CATV-LAN service trial using a cable-TV transmission line

摘要

CATV-LAN system provides LAN type connection to subscribers, using the existing cable-TV transmission line. Subscribers can enjoy high-speed data access.We carried out an introductory trial of the CATV-LAN system using Tojo Cable Television system in Saitama Prefecture. In this trial, we verified transmission characteristics and examined aspects of practical use such as contents of service around thelocal-area. Consequently, we confirmed this system could provide communication service comfortable for subscribers, without affecting TV-signals.In this paper, we report the outline of the system and the result of trial.