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L1-07A.04 – Long Range Radio

L1-07A.04 – Long Range Radio Messages are sent by radio transmitters or transceivers One-way radio goes from the alarm site to the central Two-way offers full communication May go thru other alarm sites or intermediate...

L1-07A.03 -Cellular

L1-07A.03 -Cellular Uses stationary cellular telephone equipment (Separate unit or a card added to a control) Like cellular telephones, it reports without wires to a nearby cellular tower to connect Enters the central station via a phone line or internet connection...

L1-07A.02 – Digital Communicators

L1-07A.02 – Digital Communicators Digital Communicators are used to transmit a signal from the alarm site over regular landline telephone wires (POTS = plain old telephone service) to an alarm monitoring station The communicator seizes the customer’s phone...