The cable TV is expected to play an important role in the near future as a major medium of live data transmission in the nation-wide or a confined "information society".
ln order to meet such tomorrow's demand, the cable TV total system which has four capacity and their applications as follows, was developed.
1) Multi-channel Transmission: Full channel of 4 FM, 1 2TV and etc.
2) Various Purpose Information Service: Local origination, Video transmission by light emitting Device, Video Response System, Electronic newspaper by Facsimile and etc.
3) Wide Aerial Distribution: Multi-cascaded trunk line amplifiers by Metropolitan Cable Television standard.
4) Bi-Directional Communication: ITV Telephone using lower sub-channel.