TR NWT 000078 : ISSUE 3

INTRODUCTION
2 REQUIREMENTS FOR ALL PRODUCTS
    2.1 GENERAL
    2.2 ELECTRICAL AND MECHANICAL INTEGRITY
    2.3 ADMINISTRATION OF REQUIREMENTS
3 MATERIALS AND FINISHES REQUIREMENTS
    3.1 GENERAL
    3.2 MATERIALS
          3.2.1 Fire Resistance Requirements
          3.2.2 Fire Risk Analysis
          3.2.3 Fluxes
          3.2.4 Silver
          3.2.5 Silicones
    3.3 FINISHES
4 SEPARABLE CONNECTOR REQUIREMENTS
    4.1 GENERAL
          4.1.1 Design Considerations
          4.1.2 Noble Metallizations
          4.1.3 Base Metallizations
          4.1.4 Lubrication
          4.1.5 Qualification Testing
    4.2 TWO-PART AND PWB EDGE CARD CONNECTORS
          4.2.1 Design
          4.2.2 Polarization
          4.2.3 Insertion and Removal Forces
    4.3 COMPONENT SOCKETS
          4.3.1 Durability
          4.3.2 Usage
    4.4 INSULATION DISPLACEMENT CONNECTORS
    4.5 ZERO INSERTION FORCE CONNECTORS
    4.6 COAXIAL CONNECTORS
    4.7 OPTICAL CONNECTORS
5 WIRE AND CABLE REQUIREMENTS
    5.1 METALLIC WIRE AND CABLE
          5.1.1 Outside Plant Cable
          5.1.2 Outside Plant Wire
          5.1.3 Customer Premises Wire and Cable
          5.1.4 Central Office Wire and Cable
          5.1.5 Power Wire and Cable
          5.1.6 Materials
          5.1.7 Performance
          5.1.8 Wire and Cable Preparation for Equipment
                  Assemblies
          5.1.9 Cable and Wire Termination
    5.2 OPTICAL FIBER AND OPTICAL FIBER CABLES
6 PRINTED WIRING BOARD REQUIREMENTS
    6.1 GENERAL
          6.1.3 Materials
          6.1.4 Design
          6.1.5 Manufacturing
    6.2 MULTILAYER PWBs - GENERAL REQUIREMENTS
          6.2.1 Design
          6.2.2 Manufacturing
    6.3 PRINTED WIRING BOARDS FOR SURFACE MOUNTING
          6.3.1 General Requirements
    6.4 PRINTED WIRING BOARDS FOR BACKPANELS
          6.4.1 Design
          6.4.2 Manufacturing
7 PWB ASSEMBLY REQUIREMENTS
    7.1 GENERAL
          7.1.1 Materials
          7.1.2 Assembly Design
          7.1.3 Manufacturing
    7.2 PWB ASSEMBLIES - THROUGH-HOLE MOUNTED COMPONENTS
          7.2.1 Assembly Design
          7.2.2 Manufacturing
    7.3 PWB ASSEMBLIES - SURFACE-MOUNTED COMPONENTS
          7.3.1 Materials
          7.3.2 Assembly Design
          7.3.3 Reliability
          7.3.4 Manufacturing
    7.4 BACKPANEL PWB ASSEMBLIES
          7.4.1 Assembly Design
          7.4.2 Manufacturing
8 EQUIPMENT SUB-ASSEMBLY & ASSEMBLY REQUIREMENTS
    8.1 GENERAL
    8.2 MANUFACTURING
    8.3 EQUIPMENT MODIFICATIONS
    8.4 PERFORMANCE
9 ELECTROSTATIC DISCHARGE
    9.1 GENERAL
    9.2 SUSCEPTIBILITY
    9.3 ESD RESISTANCE
    9.4 CIRCUIT PACK ESD TEST METHODS AND REQUIREMENTS
          9.4.1 Scope and Purpose
          9.4.2 ESD Considerations
          9.4.3 Test Preparation
          9.4.4 Experimental ESD Failure Threshold
                  Measurement
    9.5 ESD WARNING LABEL REQUIREMENTS
10 PRODUCT IDENTIFICATION & MARKINGS REQUIREMENTS
11 PACKAGE REQUIREMENTS
12 REPAIR & MODIFICATION OF CUSTOMER RETURN UNITS
    12.1 GENERAL
13 QUALIFICATION TEST PROCEDURES
    13.1 CORROSIVENESS OF SOLDERING FLUXES
          13.1.2 Preparation of Fluxes for Testing
          13.1.3 Test Patterns for SIR and
                  Electromigration Resistance Testing
          13.1.4 SIR Test
          13.1.5 Electromigration Resistance Test
    13.2 POLYMERIC COATINGS AND ADHESIVE MATERIALS
          13.2.1 General
          13.2.2 Visual
          13.2.3 Adhesion
          13.2.4 Corrosion of Copper
          13.2.5 Test Patterns for Insulation Resistance
                  and Electromigration Testing
          13.2.6 Insulation Resistance Testing
          13.2.7 Electromigration Resistance Testing
          13.2.8 Pre-Production Testing
    13.3 SEPARABLE CONNECTOR & SOCKETED COMPONENT LUBRICANT
          QUALIFICATION
          13.3.1 Lubricants for Gold-to-Gold or Similar
                  Noble Metallizations
          13.3.2 Lubricants for Tin-to-Tin and Solder-to-
                  Solder Separable Connections
14 TESTS AND METHODS
    14.1 GENERAL
    14.2 METAL FINISHES
          14.2.1 Noble Metal Contact Finishes
          14.2.2 Noble Metal Porosity Testing
    14.3 PWBs
          14.3.1 Preparation of Cross-Sections
          14.3.2 Plating Thickness Measurement
          14.3.3 Plated Finish Discontinuities
          14.3.4 Thermal Shock Testing of Plated-Through
                  Holes
    14.4 INSULATION RESISTANCE TESTING
          14.4.1 Equipment Required
          14.4.2 Insulation Resistance Test Patterns
          14.4.3 Terminating Test Patterns
          14.4.4 Test Procedure
          14.4.5 Data Handling
          14.4.6 Insulation Resistance Requirements
    14.5 SOLVENT EXTRACT CONDUCTIVITY TESTING
          14.5.1 Equipment and Reagents Required
          14.5.2 Calibration Procedure
          14.5.3 Testing of Production PWBs and Assemblies
GLOSSARY
REFERENCES