Preface
1 Introduction
1.1 Scope of OTGR Section 12: Operations
                  Application Messages
1.2 Requirements Terminology
1.3 Requirement Statement for GR-833-CORE
1.4 Scope of this Document
1.5 Changes Incorporated into GR-833-CORE,
                  Issue 2
1.6 History of GR-833-CORE Changes
2 Types of NEs and Addressing Rules
2.1 NE Types
2.2 Addressing Rules
2.2.1 Access Parameters
2.2.2 Routing Parameter (TID)
3 Maintenance and Surveillance Categories
3.1 Maintenance and Surveillance Functional
                  Descriptions
3.1.1 Alarm Surveillance Functions
3.1.2 Performance Monitoring
3.1.3 Failure Identification Functions
3.1.4 Recovery and Control Functions
3.1.5 Maintenance Measurement (MM) Functions
3.1.6 Memory Backup (MB) Functions
4 Input Commands and Responses
4.1 Conventions and Notations
4.2 Specification Format
4.3 Format Explanation
4.3.1 Command Verb
4.3.2 Access Identifier ()
4.3.3 Correlation Tag ()
4.3.4 Parameter Blocks
4.3.5 General Block
4.3.6 Acknowledgment
4.3.7 Response Header
4.4 Input Command and Response Message Specification
5 Automatic Messages
5.1 Conventions and Notations
5.2 Specification Format
5.3 Format Explanation
5.3.1 Message Header ()
5.3.2 Alarm Code ()
5.3.3 Automatic Tag (5.3.4 Message Verb
5.3.5 Access Identifier ()
5.3.6 Parameter Blocks
5.4 Automatic Message Specification
Appendix A: Circuit/Facility/Payload Level Code
Appendix B: Error Codes
Appendix C: Condition Types
Appendix D: Maintenance State Types
Appendix E: Monitored Parameter Types and Values
Appendix F: Environmental Alarm Types
Appendix G: External Control Types
Appendix H: Transmission Format and Data Rate Setting
Appendix I: Line Insulation Test Resistance Ranges
Appendix J: Maintenance Measurements Reports
Appendix K: Supplemental Information
Appendix L: Parameter Definitions and Rules
Appendix M: Recommendations for Processing Multiple AIDs
Appendix N: Setting PM Thresholding Parameters Using
                  a GOS Concept
References
Glossary