The device has 10 LED indicators on the antenna side. On antenna side are power (green) and activity (yellow) indicator. The behaviour of activity LED is according to the table.
| LED | Function | Behaviour |
|---|---|---|
| POWER | Normal working condition | permanent ON |
| ACT | Normal working condition | blinking every 1 second |
| LTE | LTE/GSM connection | blinking if LTE/GSM active |
| Serial | RX and TX data indication of RS485 | blinking on data transfer |
| Inputs | Input 1 and 2 high level indication | ON if input high |
| Outputs | Out 1-3 ON | ON on output ON |