PCS system time management unit

Introduction and the requirement ?Time management of relay system keeps H/W and S/W management function ? Network sync. regards H/W time as relay system time ?Network sync. receives Ref. Clock from DOTS and create system sync. , so the time among all relay systems should be same. When moving setup time is more than 4 ~ 5 sec, fare-imposing error will happen ?Owing to network sync.s H/W problem of relay system, time gab among relay system happens frequently, which can be managed by operator but there is possibility to input wrong instruction word. ?Remote time management is necessary to solve above problem ? Verify the time of relay system and Time server periodically (requires to design it considering Time Servers time hindrance ) ?When relay system is for Version Upgrade, time management function is on(considering point ) Main function and advantage ?Periodical replay systems time Update : update after verifying Time Server?Update result is saved as file : it can be used to search tracing source on relay systems H/W problem ?Solve fare-imposing error , minimizing time gab among relay systems ?Protect error of operator with remote united management ?Keep stability by managing dual time system ?Adopting NTP(Network Time Protocol) makes it equal to synchronized to time

PCS system time management unit