9
PRS-UM-PPSM-EN-Rev.03-10.04.2020
4. MAIN BOARD AND CONNECTIONS
4.1 Main Board Details:
PPS Control panel has one power module and main power connection from power supply to control
panel made on this board. This board provides power to zone modules.
Diagram 8
: Control panel main board
As shown in the picture, power module has its own fuse. Power module equipped with two relay
modules as fault and alarm. Fault relay will be activated when any of the detector goes in to fault
status and alarm relay will be activated when any of the zone modules raise the alarm status.
Each zone module works independantly with the detectors connected to them. The connection made
by the V+, V-, A and B ports on zone module. Each zone module has three relays which are Alarm,
Fan 1 and Fan 2.
Connections to Zone modules
Fuse
Main power input
Backup
battery input
Fault relay
output
Alarm relay
output
