Principle and Function of Media Converter

With the rapid advancement of informatization, people's demand for multimedia communication such as data, voice, and image is growing increasingly. Ethernet broadband access has been elevated to an increasingly important position, and the required capacity of communication networks is also expanding. Consequently, optical fiber communication, with its advantages of large information capacity, good confidentiality, light weight, small size, no relay, and long transmission distance, has been widely applied. Telephone Optical Terminals and Media Converters precisely utilize optical fiber, this high-speed transmission medium, to effectively solve Ethernet transmission issues.

Function and Principle of Media Converter

A Media Converter is an Ethernet transmission media conversion unit that interchanges short-distance twisted-pair electrical signals and long-distance optical signals. In many places, it is also referred to as an optical-electrical converter. Media Converters are generally applied in actual network environments where Ethernet cables cannot cover and optical fiber must be used to extend transmission distance, and are typically positioned at the access layer of broadband metropolitan area networks. Meanwhile, they also play a significant role in connecting the last-mile fiber link to the metropolitan area network and the outer network layers.

Similarity between Media Converter and Telephone Optical Terminal: both perform optical-electrical conversion.

Differences between Media Converter and Telephone Optical Terminal

A Media Converter only performs optical-electrical conversion without changing the encoding or processing the data in any other way. The converter is specific to Ethernet, running the 802.3 protocol, and is used only for point-to-point connections.

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