Installing the Main Control PCB
The panel’s Main Control PCB provides all the 5mm connector blocks for the system’s zone circuits, conventional
sounder circuits, auxiliary inputs and auxiliary outputs. It also provides the engineer with access to a wide range of
engineering functions, details of which appear later in this manual.
Before any connections can be made, the Main Control PCB must first be securely positioned inside the fire alarm
panel (see figure 10 below) using the five retaining screws. As the PCB is presented to the panel, remember to
attach the telecoms-style connecting cable to SKT2 on the reverse of the Main Control PCB and to PL1 on the Power
Supply PCB.
Important: SKT1 on the reverse of the Main Control PCB is for the connection of optional system expansion devices
such as Network Driver Cards (for repeater panels) and Relay Output Boards. If any of these devices are to be used,
refer to the individual installation instructions supplied with them as they will need to be fitted to the panel before
the Main Control PCB.
Take care when reconnecting the 5mm connector blocks that you do so the correct way round. We recommend
that you clearly label all system wiring to reduce the likelihood of incorrect connection.
Figure 10 : Main Control PCB layout
INSTALLATION & MAINTENANCE MANUAL • Approved Document No. DFU7002020 Rev 4 • Page 12 of 24
LPCB APPROVED CFP ALARMSENSE 2/4/8 ZONE FIRE ALARM PANEL
SW4
SW3
SW8
SW1
SW2
CONN
2
SW7
SW6
SW5
ACCESS
LEVEL THREE
FUNCTIONS
OPEN
CIRCUIT
DELAYS TEST
ACCESSED
TEST
PSU
FAULT
Z2
Z3
GENERAL
FAULT
DELAY MINUTES
0
1
2
3
CAUTION - RISK OF EXPLOSION IF
INCORRECT TYPE OF BATTERIES FITTED.
DISPOSE OF USED BATTERIES ACCORDING
TO THE MANUFACTURERS INSTRUCTIONS.
4
NONLATCHING
5 6
7
FAULT
OUTPUT
STATUS
SUPPLY
OK
REMOTE
OUTPUT
AUX
OUTPUT
STATUS
FOR OPERATIONAL DETAILS PLEASE
CONSULT THE MAINTENANCE MANUAL
Z4
COINCIDENCE
Z5
Z6
Z7
8
REPEATER
FAULT
SHORT
CIRCUIT
SILENCE
INTERNAL
SOUNDER
OUTPUTS
DELAYED
SOUNDER
STATUS
REMOTE
OUTPUT
STATUS
GENERAL
DISABLEMENT
GENERAL
FIRE
9
10
SYSTEM
FAULT
NEXT OPTION
CODE ENTRY(3)
ENABLE/DISABLE
LAMP TEST
CODE ENTRY(4)
CODE ENTRY(1)
CODE ENTRY(2)
ESCAPE ACCESS
SILENCE/
RESOUND
SOUNDERS
RESET
FAULT
ZONE1
ZONE4
ZONE2
ZONE3
ZONE8
ZONE7
ZONE6
ZONE5
FIRE
VR1
–
+
–
+
–
+
–
+
–
+
–
+
+
4
C
S
3
C
S
2
C
S
8
Z
CC
S
T
U
P
N
I
T
I
U
C
R
I
C
R
E
D
N
U
O
S
OUTPUTS
AUX
AUX
24V
0V
ALT
REM
CONN
5
CONN6
CONN7
CONN8
CONN9
–
+
–
–
+
–
+
–
+
Z1
DETECTOR CIRCUITS
REMOVING THIS CIRCUIT
BOARD EXPOSES HAZARDOUS
VOLTAGES - PLEASE REFER TO
INSTALLATION INSTRUCTIONS
WARNING
SENSITIVE TO STATIC
ELECTRICITY - OBSERVE
PRECAUTIONS BEFORE
HANDLING
I
O
ACCESS LEVEL 2
RST
FAULT
NO
NC
C
NO
NC
C
1
C
S
+
–
CONN10
