Generic Requirements for Outdoor Telephone Network Interface Devices (NIDs)

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Anna Griffin
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1 Generic Requirements for Outdoor Telephone Network Interface Devices (NIDs) Preface... Preface 1 1. Introduction General Product Description Coaxial F-Ports Network Plan Application of This Document Changes From GR-49-CORE, Issue 1, to Issue Changes From TR-NWT to GR-49-CORE, Issue How to Use These Generic Requirements Environmental Conditions Accelerated Temperature and Pretreatment Stresses for Modular Jacks and Plugs Test Conditions Test Equipment and Ambient Conditions Sample Selection and Retest Requirements Terminology Requirement Labeling Conventions Numbering of Requirement and Related Objects Requirement, Conditional Requirement, and Objective Object Identification General Requirements Features Listing Materials Outdoor NID Coaxial F-Ports Construction Safety Instructions Marking Packing and Shipping Quality Assurance and Reliability Requirements Quality Program Analysis Product Quality Surveillance Reliability Predictions Additional Components Product Design Change vii

2 GR 49 CORE 2.11 Toxic Materials Electrical Requirements Insulation Resistance Series Resistance Dielectric Withstand Dielectric Withstand to Mounting Surfaces High-Current Capacity Lightning Surge Coaxial F-Port Electrical Performance Insertion Loss Return Loss Shielding Effectiveness Fused Coaxial NID Mechanical Requirements of Conductors Conductor Pull-Out Inside Wire Installation Spacings Wiring Bonding and Grounding Environmental Requirements High-Temperature Storage/Mold Stress Temperature Cycling Temperature Cycling With Humidity Operation Life Impact Drop Test Vibration Torque Sand and Dust Rain Salt Fog Salt-Fog Exposure With Open Covers Sunshine Fungus Resistance Flammability Chemical Resistance Longitudinal Balance Following Salt Fog Immersion (Flooded Environment) Loosening Torque F-Port Vibration Modular Jacks and Plugs Mechanical Requirements Contact Construction viii

3 6.1.2 Contacts Insertion Criteria Go/No Go Environmental Rationale Criteria Aging Pretreatment Operational Life Dipping (Severe Climatic Conditions) Immersion (Flooded Conditions) Mounting Temperature Cycling With Humidity References... References 1 Glossary...Glossary 1 Requirement-Object Index... ROI 1 ix

4 GR 49 CORE x

5 List of Figures List of Figures Figures Figure 3-1. A NID With a Mated Modular Jack and Plug Figure 3-2. Test Circuit for Current-Interrupting Test Coaxial Conductors Figure 3-3. Test Circuit for the Steady-State Current Test Figure 3-4. Test Circuit for the Surge-Resistibility Test Figure 5-1. Temperature Cycling Figure 5-2. Circuit for Environmental Tests Figure 5-3. Temperature/Humidity Cycle With the Relative Humidity at 90 to 95% Figure 5-4. Longitudinal-to-Metallic Balance (Performance) Figure 6-1. Schematic Diagram Flooding Pretreatment Figure 6-2. NID Mounting Arrangement Figure 6-3. Schematic Diagram Leakage Current Figure 6-4. Temperature/Humidity Cycle With Relative Humidity at 95% xi

6 GR 49 CORE List of Figures xii

7 List of Tables List of Tables Tables Table 3-1. First-Level Surge Table 3-2. Second-Level Surge Table 3-3. VSWR and Return Loss Table 3-4. Current Levels and Minimum Test Time Table 3-5. Surge Levels - A Table 3-6. Surge Levels - B xiii

Contents. 1 Introduction. 2 General Product Information. 3 General Test Requirements

Contents. 1 Introduction. 2 General Product Information. 3 General Test Requirements 1 Introduction 1.1 Purpose......................................... 1 1 1.1.1 Reasons for Issue 2............................... 1 2 1.2 Scope.......................................... 1 2 1.3 Environmental