The ETC EPSKS-4 Echo keyswitch lockout station is designed for EchoConnect-enabled control systems where restricted user access is important. It allows a designated space to be assigned by rotary switch, and when lockout is activated, the system ignores button actuations within that space. This makes it a practical choice for facilities that need to prevent unauthorized wall-station use while keeping the overall control network straightforward to deploy.

Installation is suited to commercial and institutional projects including houses of worship, schools, hospitality venues, healthcare facilities, offices, conference rooms, meeting rooms, and retail spaces. The station connects over EchoConnect using topology-free two-wire wiring, giving integrators flexibility when planning bus, loop, homerun, or mixed wiring layouts. Plug-and-play operation supports fast deployment, while additional configuration options help adapt the station to broader system requirements.

The enclosed electronics assembly and included faceplate support a clean finished appearance, and flush mounting in an industry-standard backbox helps simplify specification for new construction and retrofit work. With removable connectors, visible lockout indication, and compatibility across Echo control devices, the EPSKS-4 fits well in projects that need dependable access control within an ETC Echo environment.