Historical
IEC 61588 Ed. 1.0 en:2004
Precision clock synchronization protocol for networked measurement and control systems
defines a protocol enabling precise synchronization of clocks in measurement and control systems implemented with technologies such as network communication, local computing, and distributed objects. The protocol will be applicable to systems communicating by local area networks supporting multicast messaging including, but not limited to, Ethernet
International Electrotechnical Commission [iec]