The Somfy RTS Repeater can be used in installations to extend the range of the standard Radio Technology Somfy signal. It will receive the signal from a Telis or similar device and retransmit the signal to a RTS compatible motor or receiver. Simply plug the receiver into any 120v AC outlet. It should be located at least halfway between the transmitting device (Telis) and receiving device (RTS Motor). The red LED will blink, indicating communication.