Connecting The Analogue Loop To The Main Control Pcb - XFP XFP501E/X Engineering Manual

XFP 16 ZONE ANALOGUE ADDRESSABLE FIRE ALARM PANEL

Connecting the analogue loop to the Main Control PCB

The analogue loop should be connected to the Main Control PCB as illustrated in Fig. 5 below.
Remember to isolate the panel's Mains and battery backup supplies before making any connections.
The loop's earth screens should be adequately insulated and connected between the nut and washers on
the base earth distribution post using eyed crimp connectors. Do not disturb the lower nut - this must
be secure to ensure earth continuity.
The base earth distribution post is provided for terminating earth screens or drains and is NOT the
main earthing point. The installer must review the external earth bonding (if required) with
respect to the national wiring rules. If the installation requires protective earth bonding, then this
must be applied externally and in conjunction with the type of earthing system employed on site.
Note that the Main Control PCB connects to the Power Supply PCB via an 8-way telecoms-style connector
cable, the socket for which is located on the PCB's reverse. This cable must be connected before the Main
Control PCB is secured in the panel. Ensure all six PCB retaining screws are properly tightened before oper-
ation as they play an important part in the electrical safety and EMC immunity of the panel.
Fig. 5 : Typical analogue addressable loop connection
+24V I/P1 I/P2 0v
CAUTION - RISK OF EXPLOSION IF
INCORRECT TYPE OF BATTERIES FITTED.
DISPOSE OF USED BATTERIES ACCORDING
TO THE MANUFACTURERS INSTRUCTIONS.
XFP ENGINEERING MANUAL • Approved Document No. DFU1200510 Rev 3 • Page 9 of 36
Analogue loop
Base Earth Distribution Post
spring
washer
3 x plain
nut
washer
screens
crimped
connection
Do not untighten lower nut
Relay 1 Relay 2
Auxilliary
NC C NO NC C NO
GENERAL
FIRE ZONE 1
ZONE 9
D45
Mute
Beeper
SUPPLY
PRESENT TEST
GENERAL PSU
FAULT
FAULT
WARNING
REMOVING THIS CIRCUIT
BOARD EXPOSES HAZARDOUS
VOLTAGES - PLEASE REFER TO
INSTALLATION INSTRUCTIONS
PSU Earth
Distribution
Strap
Earth distribution
strap from power
supply PCB
Relay 3 Fault
Sounder Circuits
NC C NO NC C NO + 1 -
ZONE 4
ZONE 2 ZONE 3 ZONE 5
ZONE 10 ZONE12
ZONE 11 ZONE 13
GENERAL
ACCESSED DISABLEMENT
SYSTEM SOUNDER
FAULT STATUS
SENSITIVE TO STATIC
ELECTRICITY - OBSERVE
PRECAUTIONS BEFORE
HANDLING
Earth Fault Detect Addressable Loop
+ 2 - + A - + B -
B Short
A Short
ZONE 6 ZONE 8
ZONE 7
This LED will This LED will
be lit amber
be lit amber
if there is a
if there is a
short circuit short circuit
on the loop's on the loop's
B+ B- leg
A+ A- leg
ZONE 14 ZONE 15 ZONE 16
PHASED
EVACUATION
DELAYS
RUNNING
PSU PCB connector
cable (connects to rear
of Main Control PCB
FOR OPERATIONAL DETAILS PLEASE
CONSULT THE MAINTENANCE MANUAL
and PL1 on PSU PCB