IBM 3270 Hardware User's Manual page 51

Or this:
5271
System
Unit
5151 Monochrome Display
5271 Keyboard
You should try to arrange the units so that the
top of the display is at
eye~level.
If the units are
too heavy, have someone else help you move
them.
2~34
Book 1
~
3270 PC Work Station User's Guide