Master clocks have been keeping time synchronized in schools, hospitals, factories and offices for a long, long time. Like the conductor of an Orchestra keeping musicians moving to the same beat, the master clock keeps everyone moving at the right pace, by ensuring that every clock in its system is showing the same time.
If you have a synchronized wired or wireless clock system in your facility, you have a master clock controlling it. A master clock is an accurate time keeping clock with the ability to send synchronized time signals to all secondary clocks connected to the system. Master clocks controlled secondary clocks long before computers and network (Wi-Fi and PoE) clocks emerged.
Most of us pay little notice to the clocks when they are all working on time and in sync. However, when the clocks in your building are off, havoc could easily break loose. So how exactly does a master clock know what time is the right time? Through a very precise clock in Colorado, USA!
The atomic clock is a clock that keeps precise time at the National Institute of Science and Technology (NIST). It's precision is due to the action of connecting to a bundle of cesium atoms. The process is complex, which is why it is left up to scientists, but this clock will keep accurate time for the next 100 million years!
Your master clock obtains the atomic clock's time through a time server accessed through an internet connection. At scheduled intervals, it reads the atomic time and then broadcasts the accurate time out to all of the clocks in it's system. This ensures that everyone is on the exact same time.
Whether you are replacing an old or broken master clock, or looking into buying a new master clock and system, you have options.