Cisco GainMaker Reverse Segmentable Node - 1GHz with 40 52 MHz Split 문제 해결 가이드
HFC Plant Troubleshooting Guide
Overview
Introduction
Some of the faults that can develop in an HFC plant require careful analysis to
correctly identify and resolve. Fault isolation may require visits not only to the
customer residence, but also to one or more upstream locations in the network.
Intermittent problems, with fault symptoms that come and go at random, can be
especially difficult to pinpoint.
correctly identify and resolve. Fault isolation may require visits not only to the
customer residence, but also to one or more upstream locations in the network.
Intermittent problems, with fault symptoms that come and go at random, can be
especially difficult to pinpoint.
In these cases, it is very important to follow effective troubleshooting practice so
that you narrow down the true cause of the problem, as this will help avoid
customer callbacks and repeat truck rolls. When the solution involves returning
equipment for service, it is also important to document your findings.
that you narrow down the true cause of the problem, as this will help avoid
customer callbacks and repeat truck rolls. When the solution involves returning
equipment for service, it is also important to document your findings.
Purpose
This guide provides basic instructions for troubleshooting a HFC plant and
documenting your findings for amplifier and node devices used in a HFC cable
plant when there is a suspected intermittent operation.
documenting your findings for amplifier and node devices used in a HFC cable
plant when there is a suspected intermittent operation.
Audience
The audience for this document are system operators and technicians working in
hub or node environments.
hub or node environments.
Qualified Personnel
Only appropriately qualified and skilled service personnel should attempt to
install, operate, maintain, and service this product.
install, operate, maintain, and service this product.
WARNING:
Allow only qualified and skilled personnel to install, operate, maintain, and
service this product. Otherwise, personal injury or equipment damage may
occur.
service this product. Otherwise, personal injury or equipment damage may
occur.
Document Version
This is the first version of this document.