Issue 3 June 2000
xxxv
Figures
8-15 Virtual Slot Concept (Octet Mode) 8-67
9 Maintenance Description
9-1 DDM-2000 FiberReach Wideband Shelf
Single-Ended Operations Philosophy 9-2
9-2 Three-Tiered Operations 9-3
9-3 Example of Maintenance Signals as a Result of
Unprotected Incoming OC-1 Failure for VT1.5
Ring Applications 9-11
9-4 Maintenance Signaling — VT Ring Application 9-12
9-5 Two-Fiber Unidirectional Ring 9-15
9-6 Path Protection Switching 9-16
9-7 Single-Homed Ring Interworking Application 9-18
9-8 Dual-Homed Ring Interworking Application 9-20
9-9 DS1/DS3 Line and Path and DS3 Path
Performance Monitoring (PM) 9-24
9-10 DDM-2000 Multiplexer DS1 Path Performance
Monitoring 9-26
10 Technical Specifications
10-1 T1EXT Span Powering 10-9
10-2 Optical System Interfaces (Points S and R) 10-23
10-3 Universal Optical Connector 10-43
11 Commands and Reports
11-1 DDM-2000 FiberReach Shelf with
VT1.5 Signals11-51
11-2 DS-1 Loopback 11-90
11-3 DS-3 Loopback 11-95
11-95
11-90
10-43
10-23
10-9
9-26
9-24
9-20
9-18
9-16
9-15
9-12
9-11
9-3
9-2
8-67
11-90