DIN EN 50121-4/A1 VDE 0115-121-4/A1:2020-11
Railway applications – Electromagnetic compatibility
Part 4: Emission and immunity of the signalling and telecommunications apparatus;
German version EN 50121-4:2016/A1:2019
Class/Status:
Standard,
valid
Released: 2020-11
VDE Art. No.: 0100600