British Standards Document
BS EN 50128
Railway applications. Communication, signalling and processing systems. Software for railway control and protection systems

https://doi.org/10.3403/30180885U

BS EN 50128 is maintained by GEL/9. The current release of this standard is:

BS EN 50128:2011+A2:2020 Railway applications. Communication, signalling and processing systems. Software for railway control and protection systems

https://doi.org/10.3403/30180885 (published 31/07/2011)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS EN 50128:2011+A1:2020 [current until 10/08/2020]
BS EN 50128:2011 [current until 26/02/2020]
BS EN 50128:2001 [current until 31/07/2011]