What is the switcher board in a video door-phones and what is its function?
If the monitors are connected with 5 wires, we proceed according to the diagram below.
What is the switcher board in a video door-phones and what is its function? 2
If the monitors are connected with 5 wires, we proceed according to the diagram below.
Installing an electropick audio intercom on the 1st floor
How to install an electropic audio iPhone on the first floor
