Can the service board of NE5000ENE80E be powered alone?
The service board of NE5000ENE80E cannot be powered independently. It is required to power on the MPU and then the service board. Each LPU has the C-bus, and the service boards are powered 5V by the C-bus at MPU. So only the C-bus can supply power, and then LPU can get power from the standby LPU. If the MPU is not in place, other LPU cannot get 5V power.