Installing The Main Control Pcb - ADEMCO LST700 Series Insallation & Maintenance Manual

LST700 SERIES FIRE ALARM PANEL

Installing the Main Control PCB

The panel's Main Control PCB provides all the connections for the system's detector circuits,
sounder circuits, auxiliary inputs and auxilary 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 11 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.
All of the 5mm connector blocks located across the top of the PCB can be removed to aid
installation. Take care when reconnecting them 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 11 : Main Control PCB layout
12
DETECTOR CIRCUITS
Z1 Z2 Z3 Z4 Z5
+ – + – + – + – + –
SW1 SW5
CODE ENTRY(1) SILENCE
INTERNAL
SOUNDER
CODE ENTRY(2)
ESCAPE ACCESS
CONN1
SW2 SW6
SILENCE/
RESOUND
SOUNDERS
SW7
SW3
NEXT OPTION
RESET
CODE ENTRY(3)
SW4
GENERAL
FAULT
ENABLE/DISABLE
LAMP TEST
CODE ENTRY(4)
CAUTION - RISK OF EXPLOSION IF
INCORRECT TYPE OF BATTERIES FITTED.
DISPOSE OF USED BATTERIES ACCORDING
TO THE MANUFACTURERS INSTRUCTIONS.
LST700 SERIES INSTALLATION & MAINTENANCE MANUAL • Approved Document No. DFU7002012 Rev 4
SOUNDER
Z6 Z7 Z8 SC2
+ – + – + – +
GENERAL
FIRE
ZONE1 ZONE2 ZONE3 ZONE4
SUPPLY
PRESENT TEST ACCESSED
REMOTE OUTPUT
SYSTEM REPEATER
PSU
FAULT FAULT
FAULT
5
4 6
SW8
3
7
2
COINCIDENCE
8
ACCESS
1
9 LEVEL THREE
FUNCTIONS
0 10
DELAY MINUTES
VR1
CIRCUITS OUTPUTS
RESET
SC3 SC4
AUX
24V
– + – + – AUX REM FAULT
FIRE
ZONE5 ZONE6 ZONE7 ZONE8
FAULT
REMOTE
FAULT
GENERAL OUTPUT
OUTPUT
DISABLEMENT STATUS
STATUS
OPEN SHORT
SOUNDER AUX OUTPUTS
CIRCUIT CIRCUIT
STATUS OUTPUT DELAYED
STATUS
DELAYS TEST
NONLATCHING
FOR OPERATIONAL DETAILS PLEASE
CONSULT THE MAINTENANCE MANUAL
INPUTS
ALERT CC 0V
WARNING
REMOVING THIS CIRCUIT
BOARD EXPOSES HAZARDOUS
VOLTAGES - PLEASE REFER TO
INSTALLATION INSTRUCTIONS
SENSITIVE TO STATIC
ELECTRICITY - OBSERVE
PRECAUTIONS BEFORE
HANDLING