MPC-6000 / MPC-7000 / RND-2 PROGRAMMING MANUAL
41
APPENDIX A: GLOSSARY
Abort Condition. Condition in which the abort function is pressed during 1st-Alarm (IRI type
only) or during Pre-Discharge condition.
Abort Function. Defines an event that is manually initiated during the proper releasing event
sequence that will indefinitely prevent the releasing circuit from activating.
AC Power Fail. Refers to a condition in which AC power loss is detected by the system.
Agent Release Delay. Same as Pre-Discharge Delay.
Alarm Signal. A signal indicating an emergency requiring immediate action, such as an alarm
for fire from a manual station, a waterflow alarm, an automatic smoke detector, etc.
Alarm Silence Inhibit. An option that prevents a human operator from silencing the notification
appliances for a preset period of time.
Alarm System. A combination of compatible initiating devices, control units and notification
appliances designed and installed to produce an alarm signal in the event of a fire or other
condition, as designed.
Alarm Verification. A preset option that causes the control unit to verify alarms originated by
smoke detectors before indicating an alarm.
Annunciator. A remotely located, electrically powered display, separate from the control unit,
containing LCDs, LEDs or lamps to indicate the states of the fire alarm system.
Audible Signal. A sound made by one or more audible notification appliances, such as bells or
horns, in response to the operation of an initiating device.
Authority Having Jurisdiction (AHJ). The organization, office, or individual responsible for
approving equipment, installation or procedures.
Auxiliary Relays. Control relays that energize only during alarm conditions that are used to
either apply power to or remove power from other equipment during an alarm condition.
City Tie. Provides connections for shunt, local energy, central station or remote station.
Class A Circuit. An initiating device or notification appliance circuit within which all components
remain fully functional, even though a single open or ground exists in the circuit.
Class B Circuit. An initiating device or notification appliance circuit within which some or all
components may be disabled when a single open or ground exists in the circuit.
DACT. Digital Alarm Communicator Transmitter (see NFPA 72).
Detector - FireSmart™. An intelligent fire detector that blends photoelectric, thermal and neural
network technologies for superior protection without false alarms.
Detector - Smoke, Photoelectric Type. A detector employing the photoelectric principle of
reflection or obstruction of light by smoke.
Detector - Thermal Type. An addressable thermal sensor that is programmable as either a
fixed temperature (135° F) or as a rate of rise detector.
To Next Page
Loading...
