
Troubleshooting
Fiber Guardian 289
LED Indicators Description
Communication Green The LAN is up (on the rear Ethernet port).
Green,
blinking
The LAN is down, but the unit has automatically
switched to 3G.
Yellow
The LAN is down and the 3G network is
down, or there is a problem with the
configuration of the 3G settings (ex.: wrong
APN).
The unit is not equipped with the 3G option.
Measurement
in progress
Green An OTDR acquisition is underway.
Off No acquisition is underway.
Measurement
status
--- Not supported; reserved for future use by EXFO.
LED Status Meaning and Possible Solution
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