CLOCK SIGNAL DISTRIBUTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To obtain the system preventing deterioration in synchronization quality of a communication network by distributing a clock signal through a clock signal distribution path of an I link to each network synchronization device in a ring type sub network receiving a clock signal. SOLUTION: A ring type sub network 1 and a network synchronization device M are interconnected via a clock signal distribution path CLK in a synchronization transmitter 1-1. The ring type sub network 1 and a network synchronization device A are interconnected via the clock signal distribution path CLK in a synchronization transmitter 1-3. A ring type sub network 2 and the network synchronization device A are interconnected via the clock signal distribution path CLK in a synchronization transmitter 2-1. The network synchronization device M supplies a clock signal to the synchronization transmitter 1-1. The signal is distributed to the network synchronization device A supplying a clock signal to the ring type sub network 2.