Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition (IEC 65C/697/CDV:2012); English version FprEN 61158-2:2012, only on CD-ROM
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.