Reference details

Reference
EN 50090-4-2:2004
Official title
Home and Building Electronic Systems (HBES) - Part 4-2: Media independent layers - Transport layer, network layer and general parts of data link layer for HBES Class 1
Organisation
CENELEC
Publisher status in source
PublishedThis is the status recorded in the source, not a statement that this is the latest edition.
Source access
19 October 2026

Research and application

Begin with the official scope and the product configuration. The title identifies a subject; it does not establish every product, use condition or legal requirement covered by the publication.

Product research routes

Questions for the evidence file

  • Product-type identification
  • Performance assessment
  • Factory production control
  • Declaration and installation scope
  • Use and load assumptions
  • Installation configuration

Record the exact edition and associated amendments, the assessed object, the evidence examined and the limits of the conclusion. Explore IESQ research for detailed product and standard studies.