Center GPS satellite master clock time can be automatically accepted or accept an external source of time information, after the internal high-tech treatment, and by other interfaces precise time signal distribution apparatus when granted to other needs.
Standard synchronous clock SYN4505
GPS central master clock is used in advanced multimode satellite receivers, timing signal is easily received: large coverage, no communication blind spots, using GPS satellites, Beidou satellites, GLONASS satellite time combining multiple sources central master clock combines multiple species time reference, adaptive filtering techniques and the like inner core heartbeat detection technology, much time and timing source automatically switches fusion, with greater security and reliability.
After God energized boot into the working operation state, the front panel liquid crystal display of the original startup screen.
After the GPS default boot central master clock reference source for the Compass + GPS mode, and displays the time when the self-propelled.
Liquid crystal display and setting function
A liquid crystal display buttons on the right, the function keys corresponding to the liquid crystal display shown on the right, when a user needs to select the operating mode is switched when the current at a second working interface keys, the function representing the operation mode.
Then the system will enter the working mode interface, the device There are three operating modes, namely automatic mode, manual mode, punctuality mode, these three models represent the following meanings:
Automatic mode, the system automatically indicates to select the external reference clock source as the center of the reference master clock, boot preference satellite signals, the satellite signal is not selected when the B code signals, and can not be manually select the external reference ;
"Manual" indicates the center of the master clock system can manually select the external time reference source, the system can not automatically select the external reference.
"Punctual" punctual mode, no external reference system is represented as a clock source, clock source itself OCXO when ADF, for timing (the proviso that at least one valid received external clock signal).
In the mode of design interface, the role of the key also corresponds to the liquid crystal display shown on the right, through the key operation mode is selected to be switched automatically, manually, punctual, press OK, to confirm the selection, press Cancel to cancel the current setting.
Similarly, when the need to set up satellite mode, the current working interface, according to satellite mode, enter the satellite mode design interface, set the satellite mode. As shown below:
There are six satellite mode selection, select the following:
"GPS & BD": indicate GPS, Beidou double-hybrid system timing;
"GPS & GLONASS": indicates GPS, GLONASS dual system when mixed granted;
"BD & GLONASS": indicates Compass, the GLONASS system, dual mixed timing;
"GPS": represents a single GPS timing;
"BD": represents a single Beidou granted;
"GLONASS": represents a single timing GLONASS.
System setting function
Function provided by the system user can set three functions, respectively, disposed UTC, the baud rate setting, delay setting,
When it is desired UTC arranged in the system setting interface provided by the UTC, proceeds to UTC. Set the respective time zones, the system defaults to +8 region.
When you need to set the baud rate in the system settings interface, according to the baud rate settings, go to the baud rate setting interface, baud rate setting a total of six commonly used baud rate.
When the required time delay is provided, the system interface is provided, according to the delay provided to enter to the settings set delay range is -99999 to + 99999us, + sign indicates in advance, - represents hysteresis number, the system defaults to zero delay.
Center GPS master clock can generate AC and DC IRIG-B code signals, the various second pulse signals, when the NTP network timing, time information, and the serial port 1PPS (second signal) synchronizing pulse signal, a time signal for the other user to choose.
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