The GSM modem transmits the message by means of a telephone call in case of an alarm. These are transmitted to the specified phone numbers after a delay period of 5 seconds. The alarm or fault is triggered via a potential-free input contact. This can either be done via a normally open contact or via a normally closed contact. Please ensure that the SIM-LOCK (PIN entry) is deactivated on the card. A buffer battery is also optionally available, which relays a fault after approx. 15 minutes in the event of a power failure.
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