Cisco GainMaker Optoelectronic Node 1GHz with 55 70 MHz Split インストールガイド
Introduction
The GainMaker Node is configured with modules that support
different functions. This modular design approach provides the
following benefits:
The housing design has the flexibility to accept a variety of
modules.
The modules contain few user serviceable parts. This provides ease
of troubleshooting and minimal downtime during repairs.
This chapter describes the steps you may take to troubleshoot the
node.
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Chapter 4
Troubleshooting
In This Chapter
Equipment.............................................................................................. 66
No AC Power ........................................................................................ 67
No DC Power ........................................................................................ 69
Low RF Output ..................................................................................... 71
Boot Color Table ................................................................................... 72
No Forward RF Signal .......................................................................... 73
Low or Degraded Forward RF Signal ................................................ 74
Troubleshooting Carrier-to-Noise Problems .................................... 75
Miscellaneous Problems ...................................................................... 76
Cleaning Optical Connectors .............................................................. 78
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65