SENSTAR FiberPatrol FP1150 Series, Руководство по эксплуатации продукта

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Fences
FiberPatrol FP1150 Product Guide Page 33
Cable bypasses for buildings and structures
If there is a building or other structure along the perimeter, it can be bypassed in the same manner
as a sliding gate. In some instances, it may be possible to pull the cable through conduit that has
been embedded in the structure. Otherwise, use the below ground cable bypass method. To
ensure the bypass cable will not cause alarms, use a 13 m (43 ft.) isolation loop at each end of the
bypass. The isolation loops can be buried in FiberPatrol vaults (see
Figure 37 ). If this method is
impractical, the isolation loops can be attached to the fence (see Figure 36 and Figure 38 ).
Alternatively, the building or structure can be protected by attaching sensor cable to it’s outside
edge with custom P-brackets (see
Protecting masonry walls and buildings on page 30 ). In this
case the sensor cable on the structure should be setup as an independent zone. Isolation loops
are essential in this application due to the extremely different vibration conducting characteristics
of the fence and structure.
Figure 35 Transition loop
Note Bypassed sections of perimeters should be protected by another
technology like a microwave sensor (see
Figure 36 ).
Figure 36 Perimeter structure bypass (through structure)
transition loop 15 loops 30 m (100 ft.)
of sensor cable
fence mounted sensor cable
buried sensor cable
fence-mounted
isolation loop
fence-mounted
isolation loop
ultraWave microwave transmitter
ultraWave receiver