Radio control relay RS-N4, four-button flush-mounted transmitter

Electronic radio relays are used for remote control of gates, roller shutters, lighting, arming alarm systems, etc. The remote control system consists of a transmitter and a receiver (transmitter). There is a possibility of cooperation of many transmitters with one receiver and a single transmitter with many receivers.
The RS-N ... radio transmitter works with dedicated F&F devices: the RS-407M monostable receiver and the RS-407B bistable receiver.
Action
The impulse caused by pressing the button connected to the transmitter causes sending the coded signal to the receiver. The transmitter has a protection against breaking the transmission after releasing the button. Thanks to this, even the shortest activation of the function causes the transmission of the full data frame.