Perimeter (Alarm Level Inputs)

Perimeter detection refers to the detection of access to the outer limits of a detection area by means of physical barriers such as door contacts, glass break detectors, door contacts on uncontrolled doors, etc.

Usually, inputs that are defined as “perimeter” (glass breaks, garage doors, fire doors, door with door contacts not controlled, etc.) are grouped and defined as “alarm level #1 inputs”. When one of these inputs are activated, it will activate the “alarm relay #1” relay which can be connected to an “alarm panel” that will send a warning to the central indicating a parametric intrusion. A perimeter detection is considered more important since it originates from the perimeter of the controlled area. For supervised doors (reader, T.REX, door contact), you can use the field Supervised door when armed to group the doors that will also activate the “alarm relay #1” when a “door forced open” or “door open too long” event is generated for these doors. For example, main entrance doors or back entrance doors can be included in this field.