Enclosed you will find an explanation of the assignment of the individual terminals in the device.
For the digits 1 / 2 / 3 or 3.0
C2 and C1 Potential-free contacts in the app marked with Lock2.
B2 and B1 are contacts for a cable-bound bell.
O2 and O1 are maximum for the door opener with power supply 12 Volt 1 Ampere (this function is only available as soon as a permanent power supply with the included plug-in power supply).
Sections 2.7 and 6.2 provide the possibility of power supply (accessories included).
Section 2.9 is the switch for the choice between external or internal antenna (not available as accessory).