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2.2 Definition for the Outputs on the Rear Panel
DC 12V
This is used for supplying 12V DC input.
HDMI OUT
Not available yet.
RS-232/RS-422
This is the D-sub 9 pin connector for controlling by the RS-
232/RS-422. (Not available yet).
.
Ethernet
This Ethernet port is used for DVIP connection.
USB
These USB ports are used for firmware upgrade and tablet
charging. The USB port on the bottom-left side can supply
5V/0.5A for tablet charging.