BS EN 55022:1998:2007 Edition
$189.07
Information technology equipment. Radio disturbance characteristics. Limits and methods of measurement
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 50 |
Protection of the radio spectrum from spurious interference is of vital importance to the maintenance of succesful radio communications. This standard specifies radio disturbance limits for potentially interfering spurious emissions generated by “computer” products . The standard is aimed at: manufacturers; design engineers; systems integrators; procurement engineers; importers of computer products; test laboratories;The standard will be used to achieve presumption of conformance to the “EU EMC directive”.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword Foreword to amendment A1 Foreword to amendment A2 |
| 5 | Contents |
| 7 | Scope and object Scope and object Normative references Definitions information technology equipment (ITE) |
| 8 | equipment under test (EUT) host unit module identical modules and ITE #telecommunications/network port 3.7 Classification of ITE Class B ITE |
| 9 | Class A ITE Limits for conducted disturbance at mains terminals and telecommunication ports Limits of mains terminal disturbance voltage Limits for conducted disturbance at the mains ports of class A ITE Limits for conducted disturbance at the mains ports of class B ITE |
| 10 | Limits of conducted common mode (asymmetric mode) disturbance at telecommunication ports Limits of conducted common mode (asymmetric mode) disturbance at telecommunication ports in the frequency range 0,15 MHz to 30 MHz for class A equipment Limits of conducted common mode (asymmetric mode) disturbance at telecommunication ports in the frequency range 0,15 MHz to 30 MHz for class B equipment Limits for radiated disturbance Limits for radiated disturbance of class A ITE at a measuring distance of 10 m |
| 11 | Limits for radiated disturbance of class B ITE at a measuring distance of 10 m Interpretation of CISPR radio disturbance limit Significance of a CISPR limit Application of limits in tests for conformity of equipment in series production |
| 12 | General measurement conditions EUT configuration |
| 14 | Operation of the EUT Operation of multifunction equipment |
| 15 | Method of measurement of conducted disturbance at mains terminals and telecommunication ports Measuring receivers Artificial mains network (AMN) |
| 16 | Ground plane Equipment set-up Measurement of disturbances at telecommunication ports |
| 19 | Recording of measurements Method of measurement of radiated disturbance Measuring receivers Antenna |
| 20 | Measurement site |
| 21 | Equipment set-up Recording of measurements Measurement in the presence of high ambient signals User installation testing |
| 22 | Test site Minimum alternative measurement site |
| 23 | Minimum size of metal ground plane |
| 24 | Test configuration: table top equipment (conducted measurement) |
| 25 | Alternative test configuration: table top equipment (conducted measurement) |
| 26 | Alternative test configuration: table top equipment (conducted measurement) – Plan view |
| 27 | Test configuration: table top equipment (conducted measurement on a radiated test site) |
| 28 | Test configuration: floor-standing equipment (conducted measurement) |
| 29 | Test configuration: floor-standing and table top equipment (conducted measurement) |
| 30 | Test configuration: table top equipment (radiated measurement) |
| 31 | Test configuration: floor-standing equipment (radiated measurement) |
| 32 | Test configuration: floor-standing and table top equipment (radiated measurement) |
| 33 | Test configuration: floor-standing equipment (overhead cables, side view) |
| 34 | Test configuration: floor-standing equipment (overhead cables, plan view) |
| 35 | (normative) Site attenuation measurements of alternative test sites (normative) Site attenuation measurements of alternative test sites Method of measurement of site attenuation Vertical polarization Horizontal polarization |
| 36 | Normalized site attenuation [AN (dB)] for recommended geometries with broadband antennas |
| 37 | Typical antenna positions for alternate site NSA measurements |
| 38 | Antenna positions for alternate site measurements for minimum recommended volume |
| 39 | References (normative) Decision tree for peak detector measurements (normative) Decision tree for peak detector measurements Decision tree for peak detector measurements |
| 40 | (normative) Possible test set-ups for common mode measurements (normative) Possible test set-ups for common mode measurements Test set-ups for common mode measurements Using CDNs described in IEC 61000-4-6 as CDN/ISNs Using a 150 7 load to the outside surface of the shield (“in situ CDN/ISN”) |
| 41 | Using a combination of current probe and capacitive voltage probe |
| 42 | Using no shield connection to ground and no ISN Measurement of cable, ferrite and AE common mode impedance |
| 43 | Calibration fixture |
| 44 | (informative) Schematic diagrams of impedance stabilization networks (ISN) (informative) Schematic diagrams of impedance stabilization networks (ISN) ISN for use with unscreened single balanced pairs ISN with high longitudinal conversion loss for use with two unscreened single balanced pairs |
| 45 | ISN for use with two unscreened single balanced pairs |
| 46 | ISN for use with two unscreened single balanced pairs (informative) Parameters of signals at telecommunication ports (informative) Parameters of signals at telecommunication ports General |
| 47 | Estimation of common mode disturbance levels |
| 48 | Reference documents |
| 49 | (normative) Normative references to international publications with their corresponding European publications (normative) Normative references to international publications with their corresponding European publications |
