Interlogix FlexZone Series, Руководство по эксплуатации продукта

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Chapter 1: System planning
FlexZone™ Product Guide
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* FlexZone sensor cable may include a mylar film between the outer black jacket and the
braided shield. The mylar film is used in the cable extrusion process and has no effect on the
cable’s function.
FlexZone sensor cable comes in 150 m lengths. Two lengths of FlexZone cable
can be spliced together to provide a 300 m sensor cable.
Cable layout guidelines
• The full length of sensor cable must be mounted on the same type of surface.
• The maximum length of cable for each side of the processor is 300 meters.
• The smallest allowable bend radius for FlexZone sensor cable is 10 cm.
• Keep vertical drops of sensor cable to less than 1 m.
• The sensor cable should follow the ground contour to maintain a constant
height above the ground.
Note: It is strongly recommended installing the sensor cables on the secure side
of the perimeter (the side of the fence opposite the threat).
Cable length calculator (flexible fences)
Typically, fence coverage requires approximately 10% more cable than the linear
fence length. The following table provides a guideline for calculating the amount
of sensor cable required for a 2.44 m fence (in meters):
Zone element Required cable length
start point + 1 m
service loops + 0.75 m X (linear zone length / 50)
zone demarcation loops + 3.5 m X number of zone boundaries
sensitivity loops + 3 m X number of corner and heavy gauge posts
cable terminations and splices + 0.5 m each
linear zone length + _ _ _ _ _ (zone length in meters)
required length of cable per pass = _ _ _ _ _ (total length in meters)
total length X number of passes = _ _ _ _ _ cable length (max. 300 m)
Rigid fences
Service loops, zone demarcation loops and sensitivity loops are not recommended on rigid
fences. Therefore, the length of cable required on a rigid fence is approximately the length of the
fence plus 5% overage.
Fence height recommendations
The following cable spacing recommendations provide good security on well-
maintained fences.
• For flexible fences up to 4.3 meters tall - a single pass of sensor cable at 1/2
the fence height.