Installing the sensor cable
FlexPI Product Guide
Page 17
•
To continue the cable run around corners, form 10 to 15 cm (4 to 6 in.) cable loops at the
corners (see
). Do not make a sharp bend in the cable to go around a corner.
•
To double-back the sensor cable for multiple cable pass installations, use two smooth,
rounded 90º turns.
•
Cut the sensor cable approximately 15 cm (6 in.) past the specified terminator location. (For
outdoor installation, leave 0.5 m (20 in.) of sensor cable to form a drip loop.
Installing cable on roofs
Install the sensor cable inside the building, on the underside of the roof (see
•
For large industrial buildings with steel beams, install the cable on the beams.
•
Space the cable 1.8 m (6 ft.) apart or less.
•
If the beams are farther apart, attach the cable to the underside of the roof.
•
For wooden trusses, attach the cable to each truss.
•
Proper calibration is critical for roof installation to ensure adequate detection of a break-in
attempt, while rejecting the noise and vibration caused by heavy rain.
Installing cable on floors
Attach the cable to the underside of the floor, either directly to the subfloor, or to the support
structure. Base the number of cable passes required, on the type of floor.
Embedding sensor cable in buildings and walls
This type of installation requires the installation of metal conduit inside the walls during the
construction of the building. Senstar recommends hiring an electrical contractor with extensive
experience in conduit installation to embed sensor cables.
Protecting windows and skylights
To use FlexPI to protect windows and skylights, run the cable along the wall or roof to the window
or skylight and then loop the cable once around. The cable should be installed close to the
opening and should be installed only on the same type of surface as the rest of the structure. In
addition, install a security grille over the window/skylight to prevent a quick smash through
intrusion. (see
Protecting pipes and data cables
To protect pipes, attach the sensor cable directly to the outside of the pipe, in a spiral pattern (use
30 cm, 12 in. spacing). To protect data cables, install the sensor cable inside the conduit with the
data cable (see
).
