EN 55032: 2012 Electromagnetic compatibility of multimedia equipment – Emission requirements (CISPR 32: 2012)
EN55032:2015 applies to multimedia equipment (MME) having a rated r.m.s. AC or DC supply voltage not exceeding 600V. Equipment within the scope of the following standards is within the scope of BS EN55032:2015 – EN55013, EN55022, CISPR 13 and CISPR 22. MME is intended primarily for professional use. BS EN55032:2015 does not require “in-situ” testing, this is outside of the scope.
BS EN55032 splits equipment and devices into two classes, this all depends on the intended environment for the equipment.
Class B – Equipment that offers adequate protection to broadcast services in residential environments.
Class A – Equipment that mat not off adequate protection to broadcast services within residential environment.
So equipment intended for residential environments shall meet the Class B requirements. All other environments shall meet the Class A limits for both conducted and radiated emissions.
All equipment passing Class A should have the following placed in the manual:
Warning: This equipment is complaint with Class A of CISPR 32. In a residential environment this equipment may cause radio interference.
Examples of Multimedia Equipment
Information technology equipment – equipment having a primary function of entry, storage, display, retrieval, transmission, processing, switching, or control of data and/or telecommunication messages and which may be equipped with one or more ports typically for information transfer. (Office machines, electronic business equipment and telecommunication equipment.
• audio equipment– equipment which has a primary function of generation, input, storage, play, retrieval, transmission, reception, amplification, processing, switching or control of audio signals. (CD players, receivers, audio amplifiers, mixers.)
• video equipment– equipment which has a primary function of generation, input, storage, display, play, retrieval, transmission, reception, amplification, processing, switching, or control of video signals. (Video players, cameras, TV studio equipment.)
• broadcast receiver equipment– equipment containing a tuner that is intended for the reception of broadcast services. (Television and radio service receivers, terrestrial broadcast receivers.)
• satellite broadcast and/or cable transmission equipment
• entertainment lighting control equipment– equipment generating or processing electrical signals for controlling the intensity, color, nature or direction of the light from a luminaire, where the intention is to create artistic effects in theatrical, televisual or musical productions and visual presentations
• or combinations of upper mentioned equipment
Conducted emission requirements for AC/DC mains ports, telecommunication ports, signal ports must be satisfied in frequency range 150kHz-30MHz.
Radiated emission requirements must be satisfied in frequency rage:
30MHz-1GHz if internal oscillator frequency is up to 108MHz
30MHz-2GHz if internal oscillator frequency is up to 500MHz
30MHz-5GHz if internal oscillator frequency is up to 1GHz
30MHz-6GHz if internal oscillator frequency is higher than 1GHz
Internal oscillator frequency– highest fundamental frequency generated or used within the EUT or highest frequency at which it operates. This also includes frequencies which are solely used within an integrated circuit.
Limit lines for emissions EN55032:2015
Conducted Emissions Class B EN55032:2015
Conducted Emissions Class A EN55032:2015
Radiated Emissions Class B 30 to 1GHz EN55032:2015
Radiated Emissions Class A 30 to 1GHz EN55032:2015