What are the advantages of fiber optic A/V systems in government applications?
Copper wires emit electrical signals that can be picked up with special listening equipment. To avoid these emissions, secure areas in government buildings and in military installations are electrically isolated from other parts of the facility to prevent any stray electrical emissions. Since optical fiber is immune to electrical interference and has zero electrical emissions, it is pr eferred over copper wire to carry sensitive information. To intercept an optical signal traveling down a fiber, the fiber connection must be interrupted, which is easily detectable. Since optical fiber is made of glass, it can also be used to transmit information between secure facilities that are electrically isolated.
