ARTHUR HOLM AH15D3 HDGA User Manual page 10

Controls & Input connectors
Termination
AHnet
USB
OSD MONITOR CONTROL
In order to access to the OSD monitor control menu, use the IR remote
control supplied with the monitor
POWER
MENU
UP
DOWN
LEFT
RIGHT
OK
10
Activate (ON) the termination, ONLY on the last unit of the
RS422 bus
RJ45 CAT5 connector for addressable RS422 control. There
is a loop through connector to use as signal RS422 output.
Up to 30 monitors can be connected on the same RS422 bus
USB connectors for mouse, keyboard, touch screen and
webcam. These connectors are active depending on the
monitor model
Switch ON/OFF the monitor
Activates the OSD menu on screen
Cursor control up on the OSD menu
Cursor control down on the OSD menu
Cursor control left on the OSD menu
Cursor control right on the OSD menu
Selects the function on the OSD menu.
When the OSD menu is not active on
screen, selects the input source