Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) 故障排查指南
Timing and Synchronization on Cisco ONS 15454
Document ID: 64755
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Background Information
Timing Architecture
Timing Distribution
Timing Circuitry
Reference Qualification and Failure
Phase Locked Loop
Card Level Synchronization Support
Optical Cards
DS1/DS3 Cards
DS3XM Cards
Timing Modes
External Timing
Line Timing
Mixed Timing
Clock Modes
Normal Mode
Fast−start Mode
Holdover Mode
Free−running Mode
Guidelines to Plan Synchronization
Features of Good Timing Design
Related Information
Prerequisites
Requirements
Components Used
Conventions
Background Information
Timing Architecture
Timing Distribution
Timing Circuitry
Reference Qualification and Failure
Phase Locked Loop
Card Level Synchronization Support
Optical Cards
DS1/DS3 Cards
DS3XM Cards
Timing Modes
External Timing
Line Timing
Mixed Timing
Clock Modes
Normal Mode
Fast−start Mode
Holdover Mode
Free−running Mode
Guidelines to Plan Synchronization
Features of Good Timing Design
Related Information
Introduction
This document provides guidelines to plan the timing and synchronization on Cisco ONS 15454.
Prerequisites
Requirements
Cisco recommends that you have knowledge of these topics:
Cisco ONS 15454
•
Components Used
The information in this document is based on these software and hardware versions:
Cisco ONS 15454
•