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•
A normal to off-normal status change indication shall be latched and only manually
resettable at the control unit or display and control centre.
5.2.3
Building/Property Safety Input
Building/Property Safety Inputs may include but are not limited to: fan status, dampers,
motors, elevators, telephones, etc.
Building/Property Safety Inputs may be programmed to LED Indicators. The input status will
activate the LED as configured.
•
Building input activations display as the third highest priority on the shared display in the
common queue. They are lower than supervisory and higher than troubles.
•
May also be programmed to relay, signal, and strobe outputs.
•
When an un-bypassed building circuit activates, the status display and programmed
outputs are activated.
•
Restoring the building status returns all outputs correlated to the input, that are not
correlated to another active input, to normal.
5.2.4
Priority Alarm
Increases the polling frequency and optimizes the transmission of data from the device.
5.2.5
Trouble-Only Input
An active condition on an un-bypassed trouble-only input initiates the common trouble
sequence as a non-latching trouble.
•
Activates Trouble zone status indicators associated with the input.
•
Trouble input activations display as the lowest priority on the shared display in the
common queue.
•
May also be programmed to relay, signal, and strobe outputs.
Caution:
Correlating signal and strobe devices to building/property safety inputs
requires the approval of the AHJ and are not to be used for fire events.
Note:
Devices used for building inputs are to be isolated from fire operation. It is
required that these devices are placed on a separate SLC loop if Class B wiring is
used, otherwise wire the devices according to Class X to accomplish isolation.
Note:
Trouble conditions initiated as a result of a trouble-only input activating is
separate from the circuit or device supervision trouble.
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Summary of Contents for MR-400
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