HP FlexFabric 11908-V Installation Manual page 14

NOTE:
One rack unit has three holes, the middle of which is an auxiliary installation hole, and the other two
are standard installation holes. You can distinguish them by the space between each two holes. The
space between a standard installation hole and an auxiliary installation hole is wider than that
between two adjacent standard installation holes.
Figure 3 Locating the rack position for installing slide rails
(1) Middle of the narrower metal area between holes
3. Install six cage nuts in the square holes in each rack post, as shown in
Figure 4 Installing a cage nut
4. Align the installation holes on the front end of the slide rail with the cage nuts on the front rack post,
and attach them with screws, as shown in Figure 5.
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Figure 4.