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.
When compared to other types of security systems, Fiber Optic fence systems offer many advantages over other sensing technologies:
• Immunity to electromagnetic interference (EMI) - Compared to electronic, microwave, and electric field sensors, fiber-optic sensors / not subject to interference from EMI.
• Safe for all environments - Fiber optic sensing cable does not carry or conduct electricity; it is safe for use around fuels, gases and combustible materials.
• Exceptional range - Fiber optic monitoring systems operate over far greater range than electronic sensing systems.
• Low incident of nuisance alarms - Fiber optic fence systems are not subject to interference due to animals, weather, changing light conditions, EMI, and so forth.
• Cost effective - Fiber optic sensing cable is easily incorporated into all types of existing fences and walls. The cable can also be mounted on posts as a stand-alone system. Fiber optic sensors typically do not require electrical power in the field.
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