AS/NZS CISPR 22:2002

1 - AS/NZS CISPR 22:2002 INFORMATION TECHNOLOGY EQUIPMENT-RADIO DISTURBANCE CHARACTERISTICS-LIMITS AND METHODS OF MEASUREMENT
4 - PREFACE
5 - CONTENTS
7 - INTRODUCTION
9 - 1 Scope and object
9 - 2 Normative references
10 - 3 Definitions
10 - 3.1 information technology equipment (ITE)
10 - 3.2 equipment under test (EUT)
10 - 3.3 host unit
10 - 3.4 module
11 - 3.5 identical modules and ITE
11 - 3.6 telecommunication ports
11 - 4 Classification of ITE
11 - 4.1 Class B ITE
11 - 4.2 Class A ITE
11 - 5 Limits for conducted disturbance at mains terminals and telecommunication ports
12 - 5.1 Limits of mains terminal disturbance voltage
12 - 5.2 Limits of conducted common mode (asymmetric mode) disturbance at telecommunication ports
13 - 6 Limits for radiated disturbance
13 - 7 Interpretation of CISPR radio disturbance limit
13 - 7.1 Significance of a CISPR limit
14 - 7.2 Application of limits in tests for conformity of equipment in series production
14 - 8 General measurement conditions
15 - 8.1 EUT configuration
17 - 8.1.1 Determination of maximum emission configuration(s)
17 - 8.1.2 EUT configuration with ground plane
18 - 8.2 Operation of the EUT
18 - 8.2.1 Operation of visual display units
18 - 8.2.2 Operation of facsimile devices
18 - 8.2.3 Operation of telephone sets
18 - 9 Method of measurement of conducted disturbance at mains terminals and telecommunication ports
19 - 9.1 Measuring receivers
19 - 9.2 Artificial mains network (AMN)
20 - 9.3 Ground plane
20 - 9.4 Equipment set-up
21 - 9.5 Measurement of disturbances at telecommunication ports
21 - 9.5.1 Methods of conformance testing
21 - 9.5.2 Impedance stabilization network (ISN)
23 - 9.5.3 Measurement at telecommunication ports
24 - 9.6 Recording of measurements
24 - 10 Method of measurement of radiated disturbance
24 - 10.1 Measuring receivers
24 - 10.2 Antenna
24 - 10.2.1 Antenna-to-EUT distance
24 - 10.2.2 Antenna-to-ground distance
25 - 10.2.3 Antenna-to-EUT azimuth
25 - 10.2.4 Antenna-to-EUT polarization
25 - 10.3 Measurement site
25 - 10.3.1 General
25 - 10.3.2 Site attenuation measurements
25 - 10.3.3 Open-area test site
25 - 10.3.4 Conducting ground plane
25 - 10.3.5 Alternative test sites
26 - 10.4 Equipment set-up
26 - 10.5 Recording of measurements
26 - 10.6 Measurement in the presence of high ambient signals
27 - 10.7 User installation testing
40 - Annex A - Site attenuation measurements of alternative test sites
40 - A.1 Method of measurement of site attenuation
45 - A.2 References
46 - Annex B - Decision tree for peak detector measurements
47 - Annex C - Possible test set-ups for common mode measurements
47 - C.1 Test set-ups for common mode measurements
50 - C.2 Measurement of cable, ferrite and AE common mode impedance
52 - Annex D - Schematic diagrams of impedance stabilization networks (ISN)
55 - Annex E - Parameters of signals at telecommunication ports
55 - E.1 General
56 - E.2 Estimation of common mode disturbance levels
57 - E.3 Reference documents

Specifies the uniform requirements for the radio disturbance level of specified information technology equipment by fixing limits of disturbance, describing methods of measurement and standardizing operating conditions and interpretation of results. This Standard is identical to and has been reproduced from CISPR 22:1997.

This publication applies to ITE as defined in 3.1.Procedures are given for the measurement of the levels of spurious signals generated by the ITE and limits are specified for the frequency range 9 kHz to 400 GHz for both class A and class B equipment. No measurements need be performed at frequencies where no limits are specified.The intention of this publication is to establish uniform requirements for the radio disturbance level of the equipment contained in the scope, to fix limits of disturbance, to describe methods of measurement and to standardize operating conditions and interpretation of results.

First published as AS/NZS 3548:1995.
Jointly revised and redesignated in part as AS/NZS CISPR 22:2002.