Operation Manual

Parts of the display and their functions 11

Input/output terminals (RP750 / RP750K)

HDMI4(4K2K)

LAN

No. Name Description

USB

Connects USB devices such as USB keyboards, USB mice, and USB

flash drives.

HDMI IN

High-definition multimedia interface signal input. Connect to PC

with an HDMI output, a set-top-box, or other video devices

capable of realizing touch function.

HDMI 4 realizes 4K2K resolution (RP750K only).

VGA OUT Connects to display devices with a VGA input.

AUDIO IN External computer audio input.

VGA IN External computer image input.

TOUCH

External computer touch signal input. Default touch function is

available under internal computer, when connecting external

computer, besides connecting external computer VGA and audio

signals, external computer's USB port needs to be connected to

the equipment. Under the condition that driver is installed,

external computer can be touch controlled through the equipment

(touch function is effective in PC, VGA and HDMI channel by

default)

AV IN Composite video and audio input.

COAX OUT Coaxial output.

RS232 Serial interface, used for mutual transfer of data between devices.

EARPHONE Connected to device with headphone input function.

LAN

LAN interface, connecting RJ45 terminals. (This network port is

only used for the closed Android OS on this product.)

AC IN AC power input, connecting AC power supply.

POWER SWITCH Power switch, to open and shut down AC power supply.

Refer to Turning the display on or off on page 23 for more information on AC IN and POWER

SWITCH.