Page 9
ZONESENSE EN54
INSTALLATION COMMISSIONING & OPERATION
6
Connecting to and Operation of the Main Control
Board
The Main Control Board provides a range of different field terminations
– inputs, zone circuits,
monitored outputs, voltage free outputs (relay), communications, open collector outputs and can
include an optional controls enable front panel mounted key-switch.
TB2
ZONES 1 - 4
TB801
TB800
ZONES 5 - 8
TB400
RS485
+ - SHLD
TB3
TB1
I/P's
C CC ALT
TB5
TB4
TB6
SW800
SW11
SW10
RL2
RL1
BZ1
TP33
TP14
CN400
RS485 COMMS
IN/OUT
CN3
CN4 28VAC
O N
1 2 3 4 5 6 7 8
O N
1 2 3 4
ALARM
RELAY
FAULT
RELAY
CN2
BATTERY
4 ZONE ONLY
8 ZONE ONLY
REMOTE
OUTPUT
NO C NC
FAULT
OUTPUT
NO C NC
AUX
24VDC
+ -
ALARMS
O/P's 1 & 2
+ - + -
ALARMS
O/P's 3 & 4
+ - + -
POWER
POWER FAULT
SYSTEM FAULT
CONTROLS
ENABLED
AUXILIARY POWER
FAULT
REMOTE OUTPUT
DISABLED
FAULT OUTPUT
STATUS
AUXILIARY OUTPUT
DISABLED
TEST
REMOTE OUTPUT ON
DELAY
ACTIVE
ALARM
STATUS
FIRE
FAULT
DISABLED
NEXT
LAMP
TEST
DISABLE/
ENABLE
EXIT
OVERRIDE
SILENCE
RESOUND
SILENCE BUZZER
RESET
EVACUATE
ZONE 1
ZONE 3
ZONE 5
ZONE 7
ZONE 2
ZONE 4
ZONE 6
ZONE 8
REM ANC AUX+
FLT RST
FIRE
FAULT/DISABLED/TEST
+ - + -
+ - + -
+ - + -
+ - + -
KEYSWITCH
CUT OUT
KEYSWITCH
ENABLE
DISABLE
Figure 8: Main Board Layout
6.1
Optional Key Switch
The keyswitch is optional and if fitted provides keyed level 2 access.
6.2
Communications (TB400 / CN400)
RS485 communications allows the Main Control Board to communicate with the internal and / or
external ancillary boards but is only fitted to the 4 and 8 zone F
ACP’s.
The external communication are protected to meet the relevant standards, consists of three
terminals, A, B & Shield and drives a maximum of four (4) LAM's and one (1) 8 Way Relay Board.
+ - SHLD
To LAM/s and or 8 Way Relay Board
TB400
RS485
Note: Terminal block ( communications ) is
only fitted to the 4 and 8 zone FACP's
A B SHLD
CN3
CN2
F
IR
E
F
A
U
LT
/D
IS
A
B
L
E
D
/T
E
S
T
CN400 is Located on the
Back of the Main Board
Figure 9: TB400 Termination & Location on the Main Control Card
6.3
Inputs (TB1)
Common Terminal
Used for inputs requiring a 0V potential to initiate a change of state in an output.
Class Change Input
This input allows a remote voltage free, closing set of contacts to operate the Alarm outputs. The
non-latching input is active when it is pulled down to 0v potential. When active the Alarm Outputs
will operate continuously, no visual indication is given and no other output shall operate.
Alert Input
This non-latching input allows a remote voltage free, closing set of contacts to operate the Alarm
outputs. The input is active when it is pulled down to 0v potential. When active the Alarm Outputs
will pulse at a rate of 1sec on 1 sec off, no visual indication is given and no other output will
operate.
