EXFO AXS-100 Series OTDR - Manual (Page 119)

OTDR 111
14 Troubleshooting
Solving Common Problems
The table below presents common problems and their solution.
Problem Possible Cause Solution
Impossible to turn on unit.
³
You did not press
long enough.
³
Main batteries
discharged.
³
Battery compartment
door is open.
³
One of the two batteries
is missing.
³
Weather too cold.
³
Press for 2 seconds.
³
Charge batteries by
connecting the AC
adapter/charger.
³
Close battery
compartment door.
³
Insert 2 batteries and
replace battery
compartment door.
The display is almost blank
when you turn on the unit.
Brightness may need some
adjustment.
Press to adjust brightness
properly.
Batteries do not charge as
expected.
³
Temperature is too high.
³
Battery is incorrectly
connected.
³
Ensure temperature is
within specifications.
³
Ensure battery is
connected properly.
A battery status LED is
yellow.
Battery is defective. Contact EXFO or replace the
battery.
The application displays a
message indicating that a
“Non-resolved fiber end”
event has been found.
The fiber under test is too
long.
Ensure that the fiber under
test is shorter than the
maximum length the OTDR
can measure.