Elec­tro­mag­netic com­pat­i­bil­ity test­ing in EMC lab EN 55032, CISPR 32

EN 55032:2015 Elec­tro­mag­netic com­pat­i­bil­ity of mul­ti­me­dia equip­ment – Emis­sion require­ments (CISPR 32:2015)

Mod­i­fied: CISPR 32:2015 Elec­tro­mag­netic com­pat­i­bil­ity of mul­ti­me­dia equip­ment – Emis­sion Require­ments

Replace: EN 55032:2012+AC:2013 Elec­tro­mag­netic com­pat­i­bil­ity of mul­ti­me­dia equip­ment – Emis­sion require­ments

Scope
Inter­na­tional stan­dard EN 55032:2015 applies to mul­ti­me­dia equip­ment (MME) hav­ing a rated r.m.s. AC or DC sup­ply volt­age not exceed­ing 600 V. Equip­ment within the scope of EN 55013 and EN 55022 and CISPR 13 and CISPR 22 is within the scope of EN 55032:2015. MME intended pri­mar­ily for pro­fes­sional use also lies in the scope of EN 55032:2015. EN 55032:2015 does not con­tain any require­ments for ‘in-​situ’ test­ing. ‘In-​situ’ test­ing is out­side the scope of this stan­dard.


Clas­si­fi­ca­tion
Inter­na­tional stan­dard EN 55032:2015 divides equip­ment, devices and appa­ra­tus it two classes, depend­ing on the envi­ron­ment where equip­ment will be used:
Class B- equip­ment that offers ade­quate pro­tec­tion to broad­cast ser­vices in res­i­den­tial envi­ron­ment.
Class A- equip­ment that may not offer ade­quate pro­tec­tion to broad­cast ser­vices within a res­i­den­tial envi­ron­ment.

Equip­ment intended pri­mar­ily for use in a res­i­den­tial envi­ron­ment shall meet the Class B lim­its. All other equip­ment shall com­ply with the Class A lim­its. Class A equip­ment shall have the fol­low­ing warn­ing in the instruc­tions for use, to inform the user of the risk of oper­at­ing this equip­ment in a res­i­den­tial environment:

Warn­ing: Oper­a­tion of this equip­ment in a res­i­den­tial envi­ron­ment could cause radio interference.


Exam­ples
Mul­ti­me­dia equip­ment (MME):
• 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


Require­ments
This sum­mary cov­ers only require­ments for radi­ated emis­sions in SAC in 3m dis­tance, con­ducted emis­sions for AC power ports using AMN, nework ports using AAN. Other require­ments are not sum­marised here.

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

30MHz-​6GHz if inter­nal oscil­la­tor fre­quency is unknown

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.

Con­ducted emis­sions AC power port


Con­ducted emis­sions wired net­work port


Radi­ated emis­sions


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