1. Is the remote control of a switch by electrical impulses. The ripple receivers, when receiving control inputs, can turn off the load until the signal is disabled or another frequency signal is received.
2. Is the remote control of a switch by electrical impulses. The ripple receivers, when receiving control inputs, can turn off the load until the signal is disabled or another frequency signal is received.
https://en.wikipedia.org/wiki/Load_management (1.); https://www.energie-lexikon.info/rundsteuertechnik.html (2.)