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Site survey
FiberPatrol FP1150 Product Guide
Page 23
Extended lead configuration
The extended lead configuration is a variation of the line configuration in which lead cable runs
from the sensor unit to one end of the perimeter. The detecting fibers S1 and S2 run the full length
of the perimeter from one end to the other. The extended lead configuration does not provide
single cut redundancy. In the event of a cut or severely damaged sensor cable, detection will
continue between the start of the sensor zone, and the damaged point in the cable.
Site survey
The first step in installing a FiberPatrol system is to conduct a detailed site survey. The survey
assesses the site conditions to determine the specific installation requirements including the burial
media, or the fence type, fence condition, fence length, zone layouts, sensor cable route, non-
detecting lead cable length, length of sensor cable required to cover the perimeter, and the
location for the electronic components.
Create a scale drawing of the site (e.g., CAD drawings), which indicates the locations of:
•
sensor unit equipment
•
fences (include type and condition)
•
gates (include type and size)
•
buildings and other structures
•
roads, driveways, sidewalks, paths, parking areas
•
trees, bushes, dense vegetation (near fence)
•
burial media
•
sensor cable
•
other existing or planned security equipment (e.g., CCTV cameras, security lighting, etc.)
•
splices (fiber drop points)
Figure 20 FiberPatrol extended lead configuration
FiberPatrol sensor cable
fiber optic cable (sensor cable/lead cable)
Note:
S1 (sensor fiber 1 - internal to fiber optic cable)
S2 (sensor fiber 2 - internal to fiber optic cable)
fusion splice
fiber optic termination
splice enclosure
sensor unit
Cable length = a + b + c
dual end module
indicates software defined start of detection
detection start point
fiber connection module
keyboard, monitor,
mouse