An institution master clock system is a centralized controller for maintaining all the watches, bells, as well as potentially other tools on campus in sync. The college master clock system thus ensures an ideal possible understanding of the day-to-day timetable and also class modifications. Its life center interacts with all tools by means of wired or wireless connections, as well as it acquires its timekeeping from a local area network or external standard such as an atomic clock.
http://wifimessageboards.pbworks.com/w/page/143262681/SchoolClocks