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TR NWT 000418 : ISSUE 2

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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GENERIC RELIABILITY ASSURANCE REQUIREMENTS FOR FIBER OPTIC TRANSPORT SYSTEMS (A MODULE OF RQGR, FR-NWT-000796)

Superseded date

01-12-1999

Published date

12-01-2013

1 INTRODUCTION
1.1 Scope and Purpose
1.2 Changes From Previous Issue
1.2.1 TA-TSY-000418, Issue 2
1.2.2 TA-NWT-000418, Issue 3
1.2.3 Current Document
1.2.4 Future Additions
1.3 Related Bellcore Documents
1.4 Requirements Terminology
1.5 Document Organization
2 SYSTEM RELIABILITY AND SERVICE AVAILABILITY
               CRITERIA
2.1 Reliability Definitions
2.2 Interoffice Applications
2.2.1 Asynchronous Transmission Products
2.2.2 SONET End Terminals and Terminal Multiplexers
2.2.3 SONET Regenerators
2.2.4 SONET Rings and Add/Drop Multiplexers
2.2.5 Digital Cross-Connect Systems with SONET
               Interfaces
2.3 Loop Applications
2.3.1 Feeder Segment
2.4 Additional System Reliability Criteria
2.4.1 System Outage Information
2.4.2 Operations System Interface Availability
2.4.3 Silent Failure Criteria
2.4.4 Memory Backup and Restoration
2.5 Equipment Maintenance
2.5.1 Maintenance Criteria for Interoffice and Feeder
               Applications
2.5.2 Maintenance Criteria for FITL Systems
2.5.3 Required Information on Maintenance Activities
2.6 Infant Mortality Criteria
2.7 Procedures for Calculating Failure Rates of
               Circuit Packs and Modules
2.7.1 Device Quality Factors
2.7.2 Device Stress Factors
2.7.3 Ambient Temperature Factors
2.7.4 Alternative Calculation Techniques
2.8 Procedures for Calculating System Unavailability
               and Related Reliability Parameters
2.8.1 System Reliability Model
2.8.2 Repair Rate Assumptions
2.8.3 Link Loss Budget
2.8.4 Outage Graphs
2.8.5 Other System Documentation
2.8.6 Summary Table of Reliability Parameters
3 SUB-ASSEMBLY AND ENVIRONMENTAL CRITERIA
3.1 Component Reliability Assurance
3.2 Physical Design Criteria
3.3 Environmental Criteria
3.4 Third-Party Equipment
4 TESTING
4.1 Product Life Cycle
4.2 System Qualification
4.2.1 Product Specifications
4.2.2 General Qualification Tests and Parameters
4.2.3 Special Tests
4.2.4 Environmental Tests
4.2.5 Reliability Model Verification
4.2.6 Maintenance Procedures
4.2.7 Qualification Report
4.3 Periodic Requalification Requirements
4.3.1 General Tests
4.3.2 Special Tests
4.3.3 Environmental Tests
4.3.4 Requalification Report
4.3.5 Reliability Model Verification
4.4 Reliability Testing
4.4.1 Test Purpose and Frequency
4.4.2 Test Conditions and Procedure
4.5 First Office Application Qualification
4.6 Manufacturing Tests
4.6.1 Design for Testability
4.6.2 Routine Manufacturing Tests
4.6.3 Data Analysis and Reporting
4.7 Standardized Test Procedures
5 MANUFACTURING AND ASSEMBLY RELIABILITY
5.1 Incoming Lot Controls
5.2 Manufacturing and Assembly Practices
5.2.1 Manufacturing Process Qualification
5.2.2 Technologies
5.2.3 Manufacturing Controls
5.2.4 In-Process Tests and Inspections
5.2.5 Manufacturing Process Requalification
5.2.6 ESD Controls
5.3 Circuit Pack and System Functional Testing
5.4 Corrective Action Program
6 SOFTWARE RELIABILITY (AND QUALITY)
6.1 Definitions
6.2 Design for Reliability and Quality
6.2.1 Fault Detection, Containment, Recovery and
               Reporting
6.2.2 Fault History
6.2.3 Trend Detection
6.2.4 Prevention of Interference
6.2.5 Concurrency
6.2.6 Modularity/Interdependency
6.2.7 High-Level Languages
6.2.8 Design & Architecture Documentation
6.2.9 Database
6.2.10 Data Integrity
6.2.11 Operations Systems (OS) Compatibility
6.2.12 NE Software Release Information
6.3 Firmware
6.3.1 Design Methodology
6.3.2 Firmware/Software Coupling
6.3.3 Stability
6.3.4 Mounting
6.3.5 Classification
6.3.6 Considerations for Update Procedures
6.3.7 Circuit Pack Level Testing
6.3.8 Pass/Fail Indication
6.3.9 Record Administration
6.3.10 Change History
6.3.11 Identification
6.3.12 Downward/Upward Compatibility
6.3.13 Traceability
6.3.14 Spare Circuit Pack Administration
6.3.15 Documentation
6.4 Patching
6.4.1 Patch Monitoring
6.4.2 Patch Assurance
6.4.3 Patch Sequence Numbers and Identification
6.4.4 Patch Propagation to Other Releases
6.4.5 Patch Space
6.4.6 Defective Patches
6.4.7 Writable Firmware Devices
6.4.8 Feature Patching
6.4.9 Patch Information
6.4.10 Patching Tools
6.4.11 Patch Measurements
6.5 Testing
6.5.1 Criteria Common to Test Phases
6.5.2 Module Testing
6.5.3 Functional Unit Testing
6.5.4 Integration Test
6.5.5 System Test
6.5.6 First Office Application (FOA) Testing
6.6 Feature Release Delivery Information
6.6.1 Feature/Release Availability Information
6.6.2 Feature Request Dates
6.6.3 Release Support Period
6.6.4 Dropped or Delayed Features or Releases
6.7 Downtime and Service Impact
6.8 Referenced Software Criteria
6.8.1 Software Quality Program Generic Requirements
6.8.2 Software Reliability and Quality Acceptance
               Requirements
6.8.3 R & Q Measurements for Telecommunications Systems
7 FIELD PERFORMANCE AND CUSTOMER SUPPORT
7.1 Field Performance
7.1.1 Collection and Analysis Program Capabilities
7.1.2 Hardware Performance Tracking
7.1.3 Software Performance Tracking
7.1.4 Product Repair
7.1.5 No Trouble Found (NTF) Circuit Packs
7.1.6 Dead On Arrival (DOA) Circuit Packs
7.1.7 Turnaround Time for Repairs
7.1.8 Engineering Complaints
7.1.9 Corrective Action
7.2 Customer Support
7.2.1 General Documentation and Reporting of Data
7.2.2 Engineering, Ordering and Sparing
7.2.3 Training
7.2.4 Installation
7.2.5 Customer Maintenance
7.2.6 Product Updates
7.2.7 Technical Assistance
8 SUMMARY LISTING OF CRITERIA
9 GLOSSARY OF ACRONYMS
APPENDIX A - Temperature Cycle Endurance Test
A.1 Test Conditions
A.1.1 Temperature Extremes
A.1.2 Soak Time
A.1.3 Ramp Rate
A.1.4 Test Duration
A.1.5 Humidity
A.2 Test Configurations
A.3 Measurements
A.3.1 Measurement Parameters
A.3.2 Frequency of Measurements
A.4 Pass/Failure Criteria
A.5 Example Test Set-Up
APPENDIX B - Example Tables for Reliability Model Verification
APPENDIX C - Overview of Bellcore Sampling Plans
REFERENCES
SUBJECT INDEX

Presents Bellcore's view of proposed generic reliability assurance requirements for fiber optic transport systems. Included are requirements covering systems, development & manufacturing programs, customer support & field reliability, & surveillance programs.

DevelopmentNote
REPLACES TA-NWT-000418
DocumentType
Standard
PublisherName
Telcordia Technologies
Status
Superseded
SupersededBy

GR 929 ILR : ISSUE 2A RELIABILITY AND QUALITY MEASUREMENTS FOR TELECOMMUNICATIONS SYSTEMS (RQMS)
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
SR 4037 : ISSUE 1 DEGRADATION IN TRANSMISSION PERFORMANCE OF FIBER OPTIC VIDEO CIRCUITS

TR TSY 000179 : ISSUE 2 SOFTWARE QUALITY PROGRAM GENERIC REQUIREMENTS (SQPR) (A MODULE OF RQGR, FR-NWT-000796)
TA NWT 000942 : ISSUE 2 HARDWARE RELIABILITY ASSURANCE PROGRAM (H-RAP) GENERIC REQUIREMENTS FOR TELECOMMUNICATIONS PRODUCTS
TR NWT 001089 : ISSUE 1 ELECTROMAGNETIC COMPATIBILITY AND ELECTRICAL SAFETY GENERIC CRITERIA FOR NETWORK TELECOMMUNICATION EQUIPMENT (A MODULE OF LSSGR, FR-NWT-000064 AND TSGR, FR-NWT-000440
TR NWT 000930 : ISSUE 2 GENERIC REQUIREMENTS FOR HYBRID MICROCIRCUITS USED IN TELECOMMUNICATIONS EQUIPMENT
TR NWT 000468 : ISSUE 1 RELIABILITY ASSURANCE PRACTICES FOR OPTOELECTRONIC DEVICES IN CENTRAL OFFICE APPLICATIONS
TIA 526-11 : 91(R2014) OFSTP-11 - MEASUREMENT OF SINGLE-REFLECTION POWER PENALTY FOR FIBER OPTIC TERMINAL EQUIPMENT
TR NWT 000874 : ISSUE 4 AN INTRODUCTION TO BELLCORE'S RELIABILITY AND QUALITY GENERIC REQUIREMENTS (A MODULE OF RQGR, FR-NWT-000796)
TR NWT 000332 : ISSUE 4 RELIABILITY PREDICTION PROCEDURE FOR ELECTRONIC EQUIPMENT (A MODULE OF RQGR, FR-NWT-000796)
TR OPT 000839 : ISSUE 3 SUPPLIER PROVIDED TRAINING GENERIC REQUIREMENTS (A MODULE OF LSSGR, FR-NWT-000064; OTGR, FR-NWT-000439 AND TSGR, FR-NWT-000440)
TR TSY 000009 : ISSUE 1 ASYNCHRONOUS DIGITAL MULTIPLEXES REQUIREMENTS AND OBJECTIVES
TR NWT 000870 : ISSUE 1 ELECTROSTATIC DISCHARGE CONTROL IN THE MANUFACTURE OF TELECOMMUNICATIONS EQUIPMENT
SR TSY 001171 : ISSUE 1 METHODS AND PROCEDURES FOR SYSTEM RELIABILITY ANALYSIS
TA NWT 001274 : ISSUE 1
TR TSY 000010 : ISSUE 1 SYNCHRONOUS DS3 ADD DROP MULTIPLEX (ADM 3/X) REQUIREMENTS AND OBJECTIVES
TIA 526-3 : 2007 FIBER OPTIC TERMINAL EQUIPMENT RECEIVER SENSITIVITY AND MAXIMUM RECEIVER INPUT
TR TSY 000303 : ISS1/SUP3/REV1 INTEGRATED DIGITAL LOOP CARRIER (IDLC) SYSTEM GENERIC REQUIREMENTS, OBJECTIVES AND INTERFACE
TIA 526-15 : 2007 JITTER TOLERANCE MEASUREMENT
TR NWT 000917 : ISSUE 1 SONET REGENERATOR (SONET RGTR) EQUIPMENT GENERIC CRITERIA
TR TSY 000782 : ISSUE 2 SONET DIGITAL SWITCH TRUNK INTERFACE CRITERIA (A MODULE OF LSSGR, FR-64)
IEEE 729-1983 IEEE Standard Glossary of Software Engineering Terminology
TA TSY 000038 : ISSUE 3 DIGITAL FIBER OPTIC SYSTEMS REQUIREMENTS AND OBJECTIVES
TIA 587 : 92(R1996) FIBER OPTIC GRAPHIC SYMBOLS
TR NWT 001217 : ISSUE 1 GENERIC REQUIREMENTS FOR SEPARABLE ELECTRICAL CONNECTORS USED IN TELECOMMUNICATIONS HARDWARE
TR TSY 000282 : ISSUE 1 SOFTWARE RELIABILITY AND QUALITY ACCEPTANCE CRITERIA (SRQAC)(A MODULE OF RQGR, FR-NWT-000796)
TR TSY 000454 : ISSUE 1 SUPPLIER DOCUMENTATION FOR NETWORK ELEMENTS
SR NWT 001907 : ISSUE 1 TRANSPORT RELIABILITY ANALYSIS GENERIC GUIDELINES (TRAGG)
TIA 526-16 : 2007 JITTER TRANSFER FUNCTION MEASUREMENT
SR TSY 001681 : ISSUE 1 BELLCORE FIBER IN THE LOOP (FITL) ARCHITECTURE SUMMARY REPORT
TR NWT 000233 : ISSUE 3 WIDEBAND AND BROADBAND DIGITAL CROSS-CONNECT SYSTEMS GENERIC CRITERIA
TIA 526-10 : 1991(R2014) OFSTP-10 - MEASUREMENT OF DISPERSION POWER PENALTY IN DIGITAL SINGLE-MODE SYSTEMS
TR NWT 000909 : ISSUE 1 BULL 2 GENERIC REQUIREMENTS AND OBJECTIVES FOR FIBER IN THE LOOP SYSTEMS
TR TSY 000474 : BULLETIN 1 OTGR: NETWORK MAINTENANCE: NETWORK ELEMENT SECTION 4 (A MODULE OF OTGR, FR-NWT-000439)
TR TSY 000929 : ISSUE 1 REV 1 RELIABILITY AND QUALITY MEASUREMENTS FOR TELECOMMUNICATIONS SYSTEMS (RQMS)(A MODULE OF RQGR, FR-NWT-000796)
TIA 526-2 : A2015 EFFECTIVE TRANSMITTER OUTPUT POWER COUPLED INTO SINGLE-MODE FIBER OPTIC CABLE
TR NWT 000472 : ISSUE 3 OTGR: CONFIGURATION MANAGEMENT: MEMORY ADMINISTRATION, SECTION 2 (A MODULE OF OTGR, FR NWT 000439)
TR NWT 000496 : ISSUE 3 SONET ADD DROP MULTIPLEX EQUIPMENT (SONET ADM) GENERIC CRITERIA
SR TSY 001557 : ISSUE 1 METHODS FOR SETTING PROPOSED QUALITY STANDARDS
TA NWT 001221 : ISSUE 2 GENERIC REQUIREMENTS FOR PASSIVE FIBER OPTIC COMPONENT RELIABILITY ASSURANCE PRACTICES
TIA 526-18 : 2007 SYSTEMATIC JITTER GENERATION MEASUREMENT
TR NWT 000063 : ISSUE 5 NETWORK EQUIPMENT-BUILDING SYSTEM (NEBS) GENERIC EQUIPMENT REQUIREMENTS (A MODULE OF LSSGR, FR-NWT-000064 AND OF TSGR, FR-NWT-000440)
TR TSY 000385 : ISSUE 1 REV 1 AUTOMATIC MESSAGE ACCOUNTING TELEPROCESSING SYSTEM (AMATPS) GENERIC REQUIREMENTS
TIA 455-127 : A2006(R2014) FOTP-127-A - BASIC SPECTRAL CHARACTERIZATION OF LASER DIODES
TR NWT 001037 : ISSUE 1 STATISTICAL PROCESS CONTROL PROGRAM GENERIC REQUIREMENTS
TR NWT 000284 : ISSUE 2 RELIABILITY AND QUALITY SWITCHING SYSTEMS GENERIC REQUIREMENTS (RQSSGR)
TR NWT 000499 : ISSUE 5 TRANSPORT SYSTEMS GENERIC REQUIREMENTS (TSGR): COMMON REQUIREMENTS (A MODULE OF TSGR, FR-NWT-000440)
IEEE 1149.1-2013 REDLINE IEEE Standard for Test Access Port and Boundary-Scan Architecture
TIA 526-17 : 2007 OUTPUT JITTER MEASUREMENT
TR NWT 000253 : ISSUE 2 SYNCHRONOUS OPTICAL NETWORK (SONET) TRANSPORT SYSTEMS: COMMON GENERIC CRITERIA (A MODULE OF TSGR, FR NWT 000440)
TR TSY 000016 : ISSUE 1 BELLCORE-STD-100 AND BELLCORE-STD-200 INSPECTION RESOURCE ALLOCATION PLANS
TA NWT 001230 : ISSUE 3 SONET BIDIRECTIONAL LINE SWITCHED RING EQUIPMENT GENERIC CRITERIA
TIA 526-4 : A1997 OPTICAL EYE PATTERN MEASUREMENT PROCEDURE
TR NWT 000840 : ISSUE 1 SUPPLIER SUPPORT GENERIC REQUIREMENTS (SSGR)

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