
Fibre-Optic Communication Subsystem Test Procedures - Part 4-2: Installed Cable Plant - Single-Mode Attenuation And Optical Return Loss Measurement (Iec 61280-4-2:2014)
出版:Verband Deutscher Elektrotechniker

专家解读视频
2015 [01/05/2015]DRAFT 2011 [01/09/2011]
DIN EN 61280-4-2 : 2015 - Corresponds
EN 61280-4-2 : 2014 - Identical
IEC 61280-4-2 : 2.0 - Identical
EN 61280-4-2:2014 - Identical