LED indicators
Status (left LED)
Status indicator is present on all gateways.
There are three colors. Usuall meaning is described in below table:
| STATUS LED | Color | Description |
|---|---|---|
| GREEN | Connected to cloud system | |
| YELLOW | Not connected to cloud system | |
| RED | Used only in recovery mode |
Normal operation
During normal operation following STATUS LED states can be observed:
Connected to cloud platform
| STATUS LED | State | Frequency |
|---|---|---|
|
On (1s) / Off (1s) | 0.5 Hz |
|
On (0.2s) / Off (0.2s) | 2.5 Hz |
Not connected to cloud platform
| STATUS LED | State | Frequency |
|---|---|---|
|
On (1s) / Off (1s) | 0.5 Hz |
|
On (0.2s) / Off (0.2s) | 2.5 Hz |
Recovery mode
When device is in recovery mode OFF state is replaced with RED:
Connected to cloud platform
| STATUS LED | State | Frequency |
|---|---|---|
|
On (1s) / Off (1s) | 0.5 Hz |
|
On (0.2s) / Off (0.2s) | 2.5 Hz |
Not connected to cloud platform
| STATUS LED | State | Frequency |
|---|---|---|
|
On (1s) / Off (1s) | 0.5 Hz |
|
On (0.2s) / Off (0.2s) | 2.5 Hz |
Blinking frequency
Within 10 seconds of start/restart of the gateway STATUS LED blinks faster (2.5 Hz).
If fast blinking period occurs multiple times during short observation window it may indicate an issue. Most common causes are:
- Insufficient power supply current.
- Power supply voltage drops below 5 VDC (PRO-series gateways).
- Reboot commands sent from server or diagnostic tool.
Critical failure
No blinking indicates a critical failure.
| STATUS LED | State | Description |
|---|---|---|
| Off | No power, gateway off. | |
| On | Critial failure, gateway not started |
Modem (right LED)
Modem indicator is present on gateways equipped with cellular modem.
Similarly to Status indicator there are three colors.
| MODEM LED | Color | Description |
|---|---|---|
| GREEN | Connected to network, PDP context active | |
| YELLOW | PDP context inactive, check APN configuration | |
| RED | Usually indicates SIM issue, eg. no SIM detected |
Blinking frequency
During modem initialization the LED may be turned On/Off.
During normal operation Modem indicator does not blink.
Status and Modem indicators
Common combined states:
| STATUS LED | MODEM LED | Description |
|---|---|---|
|
Connected to cloud platform | |
|
Connected to network, not yet connected to cloud platform | |
|
PDP context inactive, check APN configuration | |
|
Usually indicates SIM issue, eg. no SIM detected |