When network timing is crucial
In the past when the telephone networks started to go digital, the voice sampling frequency was carried in the physical layer of the multiplexed digital voice signal.
When ethernet based packet networks nowadays are used as carriers the need for a physical timing signal to carry an accurate frequency becomes obvious.
You need Synchronous Ethernet – SyncE!
SyncE is a network technique
It uses the physical timing signal to carry an accurate frequency. By applying a chain of SyncE-enabled Ethernet devices, it’s possible to distribute a frequency from one side of a network to the other. This is more accurate than trying to carry frequency at the packet level, because it is immune to packet delay variation.
SyncE is commonly used to provide frequency synchronisation in networks
It provides in particular an accurate reference frequency, thus enabling transporting packets in a timely manner. This technique is crucial for time critical applications such as mobile base stations and communication in substation environment in electrical distribution.
Substation environment
Real time data and operational data in electrical systems for communication, protection and monitoring.
Industrial communication
Real time communication requiring accurate end-to-end transmission and timing.
Clock synchronisation
General requirement when clocks need to be synchronised over a network, such as Ethernet.
Telecom
Migration from traditional TDM (time division multiplexing) onto packet-based architectures adds the need for precise timing and synchronisation.
Broadcasting
Digital Video Broadcasting (DVB) requiring accurate frequency and timing.
Want to know more?
View SyncE products from Fibersystem
