SENSTAR FiberPatrol FP400, Руководство по эксплуатации продукта, Страница: 49 / 76

FP400 fusion splices
FP400 Product Guide Page 49
FP400 fusion splices
The sensor cable requires high quality fusion splices for the processor connection, and at all
outdoor splice locations including the start modules and end modules. Indoor splices are made in
either a rack-mounted splice tray or in the weatherproof splice enclosure. Outdoor splices are
protected inside the weatherproof outdoor splice enclosure. Each zone requires a minimum of 8
splices (4 per sensor fiber). Additional splices are required for contiguous sensor zones and fiber
drop points.
Figure 53 lists the fiber color usage recommendations.
WARNING
Use care when working with exposed optical fibers. The fibers are 125
microns in diameter and can easily penetrate skin.
Always wear safety glasses when working with optical fibers.
Always dispose of bare fibers in a sealed and labeled container that is
specifically designed to contain fiber optic waste.
NEVER dispose of bare fibers in a standard waste receptacle.
CAUTION The following procedures require specialized training and specific tools.
The person making the FP400 fusion splices must be trained and
certified to telecom industry standards.
CAUTION The two fibers used for each zone must be exactly the same length.
When stripping the sensor cable, carefully measure the 2 sensor fibers
and ensure they are the same length.
When preparing the fiber leads for the start module, end module and
processor splices, carefully measure the 2 fibers and ensure they are the
same length.
When dressing the bare fibers, ensure that the turn radius is kept above a
minimum bend radius of 32 mm (1.25 in.).
CAUTION The loss at splices must not cause the average loss of the sensor cable
to exceed 0.3 dB/km. Maximum loss for a single event = 0.1 dB, typical
fusion splice loss 0.01 dB to 0.03 dB
Figure 52 Fusion splicing tools