Difference AV interface and terminal line interface terminal lines you want to know where the sales on AV interface, also known as (RCARCA), but also TV's improved interface, terminal line and the appearance is very different, mainly divided into three lines mainly audio interface (red and white lines, consisting of left and right channels) and video interface (yellow). TV interface is the RF input, this is no doubt, this is the interface first appeared in the TV above, TV imaging principle of the interface is the video signal output (CVBS) and audio (Audio) mixed with SM-type bar coding process connection, and then displays a series of separate internal device / decoded output imaging. Because the steps are more complicated, so for video, audio and video hybrid coding SM type connector how much money will cause signal interference SM type connector Which is good, so the quality will become the worst among all interfaces . What distribution box ground terminal block for? Branch ho for your answer: a dedicated ground terminal ground terminals, our electricity is now a three-phase four-wire system. Neutral and ground separated. Ground is generally connected to the outlet of the ground line to protect the electrical safety! SM type connector, SM type connector Which is good, provided by Section Division ho ho. This information consists of: providing Shenzhen Branch Hao Electronic Technology Co., Ltd. (www.kehold.com), we are business alliance member, the integrity of the whole network authentication provider. Feel free to contact us, contact: Tanjing Li