Indicator Description
| Indicator | Description |
| PWR (Green) |
Module power indicator: On: Module is powered normally Off: Module is not powered or powered abnormally |
| RUN (Green) |
Communication indicator: On: Normal communication Off: Abnormal communication |
| D1 |
Axis 1: the indicator will light up when there is a signal at D1+/D1-, otherwise it is off |
| D2 |
Axis 2: the indicator will light up when there is a signal at D2+/D2-, otherwise it is off |