1、 International Telecommunication Union ITU-T K.80TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2009) SERIES K: PROTECTION AGAINST INTERFERENCE EMC requirements for telecommunication network equipment (1 GHz-6 GHz) Recommendation ITU-T K.80 Rec. ITU-T K.80 (07/2009) i Recommendation ITU-T K.80
2、EMC requirements for telecommunication network equipment (1 GHz-6 GHz) Summary Recommendation ITU-T K.80 presents electromagnetic compatibility (EMC) requirements for telecommunication equipment in the frequency range between 1 GHz and 6 GHz. Source Recommendation ITU-T K.80 was approved on 14 July
3、2009 by ITU-T Study Group 5 (2009-2012) under Recommendation ITU-T A.8 procedures. Keywords EMC, protection. ii Rec. ITU-T K.80 (07/2009) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communicatio
4、n technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World
5、 Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In s
6、ome areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recogni
7、zed operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The word
8、s “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that
9、the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendatio
10、n development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are
11、 therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T K.80 (07/2009) iii CONTENTS Page 1 Scope 1 2 Ref
12、erences. 1 3 Definitions 1 4 Abbreviations and acronyms 2 5 Radiated emission between 1 GHz and 6 GHz . 2 5.1 Limits 2 6 Radiated immunity between 2 GHz and 6 GHz . 4 6.1 Test levels . 4 iv Rec. ITU-T K.80 (07/2009) Introduction This Recommendation completes the EMC requirements for telecommunicatio
13、n equipment contained in Recommendations ITU-T K.48 and ITU-T K.76, specifying requirements for phenomena at frequencies between 1 GHz and 6 GHz. Telecommunication equipment can be influenced or can influence the electromagnetic environment at frequencies between 1 GHz and 6 GHz. The need to analyse
14、 this frequency range was highlighted due to the use of radio devices in this frequency range, including mobile phone IMT-2000, wireless LAN and broadband access radio equipment. The requirements given in specific product family Recommendations supersede those given in this Recommendation. Rec. ITU-
15、T K.80 (07/2009) 1 Recommendation ITU-T K.80 EMC requirements for telecommunication network equipment (1 GHz-6 GHz) 1 Scope This Recommendation is applicable to telecommunication equipment and considers electromagnetic emission and immunity phenomena at frequencies between 1 GHz and 6 GHz. EMC emiss
16、ion phenomena below 1 GHz are covered by ITU-T K.48 and ITU-T K.76. EMC immunity phenomena below 2 GHz are covered by ITU-T K.48 and ITU-T K.76. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of th
17、is Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and othe
18、r references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T K.48 Recommendation ITU-T K.48 (2006), EMC requirements for
19、 telecommunication equipment Product family Recommendation. ITU-T K.76 Recommendation ITU-T K.76 (2008), EMC requirements for telecommunication network equipment (9 kHz-150 kHz). ITU-R SM.329 Recommendation ITU-R SM.329-10 (2003), Unwanted emissions in the spurious domain. CISPR 16-2-3 CISPR 16-2-3
20、(2006), Specification for radio disturbance and immunity measuring apparatus and methods Part 2-1: Methods of measurement of disturbances and immunity Radiated disturbance measurements. CISPR 22 CISPR 22 (2008), Information technology equipment Radio disturbance characteristics Limits and methods of
21、 measurement. IEC 60050-161 IEC 60050-161:1990, International Electrotechnical Vocabulary. Chapter 161: Electromagnetic Compatibility. IEC 61000-4-3 IEC 61000-4-3 (2008), Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic field
22、 immunity test. 3 Definitions This Recommendation uses the following terms defined elsewhere: 3.1 (electromagnetic) emission IEC 60050-161: The phenomenon by which electromagnetic energy emanates from a source. 3.2 immunity (to a disturbance) IEC 60050-161: The ability of a device, equipment or syst
23、em to perform without degradation in the presence of an electromagnetic disturbance. 2 Rec. ITU-T K.80 (07/2009) 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: DSL Digital Subscriber Line EMC ElectroMagnetic Compatibility EUT Equipment Under Test LAN
24、Local Area Network 5 Radiated emission between 1 GHz and 6 GHz Radiated emissions measurements between 1 GHz and 6 GHz shall be performed in accordance with clause 10 of CISPR 22 and clause 7.3 of CISPR 16-2-3. 5.1 Limits Telecommunication equipment installed in telecommunication centres shall meet
25、the radiated emission limits reported in Table 1 or Table 3. The emissions shall satisfy both limits when measured with the corresponding CISPR detector. Telecommunication equipment installed outside the telecommunication centres shall meet the radiated emission limits reported in Table 2 or Table 4
26、. The emissions shall satisfy both limits when measured with the corresponding CISPR detector. The limits presented in Tables 1 and 2 assume a 3 m measurement distance. The limits presented in Tables 3 and 4 assume a 10 m measurement distance. Table 1 Radiated emission limits equipment installed in
27、the telecommunication centre Frequency range (GHz) Average limit dB(V/m) Peak limit dB(V/m) 1 to 3 56 76 3 to 6 60 80 NOTE The lower limit applies at the transition frequency. Table 2 Radiated emission limits equipment installed outside of the telecommunication centre Frequency range (GHz) Average l
28、imit dB(V/m) Peak limit dB(V/m) 1 to 3 50 70 3 to 6 54 74 NOTE The lower limit applies at the transition frequency. Rec. ITU-T K.80 (07/2009) 3 Table 3 Radiated emission limits equipment installed in the telecommunication centre Frequency range (GHz) Average limit dB(V/m) Peak limit dB(V/m) 1 to 3 4
29、6 66 3 to 6 50 70 NOTE The lower limit applies at the transition frequency. Table 4 Radiated emission limits equipment installed outside of the telecommunication centre Frequency range (GHz) Average limit dB(V/m) Peak limit dB(V/m) 1 to 3 40 60 3 to 6 44 64 NOTE The lower limit applies at the transi
30、tion frequency. 5.1.1 Emission frequency range The EUT shall meet these limits within a frequency range that is determined by the highest frequency present on the equipment as follows: if the highest frequency used by the EUT is between 108 MHz and 500 MHz, the radiated disturbance shall be measured
31、 between 1 GHz and 2 GHz; if the highest frequency used by the EUT is between 500 MHz and 1 GHz, the radiated disturbance shall be measured between 1 GHz and 5 GHz. if the highest frequency used by the EUT is above 1 GHz, the radiated disturbance shall be measured between 1 GHz and either 6 GHz or 5
32、 times the highest frequency (whichever is lower). 5.1.2 Emission from radio equipment Radio equipment that meets the unintentional emissions requirements of ITU-R SM.329 does not need additional testing. Radio equipment (other than digital mobile base station equipment) shall be classified in the f
33、ollowing categories: Category 1: Equipment with an integral antenna. Category 1.1: Equipment with transmitter frequency below 6 GHz. Category 1.2: Equipment with transmitter frequency above 6 GHz. Category 2: Equipment with a non-integral antenna. The radiated emissions from radio equipment shall be
34、 measured in accordance with the test procedure presented in CISPR 22. The emission limits reported in Table 1 shall be applied to Category 1.2 equipment; the emission limits reported in Table 2 shall be applied to Category 1.2 and Category 2 equipment. Category 1.1 equipment shall comply with the s
35、purious emission limits presented in ITU-R SM.329. The limits reported in ITU-T SM.329 shall be selected in accordance with the national radio regulatory authority. 4 Rec. ITU-T K.80 (07/2009) 5.1.3 General test conditions Prior to testing, telecommunication equipment shall be installed and configur
36、ed at the test site in a manner that is representative of the normal installation conditions. Equipment normally installed in a rack or cabinet shall be tested with the rack or cabinet normally used during installation. General test conditions for telecommunication equipment are reported in clause 6
37、 of ITU-T K.48. 5.1.4 Specific test conditions ITU-T K.48 contains specific test conditions for: switching equipment (clause 7.1), transmission equipment (clause 7.2), power equipment (clause 7.3), supervisory equipment (clause 7.4), wireless LAN (clause 7.5), digital radio relay system (clause 7.7)
38、 and xDSL equipment (clause 7.8). 6 Radiated immunity between 2 GHz and 6 GHz Radiated immunity tests between 2 GHz and 6 GHz shall be performed in accordance with IEC 61000-4-3. 6.1 Test levels The test levels are reported in Table 5. Table 5 Immunity test levels Environmental phenomena Test level
39、Units Basic standard Performance criteria Frequency Range (MHz) Enclosure port Radiofrequency electromagnetic field 10 V/m IEC 61000-4-3 A 2000-2700 3 V/m IEC 61000-4-3 A 2700-6000 6.1.1 General test conditions Prior to testing, telecommunication equipment shall be installed and configured at the te
40、st site in a manner that is representative of the normal installation conditions. Equipment normally installed in a rack or cabinet shall be tested with the rack or cabinet normally used during installation. The test equipment and test environment shall meet the requirements of IEC 61000-4-3. Genera
41、l test conditions for telecommunication equipment are reported in clause 6 of ITU-T K.48. 6.1.2 Specific test conditions ITU-T K.48 contains specific test conditions for different types of telecommunication equipment, these being: switching equipment (clause 7.1), transmission equipment (clause 7.2)
42、, power equipment (clause 7.3), supervisory equipment (clause 7.4), wireless LAN (clause 7.5), radio base station (clause 7.6), digital radio relay system (clause 7.7) and xDSL equipment (clause 7.8). 6.1.3 Performance criteria The general performance criteria contained in ITU-T K.48 shall be applie
43、d. Printed in Switzerland Geneva, 2010 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G T
44、ransmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L
45、Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment
46、 Series P Terminals and subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
