Lucent Technologies 8400 Series Installation And User Manual page 17

Use these
2 tab slots
for the high
position
NOTE: The location of the slots may differ slightly from those in this figure.
FIGURE 5: Adjusting the 8405 and 8410 Desktop Stand
Tabs
Slots
16
Use these
2 tab slots
for the low
position
Press
inward
Tab
Slots