scope:

This third part of ETS 300 462 outlines requirements for the control of jitter and wander within synchronization Networks that are constructed according to the architectural principles described in ETS 300462-2 [2]. A synchronization network that complies with the network limits for jitter and wander specified in this ETS will be suitable for the synchronization of Synchronous Digital Hierarchy (SDH) and Public Switched Telephone Network (PSTN) networks. It combines the short term stability requirements of SDH networks with the long term stability requirements of the PSTN.