Lucent Technologies DDM-2000 OC-3 - Page 7

Issue 3 June 2001 vii
Contents
■ DDM-2000 OC-3 Shelf Capacity 3-8
■ Shelf Configurations 3-9
■ DDM-2000 Fan Shelf 3-25
4Power 4-1
■ Overview 4-1
■ Introduction 4-1
■ Power Description 4-2
Circuit Packs 4-3
LEDs 4-5
Power Minor Alarm 4-5
Power Distribution 4-6
5 Transmission and Synchronization Interfaces 5-1
■ Overview 5-1
■ Transmission Interfaces 5-2
■ Ring Interfaces 5-16
OC-3/OC-12 Ring (0x1) 5-16
DS3DataServicesonanOC-3Ring 5-19
OC-3/OC-1 Ring (0x1) 5-20
OC-1 Ring Function Unit Pass-Through 5-23
OC-1/OC-1 Function Unit Hairpin Ring 5-24
■ Synchronization Interfaces 5-28
Timing Modes 5-28
Free-Running 5-28
DS1 Output Modes: MULT and SYNC OUT 5-29
Synchronization Messaging 5-34
Dual Homing DRI Synchronization Configurations 5-50
OC-3 and OC-1 External/Line Timing 5-54
Network Timing Distribution 5-56