Issue 1 December 1997 xxxiii
Figures
8 Administration and Provisioning
8-1 OC-12 Ring Configuration Cross-Connections
DS3 to DS3 With STS-1 Cross-Connections 8-23
8-2 Drop and Continue Nodes 8-27
8-3 Example Dual Ring Configuration Cross-
Connections 8-29
8-4 Example Single Homed OC-3/OC-12 Ring (0x1)
Configuration Cross-Connections 8-33
8-5 Example Dual Homed OC-3/OC-12 Ring (0x1)
Cross-Connections 8-35
8-6 Example Dual Homed OC-3/OC-12 Ring (0x1)
Cross-Connections with Intermediate Node 8-37
9 Maintenance Description
9-1 Three-Tiered Operations 9-3
9-2 Single-Ended Operations 9-5
9-3 Example of Main Signal as a Result of
Unprotected Incoming OC-12 Failure 9-11
9-4 Maintenance Signaling — Path Switched Ring
Applications 9-12
9-5 Unidirectional Line Protection Switching 9-19
9-6 Two-Fiber Unidirectional Ring 9-21
9-7 Path Protection Switching 9-23
9-8 DRI Path Protection Switching 9-25
9-9 DS1/DS3 Line and Path and DS3 Path
Performance Monitoring 9-28
10 Technical Specifications
10-1 Optical System Interfaces (Points S and R) 10-7
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