3.
USB Backboard Use
3.1.
LED Indication
3.1.1.
Normal operation
Three LED indicators are present on the USB backboard, and are visible through the
back of the yellow plastic case.
Table 4 - LED indicators of the USB backboard
3.1.2.
Error messages and troubleshooting
Table 5 - USB backboard LEDs troubleshooting
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Terabee 2021
Terabee, 90 Rue Henri Fabre
01630, St Genis-Pouilly, France (next to CERN)
9/19
LED designator
Description
PWR (ORANGE)
The Power LED is ON whenever the sensor is powered
RED
Flashes briefly on startup to indicate proper initialization;
then switches off
GREEN
Blinks 8 times at power up
GREEN LED blinks every 5 seconds when the sensor is streaming
data
LED
designator
Sequence
Signification
Corrective actions
RED
Continuous
blinking
Sensor has detected a fault
and has stopped functioning
Check that the sensor is
properly connected to the
backboard, then restart
the sensor
RED /
GREEN
Both LEDs
blinking
continuously
Sensor has detected a fault in
sensor initialization process
Check USB output for
details of the error
Verify that the sensor is
properly connected and
re-power the unit
