If the cable is violated or there is an attempt of tampering, the pivot unit rises immediately an local alarm at the pivot – a siren and a buzzer light – and calls a Remote Alarm Receiver (RAR). The Remote Alarm Receiver, installed further away from the pivot (i.e. at the gate house or at the security base), switches on another siren to alert security staff.
Afterwards the pivot unit sends text messages and calls multiple phone numbers according to a list stored in the system.