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FiberPatrol Site Planning & Installation Guide
Page 49
OTDR (typical results range from 0.01 to 0.03 dB loss per splice; maximum allowable loss per
event is 0.1 dB).
shows a splice tray and a dual start/end module. The equipment room
fiber splices are identified in the following table.
For a fully closed redundant loop configuration using a single lead cable between the equipment
room and the perimeter fence (see
) green and brown fibers are used for the connections
to the end module in the equipment room:
Note
The loss at splices must not cause the average loss of the sensor cable
to exceed 0.3 dB/km, as measured by the OTDR. The maximum
allowable loss for any cable event is 0.1 dB.
Figure 56 FiberPatrol dual start/end module and splice tray
Sensor cable fiber
Start module fiber (label)
End module (label)
S1 - blue (cable beginning)
5
- - -
S2 - orange (cable beginning)
6
- - -
S1 - blue (cable end)
- - -
7 or 8
S2 - orange (cable end)
- - -
7 or 8
Refer to the site plan for details on dark fibers which may require splicing.
Standard sensor cable fiber splicing connections
Sensor cable fiber
Start module fiber (label)
End module (label)
S1 - blue (cable beginning)
5
- - -
S2 - orange (cable beginning)
6
- - -
S1 - green (cable end)
- - -
7 or 8
S2 - brown (cable end)
- - -
7 or 8
Refer to the site plan for details on dark fibers which may require splicing.
Single lead cable closed loop fiber splicing connections
dual start/end module
splice tray