
Perimeter layout guidelines
Page 14
FlexPS Product Guide
Use
MEX sensor cable
on standard chain-link, weldmesh and expanded metal fences. MEX
cable is thinner and lighter than Mark 2 sensor cable and does not require conditioning. MEX
sensor cable comes in 100 m (328 ft.) 200 m (656 ft.) and 300 m (984 ft.) lengths.
Use
Mark 2 sensor cable
on vinyl coated chain-link fences, on palisade fences, and on fences
that are used around sites with a high level of EMI such as electrical and solar power generating
stations. Mark 2 sensor cable has a higher sensitivity than MEX sensor cable, and requires cable
conditioning before it can be installed. Mark 2 sensor cable comes in 150 m (492 ft.) lengths. Two
lengths of Mark 2 can be spliced together to provide a 300 m (984 ft.) sensor cable.
Cable layout guidelines
•
The sensor cable must be mounted on the same or similar type of surface for each zone.
•
The maximum length of sensor cable is 300 meters (984 ft.) per zone.
•
The smallest allowable bend radius for MEX sensor cable is 4 cm (1.6 in.).
•
The smallest allowable bend radius for Mark 2 sensor cable is 7.5 cm (3 in.).
•
The smallest allowable bend radius for Armour-FLEX sensor cable is 15 cm (6 in.).
•
The sensor cable should follow the ground contour to maintain a constant height above the
ground.
Figure 6: MEX and Mark 2 cable comparison
Note
Contact Senstar Customer Service for applications advice when
ordering FlexPS sensor cable.
Mark 2 cable
polyethylene
jacket
braided
shield
loose solid
center conductor
clear tube
foil
clear tube
center conductor
aluminum foil
braided shield
outer black jacket
center conductor
braided shield
outer black jacket
MEX cable
polyethylene
jacket
braided
shield
fixed stranded
center conductor
dielectric core
MEX cable
Mark 2 cable
fixed center
conductor
loose center
conductor
dielectric core
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