Table of Contents
Issue 1
December 1997
5-i
5
Transmission and
Synchronization Interfaces
Overview
Transmission Interfaces
■
OC-12 STS-1 Path Switched Ring
■
Dual Ring Interworking (DRI)
■
OC-3/OC-12 Ring (0x1) Low-Speed Interfaces
■
Linear (1+1) Optical Extension Between OC-12 and OC-3
Synchronization Interfaces
■
Free-Running
■
Line Timing
■
DS1 External
Holdover
■
DS1 Output Modes: MULT and SYNC OUT
DS1 Output Mode, MULT
DS1 Output Mode, SYNC OUT
■
Synchronization Messaging
Applications
DS1 Timing Output Integrity
Automatic Synchronization Reconfiguration
Synchronization Provisioning Integrity
Feature Details and Options
Examples
■
Network Timing Distribution
Interoffice Timing Distribution
Access Network Timing Distribution