Burr-Brown AA155-2-4 MP802B Printed Circuit Board

The Burr-Brown MP802B Board, part number AA155-2-4, is a REV C printed circuit board built around Burr-Brown's MP802B digital output family. This compact PCB functions as a digital output interface in compatible equipment, typically used in industrial controllers and PLC systems to drive discrete outputs such as relays or actuators. Market listings identify it as the AA155-2-4 REV C MP802B board from Burr-Brown, highlighting its Rev C revision and MP802B designation, which distinguishes it from earlier revisions in the same family. The board is described in second-hand listings as a used Burr-Brown MP802B assembly, reflecting its status as a surplus or repair part that may be suitable for refurbishment or integration into vintage instrumentation that relies on Burr-Brown interface standards. In practice, this MP802B board provides the dedicated circuitry required to interface a host controller with external devices, aligning with Burr-Brown's approach to modular digital output interfaces. While exact electrical specifications, connector layouts, and physical dimensions are defined by the MP802B family and the AA155-2-4 configuration, buyers typically source these boards to repair, restore, or replicate systems built around Burr-Brown's MP802B I/O protocol, ensuring compatibility with equipment designed to the MP802B interface. The Rev C designation helps ensure the correct replacement part for a given installation, supporting maintenance workflows for legacy test benches, automation infrastructure, and instrumentation that depend on Burr-Brown hardware.