① SLOC is a complete transmission solution developed by Intersil for video transmission in monitoring systems. It ensures reliable connection between analog signals and IP signals at the distance of 500 meters. It uses coaxial cables for communication, which is the best solution for seamless upgrading of video surveillance systems from analog to network.

② EoC is an access technology which is based on cable television coaxial cable networks and uses the Ethernet protocol. The transmission distance is relatively short (<200 meters). According to the different media conversion technologies, EoC technology can be divided into active EoC technology and passive EoC technology.

③ PLC is a special communication method which uses high-voltage power lines (usually 35kV or above voltage level in the field of power carrier), medium voltage power lines (10kV voltage level), or low-voltage distribution lines (380/220V user lines) as the transmission media for voice or data transmission. There are two specific applications: narrowband communication (remote meter reading) and broadband communication (power cat).

④ DSL is a combination of transmission technologies which uses telephone lines as the transmission medium. Typical applications are ADSL and VDSL, with transmission distances up to 3 kilometers.

⑤ OFDM is currently an effective method to solve the problem of transmission interference on 2-wire. Transmit Ethernet data on ordinary two core lines, with a real-time rate of up to 100Mbps.

There are various technologies that can be used in network communication, and the development of wired communication technology is changing rapidly. The subsequent usage cycle still relies on market testing, and survival of the fittest is inevitable. For example, currently, OFDM and DSL technology products on the market still have potential, while other technologies have been basically eliminated. To achieve significant development, the technology itself needs to be more closely aligned with market applications, requiring manufacturers and users to constantly explore and develop more suitable products.