Wander/Jitter

Maximum time interval error (MTIE)

For SONET/SDH optical interfaces, the maximum time interval error (MTIE) does not exceed 60 nanoseconds phase variation when timed with a wander-free reference.

Wander requirements

Wander transfer, tolerance, and generation requirements are met as specified in the following documents:

• SONET: Telcordia ^® GR-253-CORE, “Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria”, Issue 4, December 2005

• SDH: ITU-T Recommendation G.813, “Timing characteristics of SDH equipment slave clocks (SEC)”, March 2003.

Jitter requirements

Jitter transfer, tolerance, and generation requirements are met as specified in the following documents:

• SONET:

  • Telcordia ^® GR-253-CORE, “Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria”, Issue 4, December 2005

    Telcordia ^® GR-499-CORE “Transport Systems Generic Requirements (TSGR): Common Requirements”, Issue 3, September 2004

• SDH: ITU-T Recommendation G.813, “Timing characteristics of SDH equipment slave clocks (SEC)”, March 2003.

Short-term stability

The interfaces meet the OC-n/STM-n output short-term stability mask as specified in the following documents:

• SONET: Telcordia ^® GR-253-CORE, “Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria”, Issue 4, December 2005

• SDH: ITU-T Recommendation G.813, “Timing characteristics of SDH equipment slave clocks (SEC)”, March 2003.