SENSTAR FiberPatrol FP400, Product Manual, Page: 27 / 76

Installation recommendations
FP400 Product Guide Page 27
Gate bypasses
To get the sensor cable from one side of a gate to the other, the sensor cable is usually buried
below ground inside conduit (see
Figure 20 ). The sensor cable continues the fence coverage
beyond the gate. If site conditions make it impossible to dig underground to continue the coverage
on the other side of a gate, it may be possible to install the cable above the gate, inside protective
conduit. Otherwise, plan the installation so there is a start module on one side of the gate and an
end module on the other side (see
Figure 21 ).
Protecting swinging gates with sensor cable
A cable management kit (p/n FPKT0500) is available to protect sensor cable that is attached to a
swinging gate. To cover a swinging gate with sensor cable, the cable is passed through a section
of split conduit that is attached to the fence post with the gate’s hinges. The sensor cable is
attached to the gate panel at ¼ and ¾ of the gate height and 30 cm in from the edge (see
Figure
22 ). The cable then passes through the split conduit a second time. The sensor cable is routed
below ground through conduit, to the other side of the fence, where the fence protection continues.
All hardware on the gate must be well secured to prevent any metal on metal contact while the
gate is not in use. If there is excess sensor cable at a gate location it should be coiled into a
service loop on the hinged side of the gate.
Note Bypassed gates should be protected with another sensor technology.
Figure 20 Gate bypass
Figure 21 Start and end modules at sliding gate
microwave
sensor
seal conduit ends
magnetic gate contacts
conduit
all turns must respect the minimum bend radius
conduit
start module
end module
to FP400 processor
splice point
service loops
splice point
service loop