7IEEE 1588 Standard for a precision clock synchronization protocol for networked measurement and control systems[S]. 2002.
8IEC 61850-9-I: 2003, Communication networks and systems in substations, Part9-1 specific communication service mapping (SCSM): sampled values over serial unidirectional multi-drop point to point link[S].
9IEC 61850-9-2: 2004, Communication networks and systems in substations, part9-2 specific communication service mapping (SCSM): sampled values over ISO/1EC 8802-3[S].
