1 Introduction
1.1 Relationship to other Bellcore Technical
               Documents
1.2 Purpose of and Changes to the Document
1.3 Scope of Document
1.4 Overview of Surveillance-Based Maintenance
1.5 Organization of Document
1.6 Requirements Terminology
2 Criteria Common to Switching and Transport NEs
2.1 Trouble Detection
2.2 Trouble Notification
2.2.1 Types of Trouble Notifications
2.2.2 General Message Criteria for Trouble
               Notifications
2.2.3 Alarmed Trouble Notification Severity
2.2.4 CO Alarm Subsystem
2.2.5 Alarm Indication Signal
2.2.6 Synchronization
2.3 Service Recovery
2.3.1 Manual Service Recovery
2.4 Trouble Verification
2.5 Trouble Isolation
2.5.1 Manual Maintenance Actions
2.6 Repair
2.7 Maintenance Person - NE Interface
2.7.1 Centralization of Maintenance Functions
2.7.2 Common Physical Control / Status Interface
               Criteria
2.7.3 Maintenance Documentation
3 Criteria for Switching System NEs
3.1 Trouble Detection
3.1.1 Trouble Detection Tests
3.1.2 Other System Strategies for Trouble Detection
3.1.3 Trouble Detection Inhibiting
3.2 Trouble Notification
3.2.1 General Message Criteria for Trouble Notifications
3.2.2 Alarmed Trouble Notification Severity
3.2.3 CO Alarm Subsystem
3.3 Service Recovery
3.3.1 Automatic Service Recovery
3.3.2 Manual Service Recovery
3.3.3 Hardware Redundancy
3.4 Trouble Verification
3.4.1 Periodic Automatic Verification
3.4.2 Demand Verification Capabilities
3.5 Trouble Isolation
3.5.1 Trouble Isolation Procedure
3.5.2 Fuse Trouble Isolation
3.5.3 Diagnostic Raw Data Report
3.5.4 Error Analysis
3.6 Repair
3.6.1 OOS State Criteria
3.6.2 Assurance of OOS before Repair
3.6.3 Power Removal before Repair
3.6.4 Physical Repair
3.6.5 Restoration of Equipment to Active or Standby State
3.6.6 Mean Time to Repair
3.7 Maintenance Person - NE Interface for Switching
               NEs
3.7.1 Switching System Centralization of Maintenance
               Functions
3.7.2 Switching System Physical Control / Status
               Interface Criteria
3.7.3 Switching System Maintenance Messages Interface
3.7.4 Changes and Verifications to Switching System
               Software
3.7.5 Voice Communications
3.7.6 Extended Maintenance Capabilities (Beltline)
3.7.7 Physical Design for Maintenance
4 CS NE Generic Requirements
4.1 Trouble Detection
4.2 Trouble Notification
4.2.1 Output Message Categories
4.3 Service Recovery
4.4 Trouble Verification
4.5 Trouble Isolation
4.6 Repair
4.6.1 Software Repair
4.7 CS Maintenance-Person - NE Interface
5 PS NE Generic Requirements
5.1 Trouble Detection
5.2 Trouble Notification
5.3 Service Recovery
5.3.1 Automatic Treatment of Faults
5.3.2 Automatic Escalating Levels of PS Initializations
5.4 Trouble Verification
5.5 Trouble Isolation
5.6 Repair
5.6.1 Software Repair
5.7 PS Maintenance-Person - NE Interface
5.7.1 PS Centralization of Maintenance Functions
5.7.2 PS Physical Control / Status Interface Criteria
5.7.3 Maintenance USI Device Criteria
5.7.4 Remote I/O Message Capability
6 CCS Generic Requirements for Switching NEs
6.1 Trouble Detection
6.1.1 Trouble Detection Speed and Impact on Service
6.1.2 Trouble Detection Strategy Order
6.2 Trouble Notification
6.2.1 Alarm Classification
6.2.2 Hourly Status Message Report
6.3 Service Recovery
6.3.1 Automatic Service Recovery
6.3.2 Hardware Redundancy
6.4 Trouble Verification
6.5 Trouble Isolation
6.6 Repair
6.7 CCS Maintenance Person - NE Interface
6.7.1 CCS Centralization of Maintenance Functions
6.7.2 CCS Physical Control / Status Interface Criteria
7 ISDN Switch Generic Requirements
7.1 Trouble Detection
7.1.1 Physical, Data Link, and Network Layer
               Surveillance
7.1.2 Intraswitch Path Error Analysis and Diagnosis
7.2 Trouble Notification
7.2.1 Service-Affecting Resources
7.3 Trouble Verification, Isolation, and Repair
               Verification
7.3.1 Call Trace
7.3.2 Testing
7.3.3 Embedded Operations Channels
8 Criteria for Transport NEs
8.1 Trouble Detection
8.2 Trouble Notification
8.2.1 Multipling of Trouble Notifications
8.2.2 Alarmed Trouble Notification Severity
8.2.3 Telemetry Trouble Notifications
8.2.4 Line Equipment Requirements
8.2.5 Path Equipment Requirements
8.3 Service Recovery
8.3.1 Trouble Notifications for Protection Switches
8.3.2 Failure of Protection Switching Equipment
8.3.3 Inhibition of Protection Switching
8.3.4 Completion of Protection Switching
8.4 Trouble Verification
8.5 Trouble Isolation
8.6 Repair
8.6.1 Local Output
8.6.2 Maintaining Service During Repair
References
Glossary
LIST OF FIGURES
Figure 1-1 Where Trouble Indications Appear
LIST OF TABLES
Table 2-1 Visible CO Alarm Color Assignments
Table 3-1 Test Frequency and Significant Outage Criteria
Table 3-2 Mean Time to Repair
Table 7-1 Errored Seconds Threshold