DIN EN 50174-2:2011 Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings; German version EN 50174-2:2009 + A1:2011 + AC:2011
2015DIN EN 50174-2:2015 Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings; German version EN 50174-2:2009 + A1:2011 + A1:2011/AC:2011 + A2:2014
2011DIN EN 50174-2:2011 Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings; German version EN 50174-2:2009 + A1:2011 + AC:2011
2009DIN EN 50174-2:2009 Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings; German version EN 50174-2:2009