Description
Multi-user audio door phone(4A ~ 8A)
1. Terminal 1,2,3,4 of the outdoor station (main unit) is connected to terminals 1,2,3,4 of the indoor station separately. Positive pole (+) is connected to the positive pole (+) of the power supply, and negative pole (-) is connected to the negative pole (-) of the power supply.
Terminal 1 is connected to the OPEN of the power supply.
2. LOCK of the power supply is connected to the electricity-controlled lock. The red line is to the positive pole (+) and the black to the negative pole (-).
3. Terminal 5 of the indoor station is linked to the corresponding number of outdoor stations.
For instance, terminal 5 of indoor station 1 is connected to the L1 of the outdoor station.
4. The talking volume of the indoor unit and outdoor unit can be adjusted by the knob at the back of the outdoor unit. Size of outdoor state.
