Исследование принципов построения цифровых сетей оперативно-технологической связи железнодорожного транспорта Украины

Abstract

The principles of creation switching digital systems of the departmental technological communications are considered. The organization of the bridge switching stations uniting 2 Mbps streams of dispatching circles in rings of the lower and upper levels is offered. The main functions of digital bridge switching systems are defined. The two–level model of a digital departmental technological communication networks is developed.