| 摘要 |
In a network of SDH equipments (e.g. synchonous multiplexers add-drop or SMA) for the communication of signals comprising data, a synchronization signal for synchronizing the data and a synchronization status message (SSM) indicating the quality of the source of the synchronization signal, when a synchronization signal is output via a sychronization signal output (SSO) to a stand-alone synchronization equipment (SASE) for conditioning and subsequently input via a synchronization signal input (SSI), the SSM information may be lost. The invention provides means for associating, within the SDH equipment, the revelant SSM with the synchronization signal input at the SSI.
|
