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26 SPAN-IGM User Manual Rev 2
Chapter 2 SPAN Installation
2.5 SPAN-IGM LEDs
The LEDs on the SPAN-IGM provide basic receiver status information.
Table 1: SPAN-IGM LEDs
LED Off On Flashing Slow (1Hz) Flashing Fast (>1Hz)
Power
(Red)
No power to unit Unit is powered on
UNKNOWN or
UNSUPPORTED IMU
Programming error
GNSS
(Green)
Waiting for GPS time
Time Status FINE
or
FINESTEERING
Time status COARSE,
COARSESTEERING
or FREEWHEELING
N/A
INS
(Green)
Waiting for GPS time Connected to IMU N/A
Bootup or loading
firmware