Table of Contents
Issue 1
December 1997
10-i
10
Technical Specifications
Overview
DDM-2000 OC-12 Multiplexer
■
External Transmission Interfaces
■
Electrical Interfaces
DS3 Low-Speed (BBG11/11B 3DS3)
EC-1 Low-Speed (BBG12 3STS1E)
■
Optical Interfaces
Lightguide Jumpers
Long Reach OC-3 Interface (21G/21G-U/
21G2-U OLIU)
IS-3 Interface (21D/21D-U OLIU)
Long Reach 1310 nm OC-12 Interface (23G/23G-U OLIU)
Long Reach 1550 nm OC-12 Interface (23H/23H-U OLIU)
OC-3 Optical Interface Mixing
Universal Optical Connector Attenuators
■
SONET Overhead Bytes
■
Performance
Wander/Jitter
Signal Performance
Synchronization
Protection Switching
Transient Performance
Delay
Performance Monitoring
■
Operations Interfaces (OI)
Craft Interface Terminal (CIT)