The security alarm device is designed and produced according to National Electrical Code (NEC), ANSI/TIA/EIA standards of residential security and commercial security. There are some important terms we should know and understand to help us properly using the security alarm system.
Bus: An electrical conductor or set of conductors that serve as a common connection for electrical circuits.
Data bus: Conductors or cable that is employed to transfer data and control signals.
Central station: An alarm monitoring facility which receives and acts upon signals transmitted to them by subscribers alarm systems.
Chime: An audible signal with a rhythmic tone used to annunciate a change in status of an alarm system, such as the opening of a door.
Communicator format: The established communications protocol, designated by control panel programming, that will be used for communications between the alarm system's digital communicator and the receiver at a monitoring facility.
Contact ID: A relatively fast DTMF communications format developed by Ademo used by alarm system digital communicators for information exchange with a remote monitoring facility.
EOL: Abbreviation for end of line.
DTMF: Abbreviation for dual tone multi-frequency.
Dual Tone multi-frequency: (DTMF) Two simultaneous audio frequencies used to control telephone switching equipment, such as dialing, and other control circuitry.
(1) A code, password or pass phrase used by an individual when that person is being forced to gain access to protected area or system.
(2) An special access code, which initiates a silent alarm, used when a person is being forced to disarm an alarm system.
End of line relay: A device used to supervise or monitor power supplied to powered sensors on an normally open loop or zone, such as 4-wire smoke detectors.
End of line resistor: A termination resistor placed a the end of a supervised zone or loop.
End of line supervision: A method of monitoring the integrity of a zone or loop that usually employs a termination resistor or a specified value.
Event log: A file containing a limited history of certain actions or mode changes that have occurred on an alarm system.
Fire loop: A protective circuit or zone which supports fire detection or fire alarm initiation devices, such as smoke detectors, pull stations, etc.
Force arm: A feature supported by some control panels that automatically bypasses any open or faulted zones which enables arming of the alarm system.
Explain alarm installation setting terms meaning. Technology of alarm detectors.
1 post • Page 1 of 1
Users browsing this forum: No registered users and 1 guest