Cisco Nexus 7000 Series Hardware Installation And Reference Manual page 58

Attaching the Center-Mount Bottom-Support Rails
Figure 19: Positioning the Center-Mounted Bottom-Support Rails
1 For the first and heaviest Cisco Nexus 7009 chassis installed in a rack,
position two center-mount bottom-support rails at the lowest RU on the
rack.
2 For the second Cisco Nexus 7009 chassis installed in a rack, position two
center-mount bottom-support rails immediately above the first installed
switch.
Step 2
Use a Phillips screwdriver to screw in two or three (three are recommended if you have three screw holes) M6 x 19 mm
or 12-24 x 3/4 inch Phillips screws on each bracket (using a total of 6 screws for both brackets) as shown in
Attaching a Center-Mount Bottom-Support Rail to a Rack, on page
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
46
Installing a Cisco Nexus 7009 Chassis
3 Allow at least 26.25 inches (66.7 cm)
(15 RU) for each Cisco Nexus 7009
system.
47.
Figure 20: