To supply power to Gige camera, you have two options which are PoE or using 6 pin I/O cable.  


Option 1 : Use PoE frame grabber
Normally, PC does not have PoE port . You need to have a PoE frame grabber to power GigE camera.  I will suggest to use advantech PCiE 1672/ 1674 GigE frame grabber to power up your camera.
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Option 2: 6 pins connector
You can power up your GigE camera using 6-Pin connector with 12V power supply.

You can connect grey wire to positive of power supply and yellow wire connect to negative of power supply. 

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 After powered up your camera, you can go to pylon IP configuration to check whether the camera is connected.