Issue 1
December 1997
xi
Contents
3
Shelf Descriptions and Configurations
■
Overview
■
DDM-2000 OC-12 Multiplexer Shelf
■
DDM-2000 OC-12 Multiplexer Shelf Configurations
OC-12 STS-1 Path Switched Ring Shelf
OC-12 STS-1/VT1.5 Path Switched Ring
Configuration
OC-3/IS-3 Dual Ring Interworking (DRI)
Configuration
OC-12 Ring Configuration (DS1/EC-1 Low-Speed
Interfaces)
OC-12 Optical Extension Shelf
Linear (1+1) Extension From OC-12 Ring
Configuration
OC-12 Dual Homing Shelf
OC-12 STS-3c Broadcast Shelf
OC-12 OC-3c Transport Shelf
■
DDM-2000 Fan Shelf
4
Power
■
Overview
■
Introduction
■
Power Description
Circuit Packs
OLIU Circuit Packs
TSI, TGS/TG3, 3DS3, and 3STS1E Circuit
Packs
Control Circuit Packs
LEDs
Power Minor Alarm
Power Distribution