DS DS/EN 50090-5-2
DS DSEN 50090-5-2 2004-APR-05 Home and Buldng Electronc Systems HBES - Part 5-2 Meda and meda dependent layers - Network based on HBES Class 1 Twsted Par
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This European Standard defines the mandatory and optional requirements for the medium specific physical and data link layer for HBES Class 1 Twisted Pair in its two variations called TP0 and TP1. Data link layer interface and general definitions, which are media independent, are given in EN 50090-4-2.