抄録
Power distribution automation for future will have to be provided with many advanced functions and services for customers by an economical and high-performance communication system.
To meet this requirement, an optical fiber passive multidrop system is developed by theoretical and experimental study on cable cost, transmission capacity and performance.
In this paper, the most effective branch number is shown by estimating the fiber reduction merit and the optical transmission limit. In the case of 104 customers, the economical configuration is that of two-step branches with 8 to 12 ports and the possible transmission rate is over 2 Mbps. Based on this arrangement, the multiplexed transmission method is designed and the demonstration system is constructed. According to the experiments, this system can cover the area of 5km distance.
