SENSTAR FiberPatrol FP1150 Series, Product Manual

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FiberPatrol components
Page 16 FiberPatrol FP1150 Product Guide
metal or vinyl coated in lengths of 20, 36 and 51 cm (8, 14, and 20 inches). For situations in which
the FiberPatrol cable will be installed on a temporary fence and will be redeployed later, UV
resistant plastic cable ties are recommended.
Sensitivity loops (fence)
Corner posts, terminal posts and heavy gauge tension posts generally have a dampening effect on
nearby fence vibrations. To compensate for this, use sensitivity loops at all corner posts, terminal
posts and heavy gauge tension posts on the fence. The sensitivity loops provide additional sensor
cable for areas that typically produce lower levels of fence noise (see
Figure 31 ).
Service loops
Service loops provide extra sensor cable for making future repairs, and for making fusion splices.
On fences, a 10 m (33 ft.) service loop is recommended for every 300 m (984 ft.) of installed
sensor cable. A 10 m service loop is also recommended on the hinged side of each gate that is
protected by sensor cable.
For all applications (buried and fence) a 10 m (33 ft.) splice point service loop is required for each
section of sensor cable at all splice enclosure locations. A 10 m service loop is typically comprised
of 5 circular loops of cable with a 60 cm (2 ft.) diameter (see
Figure 33 ). For buried applications, all
field splices are housed in weatherproof enclosures which are protected inside buried vaults.
Isolation loops (fence)
Isolation loops are optional, but are recommended for situations where a zone needs to be
isolated from adjacent zones (e.g., gate isolation). Isolation loops are also recommended as a
buffer between detecting sensor cable and software defined non-detecting cable. Fence-mounted
isolation loops use 14 in. steel cable ties to secure 7 loops of sensor cable to the fence. The 7
loops have a 60 cm (2 ft.) diameter, which requires approximately 13 m of sensor cable (see
Figure 34 ).
Buried vault
For buried cable applications field splices and terminations are protected inside buried vaults. For
fences, improved zone to zone isolation can be achieved by installing the 13 m (43 ft.) isolation
loop inside a buried vault.
Figure 9 provides the dimensions for the FiberPatrol buried vault.
Figure 9 Buried vault dimensions
46 cm
69 cm
(27 in.)
(18 in.)
49.5 cm
(19.5 in.)
82 cm
(32.25 in.)
103 cm
(40.5 in.)
top view
end view side view
NOTE: dig hole 51 cm (20 in.) D X 76 cm (30 in.) W X 107 cm (42 in.) L