Perimeter layout guidelines
Intelli-FLEX II product guide • • • 4 - 13
Gate bypass
If a gate is within an Intelli-FLEX II sensor zone, the length of non-sensitive feed
cable within the zone must include a sufficient amount to bypass the gate, and to
the connect the processor to the sensor cable. The length of the bypass cable is
determined by the following equation:
Length of bypass cable = (width of gate + 2 X 15 cm [6 in.]) +
(2 X mounting height of sensor cable) + (2 X 45 cm[18 in.])
If the application is with a double gate using a gate bypass module this length
must be tripled.
The total length of lead-in cable in a zone must not exceed the length given in
Table 4-1, Non-sensitive feed cable lengths,
Figure 4-10 Gate bypass
The bypass cable should be buried in a piece of PVC conduit. The length of the
PVC conduit is determined by the following equation:
Length of bypass cable conduit = (width of gate + 2 X 25 cm [10 in.])
+ (2 X 45 cm [18 in.])
protected gate
cable bypass
25 cm
(10 in.)
25 cm
(10 in.)
width of gate
height
of
sensor
cable
45 cm
(18 in.)
