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ME60 V800R010C10SPC500 Feature Description - System Management 01

This is ME60 V800R010C10SPC500 Feature Description - System Management
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The Atom GNSS timing system includes two types of modules: Atom GNSS modules and clock/time processing modules on ME devices.

Related Modules

Figure 17-1 Atom GNSS timing

Atom GNSS Modules

  • GNSS antenna: receives signals from GNSS satellites.
  • GNSS receiver: processes GNSS RF signals and obtains frequency and time information from the GNSS RF signals.
  • Phase-locked loop (PLL):

    • Frequency PLL: locks the 1PPS reference clocks and outputs a high-frequency clock.

    • Analog PLL (APLL): multiplies the system clock to a higher frequency clock.
    • Time PLL: locks the UTC time and outputs the system time.
  • Real-time clock (RTC): provides real-time timestamps for PTP event messages.
  • PTP grandmaster (GM): functions as the SyncE slave to obtain SyncE clock data.

Clock/Time Processing Modules on ME devices

An Atom GNSS module must work in conjunction with clock/time processing modules to implement clock and time synchronization. ME devices support two types of clock/time processing modules:
  • SyncE Slave: This module is used to obtain SyncE clock data.
  • PTP BC: This module typically functions as a slave BC to process PTP messages and extract PTP information.
Updated: 2019-01-04

Document ID: EDOC1100059466

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