Installation
Backbox Mounting
14
FCPS-24FS PN 51883:B 12/04/02
SECTION 2
Installation
Carefully unpack the system and check for shipping damage. Select a location for the
cabinet that is in a clean, dry, vibration-free area where extreme temperatures are not
encountered. The area should be readily accessible with sufficient room to easily install
and maintain the power supply. Locate the top of the cabinet approximately five feet
above the floor with the hinge mounting on the left. Determine the number of
conductors required for the devices to be installed and determine the appropriate
knockouts. All wiring must be in accordance with the National and/or Local codes for
fire alarm systems and power supplies.
2.1 Backbox Mounting
The circuit board contains static-sensitive components. Always ground yourself with a
proper wrist strap before handling any boards so that static charges are removed from
the body. Use static suppressive packaging to protect electronic assemblies.
1. Remove the PC board and transformers from the backbox before installing
backbox. Set the board and transformers aside in a safe, clean place.
Avoid static
discharge which may damage static sensitive components on the board
2. Mark and predrill holes for the top two keyhole mounting bolts
3. Install two upper fasteners in the wall with the screw heads protruding
approximately ¼”
4. Using the upper keyholes, mount the backbox over the two screws
5. Mark the lower two holes, remove the backbox from the wall and drill the
mounting holes
6. Mount the backbox, install the remaining fasteners and tighten all screws
7. When the location is dry and free of construction dust, reinstall the PC board and
transformers and continue with the installation
8.
IMPORTANT!
Make certain to connect the supplied
grounding strap
between
the
Earth
terminal on TB1 (AC Terminal Block) of the main circuit board and the
chassis
ground stud
as illustrated in Figure 2.1:
!
TB1
J2
TR
AN
S
FO
R
M
E
R
2
TR
A
N
SFO
R
M
E
R
1
J1
JP3
J3
TB5
TB2
JP1
JP2
EARTH
NEUT HOT
OUT4
- NAC4 +
OUT3
- NAC3 +
OUT2
- NAC2 +
OUT1
- NAC1 +
AUX -
IN2-
AUX +
NO
NC
AUX TBL
COM
CA
UT
IO
N
HI
G
H
V
O
LT
AG
E
CA
U
T
IO
N
HI
GH
VO
L
TAG
E
NAC 4 CLASS A
A- A+
NAC 3 CLASS A
A- A+
NAC 2 CLASS A
A- A+
NAC 1 CLASS A
A- A+
Figure 2.1 Grounding Strap
Ground Stud
Grounding Strap
Earth Terminal on TB1 (AC Terminal Block)
Backbox
Mounting Plate
24fsgrnd.cdr