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ME60 V800R010C10SPC500 Feature Description - System Management 01

This is ME60 V800R010C10SPC500 Feature Description - System Management
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Modules

Modules

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.
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Updated: 2019-01-04

Document ID: EDOC1100059466

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