Fiber optic reflectometer WOLF-4

The described configurations allow to detect the direction of protected object's perimeter crossing.

Fiber optic reflectometer WOLF-4 is designed for perimeter protection of the extended objects with length up to 80 km. This reflectometer's modification has four fiber optic line connection ports. Such reflectometer is recommended for location two or four parallel fiber optic lines along protected object's perimeter.

Optic cable-sensor can be placed in the following ways:

1. cable on the fence and cable in the ground from both sides of reflectometer (the length of controlled perimeter is up to 80 km)
2. two cables in the ground from both sides of reflectometer (the length of controlled perimeter is up to 80 km)
3. cable on the fence, cable in the fence base and two cables in the ground from the both sides of the fence from one reflectometer's side (the length of controlled perimeter is up to 40 km)