Tripp-Lite DMVWSC4570XUL El Manual Del Propietario página 8

Assembly
3
Install the Pop-Out Adapter Brackets
Hex Key
Ball Joint
Push the pop-out arm until the ball joint snaps
into place.
Note: Make sure the arrow is pointing up.
D
For VESA 600x400 mounting patterns, the "D" and "C" positions are flipped.
C
Top of the
display.
Remove the hex
key from the
adapter brackets.
VESA 600x400
C
8
D
Top of the
display.