
Fibre-Optic Communication Subsystem Test Procedures - Part 4-2: Installed Cable Plant - Single-Mode Attenuation And Optical Return Loss Measurement (Endorsed By Aenor In November Of 2014.)
出版:Asociacion Espanola de Normalizacion

专家解读视频
2014 [01/11/2014]1999 [01/06/2000]
EN 61280-4-2:2014 - Identical
EN 61280-4-2 : 2014 - Identical
IEC 61280-4-2 : 2.0 - Identical