Near the end of 2019, our NTP network clock server was successfully accepted and put into operation by CLP thirteen, providing standard time information service for scientific research, academic research, scientific experiment and digital management of the Institute, and achieved good product reputation.

CLP thirteen was founded in 1956 in Beijing, and moved to Shijiazhuang in 1963. It is the earliest and largest comprehensive Semiconductor Research Institute with strong technical force and professional structure.

The NTP network clock server obtains time from the satellite. After converting these information to the internal high technology processing, it transmits to the automation system time information equipment communication, power, radio and television, scientific research, security monitoring, industrial control and so on through the network port, so that it can achieve the time synchronization of the whole system.

The NTP network clock server outputs 2 road network time information, 2 serial port time information and 1 1PPS information. Among them, 2 road network time information can give 2 different physical isolated local area network time service, 2 road network physical isolation, each other does not affect, also mutually redundant backup. The 2 way serial port has standard GPS time information, and the output way is standard GPS statement. The timing accuracy of the 1 way 1PPS can reach 30ns, and it can also be used as a standard pulse source. The front panel shows the time and space of the year, the number of satellites and the working state.

NTP network clock server consists of device host and antenna.

NTP network clock server is a satellite to get time, the time information has been processed through the network port output, so as to other equipment calibration time.

The timing antenna is a receiving device that accepts the satellite carrier signal, then processes the acquired signal, transmits it to the host after the cable is processed, and outputs various interfaces. The timing antenna should work reliably, reduce the environmental impact and the influence of the electromagnetic / electromagnetic waves around. Therefore, the timing antenna must be designed for lightning protection and anti-jamming design.

Before installing antennas on fixed installations, it is recommended that users test the satellite signals and antennas first. After receiving the satellite signals normally, confirm that the antenna does not receive any star problems, then go upstairs and install them, so as to correctly judge whether the antenna is a host problem or not.

The receiving and receiving antenna needs to be mounted on the outside, such as balcony / balcony / roof, and there is no electromagnetic or radio interference around the open space. The field of white mushroom head at the top of the antenna should not be obstructed by blocks, such as buildings, woods, signal towers, etc., so as not to block the reception of satellite signals, and the power needed by the antenna is provided by the antenna feeder (coaxial cable).

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