data communication network data synchronization method and device

摘要

this invention is a digital communications network, data synchronization method and device related to a head end (10), and plural optical network units (15) of the type passive optical network is a quarter (11, 13) contains the digital communication network, the network will be the cities, the people and the all optical network units (15) and the input (10), and the period of time is minimized, and the route control and for the purpose of all the network flow bandwidth use can in order to achieve the first, the structure, the network control and the need of data communication, and operation and management function for normal use of the bandwidth available to them as features.