Abstract: A security system includes a perimeter sensor configured to cause an alarm signal to be issued after a first period of time upon sensing a security breach. An interior sensor is configured to cause an alarm signal to be issued after a second period of time upon sensing a security breach. The second period of time is shorter than the first period of time. A controller is communicatively coupled to each of the perimeter sensor and the interior sensor. The controller is adapted, in response to the perimeter sensor entering into a fault condition, to reconfigure the interior sensor to cause an alarm signal to be issued after a third period of time upon sensing a security breach. The third period of time is longer than the second period of time.

Abstract: A security system includes a perimeter sensor configured to cause an alarm signal to be issued after a first period of time upon sensing a security breach. An interior sensor is configured to cause an alarm signal to be issued after a second period of time upon sensing a security breach. The second period of time is shorter than the first period of time. A controller is communicatively coupled to each of the perimeter sensor and the interior sensor. The controller is adapted, in response to the perimeter sensor entering into a fault condition, to reconfigure the interior sensor to cause an alarm signal to be issued after a third period of time upon sensing a security breach. The third period of time is longer than the second period of time.

Abstract: A wrench for tamper switch installation for use with a tamper switch arrangement including an enclosure containing a tamper switch assembly having a mounting rail for assembling the tamper switch assembly to a security system enclosure. The wrench may be capable of holding two separate nuts and have cooperating mating structure to slidably mate with the mounting rail of the tamper switch arrangement. The nuts may be frictionally-fitted into the wrench, after which the wrench is slidably moved onto the mounting rail until the nuts line up with two throughbores in the mounting rail. Two screws or bolts are then inserted through a surface of the security system enclosure and traverse the throughbores in the mounting rail. The screws or bolts then threadably engage the two nuts disposed within the wrench and are threaded therethrough via rotation with a suitable instrument, e.g., a screwdriver, located outside of the security system enclosure.

Abstract: A method of installing a security system includes transmitting an air-borne request signal to a security device. An air-borne reply signal is transmitted from the device in response to the request signal. The reply signal includes identification information corresponding to the device.

Abstract: A method of operating a security system includes sensing a security breach, and providing an indication to a user that an alarm signal will be issued in response to the sensing of the security breach. The indication perceptibly changes with time.

Abstract: A method of operating a security system includes detecting a presence of a person in proximity to a user interface. The user interface is caused to generate audible messages dependent upon the detection of the presence of a person in proximity to the user interface.

Abstract: A method of operating a security system includes providing a plurality of sensors, and detecting at least one event with the sensors. A decision whether to initiate an alarm signal is dependent upon the detecting by each of the sensors, which of the sensors has detected the at least one event, and what nonzero number of times a first of the sensors has detected the at least one event.