FiberPatrol configurations
FiberPatrol Site Planning & Installation Guide
Page 21
Line configurations
The line configuration is typically used when the sensor unit equipment is located at one end of the
protected perimeter, and the perimeter extends away from the equipment room in one direction.
The line configuration does not provide single cut redundancy for the full length of the sensor
cable. In the event of a cut or severely damaged sensor cable, detection will continue between the
start of the detecting sensor cable and the cut/damaged point in the cable.
illustrate the line configuration.
Figure 17 FiberPatrol split configuration (closed loop no start point splice)
Figure 18 Recommended line configuration
fiber optic cable
S1
S2
fusion splice
fiber optic termination
sensor unit
Cable length = 2a + b + c + d + e + f + g
splice enclosure
dual end module
start point of detecting cable
end point of detecting cable
fiber connection module
keyboard, monitor, mouse
fiber optic cable (sensor cable/lead cable)
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
non-detecting lead cable
Cable length = a + b
detection start point
indicates software defined start of detection
dual end module
fiber connection module
keyboard, monitor, mouse