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FIREFINDER SERIES II
INSTALLATION,
COMMISSIONING
&
OPERATION
4.10 Brigade / PSU Monitor Board (BRD85BPMB)
The Brigade / PSU Monitor Board monitors and controls the power supply, battery charging,
monitored / un-monitored inputs, outputs and the 7 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 10K EOL
resistor to give a system normal indication if monitoring is enabled in ConfigManager. If either circuit
is open or shorted, the panel buzzer will sound and a Bell 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 bells they are connected to.
Relay outputs marked NO, C and NC are voltage free relay contacts. Outputs ve and -ve
are fitted with resistors (10k) 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
.
For all outputs combined, total output current is 2A (if 2A power supply is being used).
Once all the field devices are installed and the wiring has been correctly terminated the FireFinder™
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.
OUTPUT RATINGS
TB
Function
Type of Output
Fuse Relay
3
Bell 1
2 Amp Fused
F2
RL 1
Bell 2
2 Amp Fused
F3
RL 1
4
Plant (Aux) Monitored
1 Amp Fused
F4
Plant (Aux) Non-Monitored
1 Amp Voltage Free Contacts
RL2
5
Warn Sys (Evac) Monitored
1 Amp Fused
F5
Warn Sys (Evac) Un-Monitored
1 Amp Voltage Free Contacts
RL3
6
Fault Monitored
1 Amp Fused
F6
Fault Non-Monitored
1 Amp Voltage Free Contacts
RL 4
7
Isolate
1 Amp Voltage Free Contacts
RL6
8
Alarm
1 Amp Voltage Free Contacts
RL 5
9
Valve Monitor
1 Amp Voltage Free Contacts
RL 8
10
Batt Fail ( Relay Normally Energised )
1 Amp Voltage Free Contacts
RL 7
1
Battery Output
Thermistor Protected
2
Aux Power Output 1
1 Amp Fused Not Monitored
F7
Aux Power Output 1
– EV40 use
3 Amp Fused Not Monitored
F7
Aux Power Output 2
1 Amp Fused Not Monitored
F8
Fuse Information
1. All fuses are of the Glass M205 style.
2. F1 is 6.3A
3. 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.