This article mainly introduces the definition of GPS clock briefly, and makes a detailed exposition of the application of GPS clock. The output type is used as the basis for the explanation. It is convenient for some customers to make effective information feedback to the equipment with GPS clock as the material name.

The GPS clock is a clock device based on GPS satellite. It takes the standard UTC time as the reference benchmark and applies it to the occasion of precise timing. The use of GPS clock in our country is to convert the received standard UTC time to Beijing time, that is, the time of UTC+8.

GPS clock is mainly used in high-precision timing occasions. It was first used in military, aerospace and other fields. At present, due to the development of science and technology, there are more applications in industries such as medical, financial, education and other industries that require higher accuracy in time and time uniformity.

The appearance of GPS clock is a clock system type derived from the GPS global satellite system time source as the naming rule. In practical use, the "GPS clock" is unable to determine its specific usage type and application performance.

When GPS clock is used and selected, it also needs to take into account the output type of GPS clock at the same time. It is directly related to the slave clock equipment and the client equipment corresponding to the GPS clock device subordinate level. The time protocol and interface type of the lower equipment are the main basis for determining the output type of the GPS clock.

The output type selection of GPS clock mainly considers output type factors. The use of network timing mainly considers NTP protocol timing and PTP protocol timing. NTP timing is the standard network time protocol, PTP is the precise network time protocol, and the two are timing methods based on network timing. In the specific choice, we mainly consider application scenarios and network client devices. Choose. Such as normal hospitals, financial systems and other occasions, the main choice of NTP timing is mainly because the client devices are basically supporting NTP protocol network devices on this occasion, which can be directly integrated into the application environment for time integration, and at the same time can meet the requirements of time accuracy in such scenes. The precise network time protocol (PTP) is usually applied to higher occasions with higher accuracy. Currently, it is mainly used in 5G construction, aerospace and other applications, and its application environment meets PTP applications, and the client devices support PTP protocol.

At the same time, GPS clock device output type may also be applied to IRIG-B code, serial port 485/422/232, 1PPS, air interface and other types of time service interface, or as GPS clock reference source output 1HZ, 10HZ and other frequency signals, and GPS clock can output different types of hardware interface protocol, such as PCI, PCIe, CPCI and other kinds of bus timing.

As for the application of GPS clock, this paper gives a simple explanation based on output type, and can contact our company's business personnel for customers with GPS clock related needs.

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