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FH98数字调度通信系统由1个主系统与若干个分系统构成。由于整个系统采用的是数字时分交换原理,这就要求主系统与所有分系统的数字时钟必须是严格同步的。FH98主、分系统的同步有2种方式。第1种方式是采用主从时钟方式。也就是说,在由主、分系统通过2Mb/s线路连接成的环形网络?
FH98 digital scheduling communication system consists of a main system and a number of subsystems. Since the whole system adopts the principle of digital time division exchange, it requires that the digital clock of the main system and all the subsystems must be strictly synchronized. FH98 main, subsystem synchronization in two ways. The first way is to use master-slave clock mode. In other words, by the main and subsystems through the 2Mb / s line connected into a ring network?