IEC 61850-9-1 Ed. 1.0 en:2003, Communication networks and systems in substations - Part 9-1: Specific Communication Service Mapping (SCSM) - Sampled ... unidirectional multidrop point to point link

Lays down the specific communication service mappings for the communication between bay and process level; specifies a mapping on a serial unidirectional multidrop point to point link in accordance with IEC 60044-8. Applies to the communication between merging units of electronic current or voltage-transformers and bay devices such as protection relays.