ACCESS LINK SYSTEMS

Various factors are heightening the importance of access networks that are constructed as the interface between customers and NTT's trunk co mmunications networks. These factors include the trend toward more div ersified services, the digitization of NTT's networks and the progress being made in optical transmission technology. This article describes the development outlook for access link systems, which are an essenti al element for constructing economical access networks that possess su fficient flexibility for accommodating users' service demands.