EXFO FTB-500 (Window XP) User Manual
Page 281
Troubleshooting
FTB-500
271
LED Indicator Color Codes
LED
Color and Status
Message
Battery (external
power not
connected)
Not lit
Yellow
Yellow,
blinking
Red
Above LOW charge level
LOW charge level
Module and platform could be using more
power than what is available from the
batteries at any time. Connect AC power
as soon as possible.
Battery error
Laser
Red, blinking
One or more laser sources are on.
Alarm
Varied
Each application using the Alarm LED
provides its alarm level to the platform
when needed (Red/Yellow/Green/OFF).
If more than one application uses the
alarm LED, the LED is displayed using the
color of the most severe alarm with red as
the most severe, followed by yellow and
finally green.
If more than one application uses the
alarm LED, the LED is blinking.
Remote Control
Green
Unit is controlled remotely.
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