ETC EPSKS-4 Echo Keyswitch Lockout Station | BlackThe 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