Mains wiring
The requirement for the mains supply to the fire panel is fixed wiring, using three core cable (no less
than 1mm
2
and no more than 2.5mm
2
) or a suitable three conductor system, fed from an isolating
switched fused spur, fused at 3A. This should be secure from unauthorised operation and be marked ‘FIRE
ALARM: DO NOT SWITCH OFF’. The mains supply must be exclusive to the fire panel.
(As an alternative to a switched fused
spur, a double pole isolating device may
be used (see diagram below) providing it
meets the appropriate national wiring
regulations).
0.75mm < 2.5mm
FIRE
PANEL
MAIN
DISTRIBUTION
BOARD
3A
3mm
2
2
> 1mm
2
< 2.5mm
2
Connecting mains to the Power Supply PCB
The panel’s PSU is a 185-265Va.c. 50-60Hz off line switched mode power supply that combines the
functions of a power supply unit, battery charging unit, battery monitoring unit and earth fault
monitoring unit. It should be positioned in the panel’s enclosure as shown in Fig. 3 below. DO NOT
operate the panel without the Power Supply PCB correctly mounted in the enclosure with its three
PCB retaining screws securely tightened.
DO NOT
connect mains to the Power Supply PCB until the installation is complete and ALL relevant PCBs
are correctly attached within the panel.
Fig. 3 : Power Supply PCB layout and Mains connection details
Incoming Mains cable must be segre-
gated from other cables and should
only enter the panel through either of
these knockouts. Good quality cable
glands must always be fitted.
The PSU earth strap
MUST
be connected to the spade
on the main base earth
post before operation. The spade
is compressed against a shoulder on
the post via the lowest nut. The
earth post may appear loose, this is
intended by design.
WHEN CONNECTED, THE PCB STORES
VOLTAGES AT UP TO 400Vd.c. AND
MAY BE LETHAL IF TOUCHED.
DO NOT TOUCH THE PCB WHILST THE RED
‘HAZARDOUS VOLTAGES PRESENT’ LED IS LIT.
Ten-way
connection loom
(connects to PL1 on the
Main Control PCB).
DO NOT REMOVE
WHEN PANEL IS
POWERED
The incoming
mains earth
wire MUST be
connected to
the terminal
marked and
NOT to the main
base earth post.
(The PSU earth
strap connects the
PCB to the base
earth post).
XFP ENGINEERING MANUAL • Approved Document No. DFU2200502 Rev 1 • Page 6 of 8
XFP 32 ZONE REPEATER PANEL
Battery one-shot button
Pressing this button for 2-3 secs
allows authorised maintenance
personnel to power up the
system from batteries without
connecting mains.
Battery leads (note that
a battery jumper lead is
supplied in the panel’s
accessory pack). See page
7 for further details.
Primary fuse (F1)
20mm 1ATH 250V
HRC ceramic fuse
to IEC 127
(EN60127-2).
Battery fuse (F2)
20mm x 3AF
glass fuse to
IEC 127
(EN60127-2).
