GR 1217 CORE : ISSUE 2
Current
The latest, up-to-date edition.
GENERIC REQUIREMENTS FOR SEPARABLE ELECTRICAL CONNECTORS USED IN TELECOMMUNICATIONS HARDWARE
01-12-2013
Preface
1 Introduction
1.1 Scope
1.2 Application
1.3 Document Organization
1.4 Major Changes from TR-NWT-001217, Issue 1
1.5 Requirements Terminology
1.6 Requirement Labeling Conventions
1.6.1 Numbering of Requirement and Related Objects
1.6.2 Requirement, Conditional Requirement, and
Objective Object Identification
2 General Requirements and Administration
2.1 Safety
2.2 Other Requirements
2.3 Nonconformance
2.4 Administration
2.5 Numerical Values
2.6 Workmanship Standards
3 System Requirements for Connector Products
3.1 Environmental Exposure Requirements
3.1.1 IEEE Std 1156.1-1993 (IEEE Standard
Microcomputer Environmental Specifications
for Computer Modules)
3.1.2 IEEE Std 1156.1-1993 Performance Levels
3.1.2.1 Maximum Exposure Temperature
3.1.2.2 Other Environmental Requirements
3.2 System Quality Requirements
3.2.1 Basis for Quality Classification
3.2.2 SQ Requirement I for Small Systems
3.2.3 SQ Requirement II for Medium Systems
3.2.4 SQ Requirement III for Large Systems
4 Connector Classification and Reliability Assurance
4.1 Classification by Quality Level
4.2 Methodology to Demonstrate Reliability
4.2.1 Connector Failure Rates Determined from
Field Experience
4.2.2 Failure Mechanisms Considered in Connector
Qualification
4.3 Organization of Qualification Procedures and
Reliability Verification
4.3.1 Standard Testing Procedures
4.3.2 New Technology Prequalification and
Reliability Verification
4.4 The Concept of Performance Testing
4.5 Connector Qualification
4.6 Incoming Inspection Acceptance Tests
4.6.1 Ship-to-Stock Practices
5 Design Requirements
5.1 Physical and Mechanical Requirements
5.1.1 General
5.1.2 Contact Normal Force
5.1.3 Contact Wipe
5.1.4 Geometry of Contact Surfaces
5.1.5 Mate/Unmate Force
5.1.6 Insertion/Removal Force
5.1.7 Plated Through-Hole Requirements
for Use with Press Fit Pins
5.1.8 Contact Strength
5.1.9 Polarizing Method
5.2 Contact Metallization
5.2.1 General
5.2.2 Contact Metallization Thickness
5.2.3 Porosity
5.2.4 Contact Finish, Surface Roughness, and
Adhesion
5.2.5 Durability of Contact Finishes
5.3 Lubrication
5.3.1 Lubrication of Noble Metallizations
5.3.2 Lubrication of Non-Noble Metallizations
5.4 Electrical Requirements
5.4.1 Contact Resistance
5.4.2 Contact Resistance Stability
5.4.3 Contact Disturbance
5.4.4 Low-Nanosecond Events
5.4.5 Current Rating
5.4.6 Temperature Rise at Rating
5.4.7 Insulation Resistance
5.4.8 Withstanding Voltage
5.5 Temperature/Humidity Stress Immunity
5.6 Miscellaneous Requirements for Special Connector Types
5.6.1 Semi-Permanent Mechanical Connections
5.6.2 Component Sockets
5.6.3 Component Socket Usage
5.6.4 Zero Insertion Force Connectors
5.6.5 Coaxial Connectors
5.7 Summary Table for Design Requirements for
Separable Connectors
6 Design Verification and Performance Testing
6.1 Physical and Mechanical Requirements
6.1.1 Visual Examination
6.1.2 Examination of Dimension, Markings, and Mass
6.1.3 Contact Normal Force
6.1.4 Mate/Unmate Force
6.1.5 Insertion/Removal Force
6.1.6 Plated-through Hole Requirements for
Use with Press Fit Pins
6.1.7 Contact Strength
6.1.8 Contact Metallization Thickness
6.1.9 Contact Finish, Surface Roughness, Porosity,
and Adhesion
6.1.10 Durability of Noble Metal Contact Finishes
6.1.11 Durability of Non-noble Metal Contact Finishes
6.2 Electrical Requirements
6.2.1 Low-Level Contact Resistance (LLCR)
6.2.2 Contact Resistance (Special Test Current
Method)
6.2.3 Contact Disturbance
6.2.4 Low-Nanosecond Events
6.2.5 Current Rating
6.2.6 Temperature Rise at Rating
6.2.7 Insulation Resistance
6.2.8 Withstanding Voltage
6.3 Environmental Stress Immunity
6.3.1 General
6.3.2 Temperature Life
6.3.3 Thermal Shock
6.3.4 Moisture Resistance (Humidity with Thermal
Cycling) Test
6.3.5 Vibration and Mechanical Shock Testing
6.3.5.1 Testing "Connectors Without
Mass Loading"
6.3.5.2 Testing "PWB/Connector Assemblies"
6.3.5.3 Testing "System Level Assemblies,"
Vibration Only
6.3.6 Four-Gas MFG Testing
6.4 Special Tests for Semi-Permanent Mechanical Connections
6.4.1 Contact Resistance Stability of
Semi-Permanent Connections
6.4.2 Gas Tight Hermiticity of Non-noble Metal Contacts
6.4.3 Flex/Pull Test for Semi-Permanent Cable
Connections
6.5 Test Organization and Sequencing
6.5.1 Samples Required
6.5.2 Alternative Industry Standard Tests
6.5.3 Qualification Test Environment
6.5.4 EIA Qualification Test Sequences
7 New Technology Prequalification and Reliability
Verification
7.1 Purpose of Prequalification
7.1.1 Prequalification in TR-NWT-001217 Versus
Prequalification in GR-1217-CORE
7.1.2 Instances Where Prequalification Is Required
7.1.2.1 Specific Concerns
7.2 Sample Sizes and Acceptance Criteria
7.2.1 Sample Sizes and Criteria for Prequalification
7.2.1.1 Lot-to-Lot Sampling
7.2.1.2 Control Samples
7.3 The Four Key Environmental Tests
7.3.1 Temperature Life Test
7.3.2 Humidity with Temperature Cycling Test
7.3.3 Vibration and Mechanical Shock Testing
7.3.3.1 Testing "Connectors Without
Mass Loading"
7.3.3.2 Testing "PWB/Connector Assemblies"
7.3.3.3 Testing "System Level Assemblies"
7.3.4 Mixed Flowing Gas Testing
8 Requalification
8.1 Significant Changes Requiring Requalification
8.2 Periodic Partial Requalification
8.2.1 Quality Level II and III
8.3 Periodic Full Requalification
9 Test Methods
9.1 Environmental Tests
9.1.1 Environmental Preconditioning
9.1.1.1 Dust and Fiber Contamination
Test Module
9.1.1.2 Prewear and Postwear Module
9.1.2 Vibration and Mechanical Shock
9.1.2.1 Testing of Connectors Without
Mass Loading
9.1.2.2 Vibration and Shock Tests for
PWB/Connector Assemblies
9.1.2.3 Vibration and Shock Tests for
System Level Assemblies
9.1.3 Four Gas MFG Testing
9.1.3.1 Test Control and Verification
9.1.3.2 MFG Test Sequence with Parallel
Mated and Unmated Exposure
9.1.3.3 MFG Test Sequence with Sequential
Mated and Unmated Exposure
9.2 Fretting and Lubrication Tests
9.2.1 Fretting Test - Standard Rider/Flat Method
9.2.2 Connector Hardware Vibration Test for
Fretting and Lubrication
9.2.3 Hardware Test for Noble Metal Contacts
9.3 Metal Finishes
9.3.1 Thickness of Noble Metal Contact Finishes
9.3.2 Noble Metal Porosity Testing
9.3.2.1 Alkaline Polysulfide Test for
Porosity
9.3.2.2 Electrographic Testing - Paper
9.3.2.3 Electrographic Tests - Gel
9.3.2.4 Corrosive Gas Tests - Nitric Acid
Vapor
9.3.3 Finish Adherence
9.4 Flex/Pull Test for Permanent Cable Connections
References
Glossary
Presents proposed, generic physical design requirements for separable connector products used in a typical service provider network.
DevelopmentNote |
Supersedes TR NWT 001217. Included in DP 1217 & FR 78. (04/2001) Included in FR EP 01. (06/2011) Included in FR NEP 01. (08/2011)
|
DocumentType |
Standard
|
PublisherName |
Telcordia Technologies
|
Status |
Current
|
Supersedes |
IPC 4554 CHINESE : - | SPECIFICATION FOR IMMERSION TIN PLATING FOR PRINTED CIRCUIT BOARDS |
IPC 4556 : 0 | SPECIFICATION FOR ELECTROLESS NICKEL/ELECTROLESS PALLADIUM/IMMERSION GOLD (ENEPIG) PLATING FOR PRINTED CIRCUIT BOARDS |
IPC 4554 : 0 | SPECIFICATION FOR IMMERSION TIN PLATING FOR PRINTED CIRCUIT BOARDS |
GR 78 CORE : ISSUE 2 | GENERIC REQUIREMENTS FOR THE PHYSICAL DESIGN AND MANUFACTURE OF TELECOMMUNICATIONS PRODUCTS AND EQUIPMENT |
SR 332 : ISSUE 4 | RELIABILITY PREDICTION PROCEDURE FOR ELECTRONIC EQUIPMENT |
GR 78 CORE : ISSUE 2 | GENERIC REQUIREMENTS FOR THE PHYSICAL DESIGN AND MANUFACTURE OF TELECOMMUNICATIONS PRODUCTS AND EQUIPMENT |
GR 357 CORE : ISSUE 1 | GENERIC REQUIREMENTS FOR ASSURING THE RELIABILITY OF COMPONENTS USED IN TELECOMMUNICATIONS EQUIPMENT |
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