TR NWT 000078 : ISSUE 3
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
GENERIC PHYSICAL DESIGN REQUIREMENTS FOR TELECOMMUNICATIONS PRODUCTS AND EQUIPMENT
01-09-1997
12-01-2013
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
Defines Bellcore's view of proposed generic requirements for the physical design that are, in the opinion of Bellcore, currently appropriate for products and equipment used in the network of a typical divested BOC. Some of the major sections addressed are requirements for: materials and finishes, product identification and markings, components and assemblies, package, repair of customer plug-in units, and tests and methods.
DocumentType |
Standard
|
PublisherName |
Telcordia Technologies
|
Status |
Superseded
|
TR NWT 000057 : ISSUE 2 | FUNCTIONAL CRITERIA FOR DIGITAL LOOP CARRIER SYSTEMS |
GR 454 CORE : ISSUE 1 | GENERIC REQUIREMENTS FOR SUPPLIER-PROVIDED DOCUMENTATION |
SR 3645 : ISSUE 1 | COMPENDIUM OF REQUIREMENTS FOR THE USER INTERFACE TO TELEPHONE NETWORK EQUIPMENT |
TA NWT 000983 : ISSUE 2 | RELIABILITY ASSURANCE PRACTICES FOR OPTOELECTRONIC DEVICES IN LOOP APPLICATIONS |
GR 1110 CORE : ISSUE 4 | BROADBAND SWITCHING SYSTEM (BSS) GENERIC REQUIREMENTS |
TR NWT 000474 : ISSUE 4 | NETWORK MAINTENANCE: ALARM AND CONTROL - NETWORK ELEMENT |
GR 2903 CORE : ISSUE 1 | RELIABILITY ASSURANCE PRACTICES FOR FIBER OPTIC DATA LINKS |
GR 2912 CORE : ISSUE 1 | GENERIC REQUIREMENTS FOR RELIABILITY IN MANUFACTURING |
GR 761 CORE : ISSUE 1 | GENERIC CRITERIA FOR CHROMATIC DISPERSION TEST SETS |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.