Fingerprint access control how to control the electric door
To the fingerprint access control of an electric door signal.
There are two ways, one is connected to the infrared sensor head, then access control N0 and GND, or connected to the control panel,
Access control host can output the relay signal This is the conventional weak output, 1 your first to determine your power signal interface is the voltage signal or switch signal, the general and sell electric door contact, according to my experience is generally switch Signal, is a short connection with a short if you can open the switch is the amount. 2 if the voltage signal is generally 5V or 12V with a relay transfer
