Is it correct that the power output of the 8-pin voltage monitoring connector on the backplane is only output when the chassis is powered on? It is said that on the 8-pin connector, the chassis power can be controlled by connecting or disconnecting pins 1 and 3 or 8. What should be the specifications of the relay when controlling the power through the relay? Can I use a relay with a voltage condition of 28V and an allowable current of 5A?