
19
Preparations
When installing the camera on a wall or a ceiling, there are four methods as specified below.
(☞ Pages 20 and 21)
• Usingthetwo-gangjunctionbox
• Installingthecameradirectlyontheceilingorwall
• Using the optional ceiling mount bracket WV-Q174 (for embedded installation on a ceiling)
SF539 SF538
• UsingtheoptionalceilingmountbracketWV-Q105*
1
(for direct mounting on a ceiling)
IMPORTANT:
• Procure4screws(M4)tosecurethecameratoawalloraceilingaccordingtothematerialof
the installation area. In this case, wood screws and nails should not be used. For mounting a
camera on a concrete wall, use an anchor bolt (for M4) or an AY plug bolt (M4) for securing.
(Recommended tightening torque: 1.6 N·m {1.18 lbf·ft})
• Requiredpull-outcapacityofasinglescrew/boltis196N{44lbf}ormore.
• Ifaceilingboardsuchasplasterboardistooweaktosupportthetotalweight,theareashall
be sufficiently reinforced or the optional ceiling mount bracket for the camera, WV-Q105, must
be used.
The mounting conditions of the camera are described as follows:
Installation place Applicable
mount bracket
Recommended
screw
Number of
screw
Minimum pull-out
strength (per 1 pc.)
Ceiling/wall Two-gang junction
box
M4 4 pcs. 196 N {44 lbf}
Ceiling/wall (Direct mounting) M4 4 pcs. 196 N {44 lbf}
SF539 SF538
Ceiling
WV-Q174
(approx. 280 g
{0.8 lbs})
– – *
2
Ceiling WV-Q105*
1
(approx. 150 g
{0.8 lbs})
– – *
2
*1 E models only
*2 Make sure that the installed mount bracket can support more than 5 times of the weight of the
camera.
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