Wander/jitter

Maximum time interval error (MTIE)

For SONET 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 GR-253-CORE.

Jitter requirements

Jitter transfer, tolerance, and generation requirements are met as specified in GR-253-CORE and GR-499-CORE.

Short-term stability

The SONET interfaces meet the T1.101 OC-N output short-term stability mask as specified in GR-253-CORE, Section 5.