Camera Takes Power From PoE Or DC Input?

Can you provide the model number?  Many Hanwha cameras have low voltage input in addition to PoE.  Depending on the model, it can support 24v AC and/or 12v DC.

The priority of which power source is used first depends on the models.  However, you certainly CAN plug in both PoE & low voltage, and have it as a failover.  If one power source goes out, the camera may have to reboot on the other power source, so it camera could be out for a minute or so.

The camera model number is QNO-6070RP.

The problem we are facing in the night, camera getting disconnected around 8:00PM and morning around 7:30am Camera start to work.

The distance of the camera cable is around 85 to 90M approximately. So we thought the problem may be from POE due to Camera IR enabled. 

So we decided to give seperated 12V DC input but the camera cable is connected in POE switch. So now we need to know the camera  will get power from DC or POE switch.

What happens when you pull the DC power when it’s runing?

What happens when you pull the POE power when it’s runing?

Which one makes it reboot?

That model camera will take power from PoE if both power sources are supplied at the same time.  If only one power source was activated initially, then it will use that for power.

If you have 12v DC power supplied, you could turn off PoE on that port, or use an uplink port to force the 12v supply to function.