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POE Camera And Other Devices Are Very Popular In Market.

Submitted by • July 2, 2013

Do you keep in mind when the power went out at your own home, and the phone nonetheless worked? The reason being that the phone company sends very low voltage power over the telephone line. This power is separate from the electrical company's network, so even if the power goes out at your own home the phone will nonetheless function.

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Voted by AaronMitchell

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