After lightning strike, CBP’s air branch in Texas needs security systems repaired and replaced
Fiber optic fence security systems use light rather than electricity to detect intruders. During operation, light pulses are transmitted through fiber optic cable, which is typically installed on existing perimeter fencing. These light pulses are continually monitored for any change in light pattern or optical power, as may occur when the fiber is physically disturbed during an intrusion attempt. High security fiber-optic systems monitor the small changes in the light signal and detect any movement, vibration or pressure that occurs along a protection zone.