TC Communications TC1920, Руководство пользователя

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TC1920 Rev 1.3 User Manual 5-1
Chapter 5 Troubleshooting
5.1 Introduction
Troubleshooting involves a systematic approach to isolate an observed
problem and then determine the action needed to fix the problem. This
process usually reveals several possible causes and solutions. Select the
most probable cause and test the solutions.
This chapter has several sections to aid the technician in troubleshooting
problems or errors.
• The first step is to use the LED front and back panel indicators for
power, serial connections and operation alarms.
• The second step is using TC Communication's web management
application which shows alarms conditions and error message pop ups.
• The third step is to inspect is mechanical problems that and may
involve cables or equipment the TC1920 is connected to such as the
fax machines, phones, Ethernet hubs, etc.
5.2 Strategy for Troubleshooting
A good troubleshooting strategy involves a systematic approach that starts
with:
• isolating the problem
• determining the likely cause
• implementing a solution to the problem
• verify the unit configurations are correct
This manual does not cover every possible problem. The intent is to guide
you to possible solutions when experiencing a particular problem.
Troubleshooting strategy:
a. Determine the most likely category of the failure.
b. Read the manual for suggestions on possible causes and solutions.
c. Test the most likely causes and solutions to eliminate the obvious
(example: swap out bad cables, use a DVM to test input voltages).
NOTE
If the problem is too complex for the instructions contained in
this chapter, call TC communications customer service for
assistance.