3IEC 61850-9-1 Communication networks and systems in substations: Part 9-1 Specific communication service mapping (SCSM) sampled values over serial unidirectional multidrop point to point link. 2003.
4IEC 60044-7-1999 Instrument transformers: Part 7 electronic voltage transformers. 1999.
5IEC 60044-8--2002 Instrument transformers: Part 8 electronic voltage transformers. 2002.