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en | Operating instructions
PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
Operation
Normal operation
When in normal operation, the First responder panel LOC / ACU shows idle text "All Systems
Normal".
Fire / MNS (emergency) alarm operation
When a fire or MNS alarm occurs, and the First responder panel emits a continuous tone: the
tone sounds until the silence buzzer button is pressed. The First responder panel will indicate
in which zones the automated message is playing. The FACP will indicate the source and type
of alarm. Acknowledging and silencing the alarm must also be done through the FACP.
Trouble Operation
When a trouble condition occurs (such as wiring for a Loudspeaker line is cut or AC power
fails), the First responder panel sounder activates briefly approximately every 5 seconds. The
Trouble indicator lights on the display the trouble log shows the active troubles. Press Silence
buzzer to acknowledge the trouble or navigate in to the trouble log to acknowledge the
troubles.
Silence and Reset
To silence the alarm, use the FACP.
To reset the system; first reset the FACP and then reset the PRAESENSA system using the
reset PA button on the First responder panel.
Operating instructions: F.01U.394.774, V1.0