Fire Alarm Control Panel IQ8Control C / M
FB 798951.10.GB0 / 04.15
91
Wiring of the terminal card
F1
GND
+UBext.
1
2
3
4
5
6
7
8
+
K
K
not use
MFAB reset (+12 V or +24 V / 300 mA)
+ power supply
power supply primary loop to MFAB (+MFAB)
unlock fire department box (switched to GND max. 300 mA)
acknowiedgment
MFAB
(schematic circuit diagram)
MFABrelay
monitoring
FDKB
unlock
fire dept. key box
(schematic circuit diagram)
acknowiedgment
contact
Fig. 81: Wiring of the terminal card
The signal to enable the fire service key box (FDKB) is activated when the MFAB acknowledge signal
(terminal 8 = acknowledge) from the Fire Alarm Control Panel is detected.
Optical displays of the master box
An activated master box can be identified by a steadily lit red LED Main Detector (MFAB) on the operating panel
of the FACP. Intervening personnel such as the fire department have been notified.
If it has been impossible to activate a MFAB due to an event, possibly because the MFAB was switched off, this
is indicated on the control panel by the steadily lit red LED Notify fire department.