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DOOR ENTRY SYSTEMS
FROM THE TELEPHONE -
Note: To connect the door entry system, look up in the technical
datasheet that comes with the audio unit.
Operation
When the monitor or the telephone auxiliary button is pressed, the circuit of the control signal
(15Vdc) is closed through terminal 25 (+), allowing power to be supplied to the second door
for a pre-established period of time (see timing in adjusting instructions).
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