Harris H274-41CA 32 Port Controller Adacom Information Systems Tower Unit

Harris H274-41CA 32 Port Controller Adacom Information Systems Tower Unit

The Harris H274-41CA is a 32-port controller produced by Harris Adacom Information Systems, based in Nashua, New Hampshire. This tower-form-factor unit houses a multi-port controller backplane with a substantial rear connector panel populated with BNC-style and serial interface ports across two vertical rows, supporting high-density multi-port data communication or control applications. The front panel features a floppy drive bay and front-panel controls, consistent with late-1980s to early-1990s minicomputer-adjacent controller hardware from Harris.

Specifications & What's Included

• Model: H274-41CA
• Manufacturer: Harris Adacom Information Systems, Nashua, NH
• Number of Ports: 32
• Form Factor: Tower (desktop tower / floor-standing chassis)
• Rear panel: multi-column array of BNC/serial connectors (32-port capacity)
• Front panel: floppy drive bay, Harris Adacom badge, indicator light
• Internal power supply with rear-mounted cooling fan
• Unit only — no cables or accessories included

Applications

Harris Adacom Information Systems produced multi-port controller and data communications hardware primarily for enterprise, government, and defense-related computing environments in the late 1980s through the 1990s. Harris Corporation (later Harris Adacom) was a well-known supplier of data communications equipment, terminal controllers, and multiplexers used in large-scale, mission-critical networks — including systems deployed by U.S. government agencies, utilities, and financial institutions. A 32-port controller of this type would typically serve as a concentrator or terminal server, aggregating serial connections from terminals, printers, or other peripherals into a central host or network. This unit dates from approximately the late 1980s to early 1990s, identifiable by the beige tower form factor, front floppy bay, and BNC-based rear connector layout common to that generation of proprietary multi-port hardware. Today these units are sought by legacy system integrators, government depot facilities, and collectors of vintage computing and telecom equipment.