Switching on the alarm system (burglar alarm system = EMA) - VdS shunt lock

1. The person authorised to activate operates his transponder near an activation unit twice in quick succession (within two seconds). This sends a signal to all existing deactivation units.
2. If latch contacts are connected to the deactivation units, the deactivation units first check whether the doors are correctly locked. If this is the case, the digital locks are deactivated, making it impossible to enter the security area.
3. Only after successful deactivation of all locks does the activation unit receive a positive acknowledgement and the activation master switches the alarm system on externally via a potential-free contact (principle of inevitability). When the alarm system has been activated, the LEDs of the activation units light up for 2.5 seconds. At the same time the test LEDs of the deactivation units go out.
3. The EMA itself indicates the successful activation acoustically (e.g. on the activation unit).