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T24 System Manual Part 1: Installation
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
2.1.2 Without A T24-DoorMaster
When a T24-DoorMaster is not used, the electric door opener or Mediator, including
the door and door lock sensors, are connected directly to the keypad. In addition, an
external 12 V voltage is applied to the door mechanism/Mediator and bridged over
to the keypad.
The two cables for the electromagnetic anti-theft protection integrated into the T24 frame
(otherwise connected to and powered by the T24-DoorMaster) should be conducted inside
the building so that they can be connected to a 12 V supply in case modules are exchanged
later on.
Note
The anti-theft protection is connected to the DC power supply of the door opener via a
switch (switch on -> current is flowing -> protection deactivated). If the door opener works
with an AC power supply, the anti-theft protection requires its own DC voltage source.
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