CASI-RUSCO 110101501 M 52SRP Access Control Interface Module

The CASI-RUSCO 110101501 M 52SRP Access Control Interface Module is a dual-reader interface processor for CASI-RUSCO access control systems, providing two reader channels (2RP/2SRP) and acting as the bridge between badge readers and door-control logic. It functions as the interface between an access control system, badge readers, and the related door-control signals, supporting supervised operation for both readers. In Mercury's retrofit lineage, this module is commonly referenced as the M5-2SRP, the screwdriver-free replacement for CASI's 2SRP reader-control device for migrating CASI installations to Mercury-based software ecosystems, typically used on two-door entry points in facilities that previously relied on CASI hardware.