Perimeter layout guidelines
Intelli-FLEX II product guide • • • 4 - 9
•
The cable should be mounted at least 30 cm (1 ft.) from the horizontal
support poles and tension cables.
•
The sensor cable should be attached to the fence or surface where intrusion
attempts are to be detected.
•
The sensor cable may be deployed in maximum lengths of 305 m (1,000 ft.)
per zone and can be cut on site as required. Keep in mind the combined total
of sensor cable and lead-in cable. (See
Non-sensitive feed cable lengths
•
The smallest allowable bend radius for sensor cable is 7.5 cm (3 in.).
•
To maintain a uniform response over an entire zone the sensor cable should
follow the ground contour to maintain a constant height above the ground.
Fence height considerations
Figure 4-5 Cable installation height recommendations
The following cable layouts are recommended, depending on fence height:
•
for fences up to 2.5 m (8 ft.) tall - a single pass of sensor cable
•
for fences greater than 2.5 m and less than 4.5 m in height, and on vinyl
coated fence - a double pass of sensor cable. The cable is installed at
approximately 1/3 and 2/3 the height of the fence
•
for fences exceeding 4.5 m (15 ft.) in height - three or more passes of sensor
cable. This depends on fence fabric and structure, and on the level of security
required by the system. These cable passes should be equally spaced.
½ h
h = 2.5 m
(h = 8 ft.)
h < 4.5 m
(h < 15 ft.)
and vinyl coated fences
h > 4.5 m
(h > 15 ft.)
sensor cable
½ h
h
1
/
3
h
1
/
3
h
1
/
3
¼ h
¼ h
¼ h
¼ h
