LED operations
Applicable receivers: All receivers
The LEDs indicate various operating conditions. Generally, a lit or slowly flashing LED indicates normal operation. An LED that is flashing quickly indicates a condition that may require attention, and an unlit LED indicates that no operation is occurring. The following tables define each possible LED state.
Power LED
|
Receiver mode |
Power LED |
|---|---|
|
Off |
Off |
|
On. Healthy power |
On |
|
Monitor mode 1 |
On |
|
Logging data internally |
Briefly flashes off every three seconds |
Satellite LED
|
Receiver mode |
Satellite LED |
|---|---|
|
No satellites tracked |
Off |
|
Boot up |
On |
|
Monitor mode 1 |
On |
|
Searching for satellites |
Flashes at 5 Hz |
For dual-antenna configurations
|
Receiver mode |
|
|---|---|
|
Tracking satellites on both position and vector antennas. |
Flashes at 1 Hz, then a high-frequency burst every five seconds. |
|
Tracking satellites only on the position antenna. The vector antenna is not tracking. |
Flashes at 1 Hz (the high-frequency burst does not occur). |
|
Tracking satellites only on the vector antenna. The position antenna is not tracking. |
Off, then a high-frequency burst every five seconds. |
Correction LED
|
Radio mode |
Correction LED |
|---|---|
|
No receive or transmit |
Off. |
|
Monitor mode 1 |
Flashes at 1 Hz (off and on equally). |
|
Receive |
Off, briefly blinking on when receiving corrections. This LED flashes when a correction is received. When receiving moving base corrections at 5 Hz, 10 Hz, or 20 Hz, the LED may either flash rapidly (at 5 Hz) or remain lit solid. |
|
Transmit |
On, briefly blinking off when transmitting corrections. This LED flashes off when a correction is transmitted. When corrections are received, often from MSS sources, the LED is a combination of the transmit and receive LED flashing. |
IMU LED
|
Receiver mode |
Power LED |
|---|---|
|
No INS solution |
Off |
|
Coarse leveling |
Flashes at 5 Hz |
|
Degraded solution |
Flashes at 2 Hz |
|
Aligned solution |
Flashes at 1 Hz |
1 A condition where the receiver has booted into the monitor firmware, but not loaded the application firmware. It indicates firmware corruption or misconfiguration. When this occurs, a multiple LED pattern with the power and satellite LEDs is lit solid, and the correction LED flashes at 1 Hz. To resolve monitor mode issues, cycle the power. If the problem persists, reload the firmware. If this does not fix the issue, please contact GNSSOEMsupport@trimble.com.
