Technical Notes TN151207TD TDM 1須Synchronous Ethernet Wander MTIE,TDEV 2須IEEE1588 Holdover PRC障Precision Reference Clock須 Macro晶cell Base Station A B Small晶cell Base Station A PRC SONET/SDH B Node PRC EEC: Ethernet Equipment Clock ITU晶T 1須 2 1 Synchronous Ethernet 障SyncE須 2須 IEEE1588 Technical Notes Ethernet SyncE IEEE1588 Ethernet SyncE PHY IEEE1588 Ethernet SyncE IEEE1588 / Node― Ethernet +/-100ppm SyncE EEC IEEE1588 Stratm3,Stratm3E MTIE TDEV Holdover MTIE TDEV Holdover PTP Packet Data Packet Data Packet Data Ethernet PHY Ethernet PHY Ethernet PHY ±100ppm clock ±100ppm clock ±100ppm clock Packet Data Ethernet Ethernet Packet Data + Physical Clock Packet Data + Physical Clock Packet Data Ethernet PHY Packet Data Ethernet PHY Ethernet PHY Recovered Clock PRC Traceable Reference EEC EEC EEC Synchronous Ethernet 障SyncE須 SyncE 障Ethernet PHY須 EEC 障Ethernet Equipment Clock須 Node Node PRC EEC ITU晶T G冗8261 Option1,2 SyncE 2 Node PRC EEC Technical Notes Packet Data + Timing Packet Ethernet PHY Packet Data PRC Traceable Reference Packet Data + Timing Packet Ethernet PHY Ethernet PHY Packet Data PTP IEEE1588 PTP IEEE1588 ±100ppm ±100ppm Recovered Clock ±100ppm IEEE1588 TCXO/OCXO IEEE1588 PTP Precision Timing Protocol PRC Node PRC Node Ethernet Clock Node 障TCXO,OCXO須 ITU晶T Layer SONET/SDH ITU晶T G冗825 L1 ITU晶T G冗813 Option 2 照2 SEC: SONET/SDH Equipment slave Clock Telcordia GR晶1244CORE Stratum3 SyncE ITU晶T G冗8261 L1 ITU晶T G冗8262 Option 1,2 照2 EEC: Ethernet Equipment Clock Telcordia GR晶1244CORE PEC 障Frequency須 ITU晶T G冗8261 障L2~3須 ITU晶T G冗8263 照3 Packet based Equipment Clock Telcordia GR晶1244CORE PEC ITU晶T G冗8271 障Phase/Time須 照1 Note 照1 照2 照3 IEEE1588 ITU晶T ITU晶T 障L2~3須 ITU晶T G冗8273 照3 Telecom Boundary Clock PEC障Phase/Time須 Clock Clock Draft 3 Technical Notes Clock Telcordia Stratum ― ― ― <Telcordia GR-1244Core Stratum3 / G.812 Option 2 (SONET/SDH Equipment Clock) / G.8262 Option 2 > - Frequency Accuracy +/-4.6ppm (20 years) - Frequency Stability +/-300ppb (1day) - Frequency Drift +/-40ppb (1day constant temp.) - MTIE, TDE ,Holdover <Telcordia GR-1244Core Stratum3E / G.812 Typ3 > - Frequency Accuracy +/-4.6ppm (20 years) - Frequency Stability +/-10ppb (1day) - Frequency Drift +/-1ppb (1day constant temp.) - MTIE, TDEV,Holdover IC Stratum3 TCXO TG晶5500 TG5032 Stratum3E OCXO OG2525 OG2522 4 OG1409
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