Allen-Bradley 1771-PSC Power Supply Chassis Module

Allen-Bradley 1771-PSC Power Supply Chassis Module is a four-slot, back-panel-mounted power-supply chassis designed for PLC-5 I/O systems. It accepts 1771 I/O power modules and distributes backplane power to an attached 1771 I/O chassis, either directly or through a dedicated power-cabling arrangement, providing a centralized power backbone for remote racks in legacy installations. This assembly includes an RS-232-C interface module for serial communications, enabling configuration and diagnostics via a PC or terminal, which simplifies setup and troubleshooting in PLC-5 networks. Typical applications include supplying and organizing power for PLC-5 1771 backplanes in plant-floor control panels, enabling straightforward mounting on a back panel and reliable power distribution to connected I/O modules.