The following table displays the LEDs blink rate descriptions:
| LED label | LED colour | Normal state | State | Description |
|---|---|---|---|---|
| ERR | Red | Off steady | Constant rapid blinks | A communication error is present between the FM-02 module and the base board. |
| On steady | Firmware upgrade in process. Ensure that there is no power loss during this period. | |||
| Off steady | No errors | |||
| STS | Green | 1 Hz blinks |
1 Hz blinks |
Normal operation |
| Off steady | A controller fault is present | |||
| TXRX | Yellow | 1 Hz to 5 Hz blinks | 1 Hz to 5 Hz blinks | Normal data communication |
|
Off steady |
No data transmission |