Specifications

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EN54 FIREFINDER PLUS INSTALLATION,COMMISSIONING & OPERATION
4.8 Brigade / PSU Monitor Board
The Brigade / PSU Monitor Board (BRD86BPSC) monitors and controls the power supply, battery
charging, monitored / un-monitored inputs, outputs and the 5 relay outputs.
Providing the Power supply has adequate capacity, monitored Bell/Sounder O/P’s are capable of
driving 2 X 2Amp circuits. Each circuit terminated in a bell/sounder or not, requires a programmable
EOL of 3K3Ω, 10KΩ, 22KΩ or Unmonitored (no EOL) to give a system normal indication if
monitoring is enabled in ConfigManager Plus. If any circuit is open or shorted, the panel buzzer will
sound and a Sounder Fault will be indicated on the Panel. Monitoring is achieved using a small
reverse polarity current. For this reason it is necessary to ensure that all alarm devices are fitted with
a series diode (1N4004 recommended) and correct polarity is observed for both the output and the
sounders they are connected to.
Relay outputs marked NO, C and NC are voltage free relay contacts.
Outputs marked +ve and -ve are fitted with a programmable EOL of 3K3Ω, 10KΩ, 22KΩ or
Unmonitored (no EOL) to allow the circuit to be monitored. If these outputs are un-used they must be
terminated at the terminal block or turned off in ConfigManager.
Once all the field devices are installed and the wiring has been correctly terminated the FireFinder
PLUS is ready to turn on. Turn the Mains power on, and connect the batteries observing correct
polarity. The green power on LED should be illuminated.
Connections
TB
Function
Type of Output
1
Aux Out x 2
Thermistor Protected
2
Relay 1
1 Amp Voltage Free Contacts
3
Relay 2
1 Amp Voltage Free Contacts
4
Relay 3
1 Amp Voltage Free Contacts
5
Relay 4
1 Amp Voltage Free Contacts
6
Relay 5
1 Amp Voltage Free Contacts
7
Monitored Outputs x 4
8
Monitored Inputs x 4
9
Battery Out / 27VDC PSU IN
Thermistor Protected
10
External Board / SW POWER
CN
Function
Type of Output
1
SGD
2
JTAG
3
External Board Controls
4-8
Power Out
1 Amp PTC protected
Fuse Information
1. Voltage Free contacts are rated at 1A @ 30V
Back EMF Protection
 Inductive loads fitted to the Brigade PSU Monitor Board MUST be fitted with
“Flyback” diodes at the load for back EMF protection.
Transient Protection
 Recognised transient line protection methodologies at the FACP and the load MUST
be considered when connecting any control devices to the outputs be they in close or remote
to the FACP.