220v AC contactor wiring diagram (physical wiring diagram) 
Fiber optic transceivers, is a short twisted-pair electric signals and optical signals over long distances to swap the Ethernet transmission media conversion unit, in many places also known as the photoelectric Converter (Fiber Converter). The product is generally used in the actual network environment where the Ethernet cable cannot be covered and the optical fiber must be used to extend the transmission distance. For example, high definition video image transmission of monitoring security engineering; It has also played a big role in helping to connect the last kilometer of fiber optic lines to the WAN and beyond.
Fiber Optic Media Converter, Fiber Media Converter, Optical Fiber Transceiver
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