DIN EN 61334-4-33 : 1999 Title: Distribution automation using distribution line carrier systems - Part 4-33: Data communication protocols; data link layer; connection oriented protocol (IEC 61334-4-33:1998); German version EN 61334-4-33:1998, text in English Year: 1999 Publisher: DIN Media GmbH Availability: Within 1-2 working days