JVC LST0952-001A Instructions Manual page 27

Others
Ceiling Mounting Hole [Unit: mm (inch)]
.
Front up
Screw
46 (1-13/16)
Camera Body
30 (1-3/16)
Hole for cables
Lens shooting
range
Screw
Cable direction
7.7 (3/8)
10 (7/16)
.
27