ITU-T / IEEE Standards FAQ

So, you have read the standards documents and the summary documents and the Calnex test guides but you still have questions...

The articles below might help. These are our answers to questions that we have been asked before. We will keep adding to this list as time goes on. If you still have a question that isn't answered here, then feel free to contact us at support@calnexsol.com. By the way, if your question is not strictly about the standards but more about how to test using Calnex equipment, you might want to take a look at our Product FAQ.

• G.8262: Wander Tolerance and Transfer for Option II Clocks
• G.8262: Jitter Tolerance for 1G Interfaces
• G.8262: Signal interruptions and Discontinuities
• G.8271.2: pktSelected2WayTE Step Size
• G.8273.2: SyncE Transient
• What is Fractional Frequency Offset / Drift?
• What are Clock Stratum Levels?
• What is Synchronisation Selection?
• What Frequencies should be used for testing SyncE Wander Transfer?
• What Frequencies should be used for testing SyncE Wander Tolerance?
• What is changing in the IEEE1588 Revision?
• Does the Full Timing Support architecture require SyncE?
• G.8266 Wander Tolerance and Transfer
• Considerations on Jitter measurements
• What is the relationship between clock specification and oscillator characteristics?
• What does Noise Transfer Mean?