Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition (IEC 61158-2:2014); English version EN 61158-2:2014, only on CD-ROM— 508 стр.
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition (IEC 61158-2:2010); English version EN 61158-2:2010, only on CD-ROM— 430 стр.
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition ( IEC 61158-2:2014) (english version)