For connecting an USB adapter according to the intended purpose when you are connecting the unit to a network.
Rear Terminal
TOP
[DEVICE] USB Mini Terminal
[AV] AV Output Terminal
[HD/SD SDI] SDI Output Terminal (BNC)
[HDMI] HDMI Output Terminal
[HOST] USB Host Terminal 
[REMOTE] Remote Terminal
[DC] DC Input Terminal
Input terminal for DC 12 V power supply. For connecting the supplied AC adapter.
