel ports. They were used to connect peripherals such as serial mice, modems, external terminals, plotters, and dot-matrix or daisy-wheel printers. The ISA (Industry Standard Architecture) bus was the dominant expansion interface of that era, and 8-bit cards like this one were compatible with the widest range of XT and AT machines. Today these cards remain in demand for maintaining vintage IBM PC-compatible systems, industrial PC equipment with ISA slots, and legacy automation or data acquisition setups that still rely on RS-232 serial or Centronics-compatible parallel communication.