40.20 Jan 16, 2026
PRVC Apr 10, 2026
IEC
TC 86/SC 86B
International Standard
PROJECT
IEC 63647-1 ED1
40.20
DIS ballot initiated: 12 weeks
Jan 16, 2026
Fibre optic interconnecting devices and passive components - Performance standard for railway rolling stock application - Part 1: General and guidance
40.20 DIS ballot initiated: 12 weeks
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