
Fibre Optic Communication Subsystem Test Procedures - Part 4-4: Cable Plants And Links - Polarization Mode Dispersion Measurement For Installed Links (Iec 61280-4-4:2017)
出版:Verband Deutscher Elektrotechniker

專家解讀視頻
2018 [01/05/2018]DRAFT 2016 [01/02/2016]
EN 61280-4-4:2017 - Identical
IEC 61280-4-4 : 2.0 - Identical
DIN EN 61280-4-4 : 2007 - Corresponds
EN 61280-4-4 : 2017 - Identical