English to Greek Tech/Engineering Electronics / Elect Eng

How to activate the system.
You can activate the system by first switching on the receiver unit by selecting short or long range with the slide switch.
The LED on the front will shortly light up in red.
Then, place the transmitter unit on top of the receiver in a way that it fits in the depression on the receiver (fig 3)
The system is activated once you have heard a beeping sound.
The LED on the receiver will now start blinking green


το σκέφτηκα ως εξής:
Έπειτα, τοποθετείστε την μονάδα του πομπού πάνω από την μονάδα του δέκτη κατά τέτοιο τρόπο ώστε να εφαρμόζει στην εγκοπή του δέκτη (σχήμα 3).