Recommendation ITU-T K.137 (01/2022) Electromagnetic compatibility requirements and measurement methods for wireline telecommunication network equipment
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Wireline telecommunication network equipment description
7 Test methods and limits
     7.1 Emission
          7.1.1 General emission requirements
          7.1.2 Emission for equipment with a special port
               7.1.2.1 HVDC port (see Annex H)
               7.1.2.2 Power over Ethernet port
          7.1.3 Harmonic
          7.1.4 Flicker
     7.2 Immunity
          7.2.1 General
8 Test conditions
     8.1 Operational conditions
     8.2 Test configuration
     8.3 Test conditions for equipment with a special port
     8.4 Test conditions for equipment with a specific communication function
9 Performance assessment
     9.1 General
10 Performance criteria
     10.1 General performance criteria
          10.1.1 Performance criterion A (continuous phenomena)
          10.1.2 Performance criterion B (transient phenomena)
          10.1.3 Performance criterion C
     10.2 Specific performance criterion
11 Report
Annex A  Emission test level
Annex B  Immunity test level
Annex C  Equipment within the scope this Recommendation
     C.1 Access equipment
     C.2 IP equipment: router and switching
     C.3 Optical transmission network equipment
     C.4 Data centre and cloud computing equipment
     C.5 Switching equipment
Annex D  Test guide for access equipment
     D.1 Introduction
     D.2 Operational conditions
     D.3 Test configurations
     D.4 Performance criteria
          D.4.1 xDSL and G.fast interface
               D.4.1.1 Performance criterion A (continuous phenomena)
               D.4.1.2 Performance criterion B (transient phenomena)
               D.4.1.3 Performance criterion C (interruptions)
          D.4.2 POTS interface
               D.4.2.1 Performance criterion A (continuous phenomena)
               D.4.2.2 Performance criterion B (transient phenomena)
               D.4.2.3 Performance criterion C (interruptions)
          D.4.3 Digital signal interface
               D.4.3.1 Performance criterion A (continuous phenomena)
               D.4.3.2 Performance criterion B (transient phenomena)
               D.4.3.3 Performance criterion C (interruptions)
Annex E  Test guide for IP equipment: router and switching
     E.1 Introduction
     E.2 Operational conditions
     E.3 Test configurations
     E.4 Performance criteria
          E.4.1 Ethernet and packet-data interfaces
               E.4.1.1 Performance criterion A (continuous phenomena)
               E.4.1.2 Performance criterion B (transient phenomena)
               E.4.1.3 Performance criterion C (interruptions)
Annex F  Test guide for optical transmission network equipment
     F.1 Introduction
     F.2 Operational conditions
     F.3 Test configurations
     F.4 Performance criteria
          F.4.1 SDH and plesiochronous digital hierarchy interfaces
               F.4.1.1 Performance criterion A (continuous phenomena)
               F.4.1.2 Performance criterion B (transient phenomena)
               F.4.1.3 Performance criterion C (interruptions)
          F.4.2 Maintenance and alarm interfaces
               F.4.2.1 Performance criterion A (continuous phenomena)
               F.4.2.2 Performance criterion B (transient phenomena)
               F.4.2.3 Performance criterion C (interruptions)
          F.4.3 Synchronization interfaces
               F.4.3.1 Performance criterion A (continuous phenomena)
               F.4.3.2 Performance criterion B (transient phenomena)
               F.4.3.3 Performance criterion C (interruptions)
          F.4.4 Ethernet and packet-data interfaces
               F.4.4.1 Performance criterion A (continuous phenomena)
               F.4.4.2 Performance criterion B (transient phenomena)
               F.4.4.3 Performance criterion C (interruptions)
Annex G  Test guide for data centre and cloud computing network equipment
     G.1 Introduction
     G.2 Operational conditions
     G.3 Test configuration
     G.4 Performance criteria
          G.4.1 Serial advanced technology attachment (SATA)/serial attached SCSI (SAS)/small computer system interface (SCSI), PCI-e, IB interface
               G.4.1.1 Performance criterion A (continuous phenomena)
               G.4.1.2 Performance criterion B (transient phenomena)
               G.4.1.3 Performance criterion C (interruptions)
          G.4.2 Service and maintenance interfaces
Annex H  Test guide for switching equipment
     H.1 Test configuration
     H.2 Operational conditions
     H.3 Specific immunity performance criteria
          H.3.1 General
          H.3.2 Digital port performance criteria
               H.3.2.1 Performance criterion A (continuous phenomena)
               H.3.2.2 Performance criterion B (transient phenomena)
               H.3.2.3 Performance criterion C (interruptions)
          H.3.3 Analogue port performance criteria
               H.3.3.1 Performance criterion A (continuous phenomena)
               H.3.3.2 Performance criterion B (transient phenomena)
               H.3.3.3 Performance criterion C (interruptions)
Annex I  Test guide for PoE port
     I.1 Introduction
     I.2 Operational conditions
     I.3 Test configurations
     I.4 Test methods
          I.4.1 Emission test method
          I.4.2 Immunity test method
     I.5 Performance criteria
          I.5.1 Performance criterion A (continuous phenomena)
          I.5.2 Performance criterion B (transient phenomena)
          I.5.3 Performance criterion C (interruptions)
     A.1.1
Bibliography
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