JB-QB-5Ei
Users’ Manual
JB-QB-5Ei
Fire Alarm Control Panel
26
2 Principle of operation
Fire alarm control panel operation principle
:
when fire parameter exceeds one threshold value,
fire alarm trigger device will be activated and send out alarm signal to fire alarm control panel.
After fire alarm control panel confirms fire alarm signal, it will send out audible and visible
alarm signal. It will display fire alarm position simultaneously and record fire alarm time.
Based on pre-set program, it will send out control command to associated operation devices.
Fire alarm control panel operation principle diagram is show in Fig.1.
main control unit
LCD
power switch
unit
Printer
Bell
Sound & Light
siren
Keyboard
LED
control output
contact
Bus device
Fire Alarm Repeater
main control unit
LCD
power switch
unit
Printer
Bell
Sound & Light
siren
Keyboard
LED
control output
contact
Bus device
Fire Alarm Repeater
Figure 1 Fire alarm control panel schematic diagram