When you install a Cisco Nexus 7009 chassis with center-mount brackets, you must always install the chassis
onto center-mount bottom-support rails.
Note
Do not remove the center-mount brackets when a chassis is installed on them. They are required at all times
for holding a center-mount chassis to the rack.
Caution
The prerequisites, tools, and process for installing the bottom-support rails are included in the following topics:
Prerequisites for Attaching the Bottom-Support Rails
Before you can attach the bottom-support rails, you must fully install the rack or cabinet and use bolts to
anchor the rack to the concrete subfloor. To maximize the stability of the rack, install everything as low as
possible on the rack with heavier items below lighter items. Be sure that there is 15 RU available for installing
the Cisco Nexus 7009 chassis (14 RU) and its bottom-support rack (1 RU).
Required Tools and Equipment
You need the following tools and equipment to attach the bottom-support rails:
• Number 1 Phillips-head screwdriver with torque capability.
• One of the following types of bottom-support rails:
• Front-mount bottom-support rails (shipped with the Bottom-Support Kit, which is found in the
accessory kit or ordered separately [part number N7K-C7009-BSK])
• Center-mount bottom-support rails (not shipped with the chassis unless special ordered [part number
N7K-C7009-CMK])
Table 1: Bottom-Support Kit Contents, on page 41 lists the items in the Bottom-Support Kit and Table 2:
Center-Mount Kit Contents, on page 42 lists the items in the Center-Mount Kit.
Table 1: Bottom-Support Kit Contents
QuantityPart Description
2Front-mount bottom-support rails
1Crossbar
2012-24 x 3/4 in. Phillips screws
20M6 x 19 mm Phillips screws
2M4 x 8 mm Phillips screws
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
41
Installing a Cisco Nexus 7009 Chassis
Prerequisites for Attaching the Bottom-Support Rails
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