FBD-2
7
Part Number 18165, A, 05/01/2023
2. Configuring the FBD-2 Fire alarm panel
Short Circuit as Alarm
Some older non EN54 or BS5839 compliant systems do not use internal resistors. These systems
cause a short on the zone loop when a fire is detected. When such a system is used, the alarm
panel needs to be set to “short circuit as fire” via the jumper on the back. A short on the line will
now cause a fire alarm as a result, not a fault. Note that an actual short in the wiring can no longer
be detected and will also cause a fire alarm. The panel is set to “short circuit as fire” When the top
two pins are bridged using the jumper. When the bottom two pins are bridged, the panel is set to
“short circuit as fault”. The jumper should be placed as shown in Figure 4.
Note: Changing the jumper requires a restart to take effect
Short circuit a fire:
Short circuit as fault:
Figure 4: Short circuit jumper
To Next Page
Loading...