Installing The Chassis In A Four-Post Rack; Attaching The Bottom-Support Rails To The Rack - Cisco Nexus 9396PX Hardware Installation Manual

Installing the Chassis
1 Three customer-supplied screws (typically M6 x 10
mm screws or the appropriate screws for the rack) to
hold each side of the chassis to the two-post rack.
Step 2
Use the second person to secure the three customer-supplied rack-mount screws (typically M6 x 10 mm or other appropriate
screws for the rack) on each center-mount bracket to attach the chassis to the rack. Tighten each screw to the appropriate
torque setting for the screws (for M6 x 10 mm screws, use 40 in-lbs [4.5 N·m] of torque).

Installing the Chassis in a Four-Post Rack

Before you install the chassis, be sure that the rack is fully secured to the data center floor.
You must attach the bottom support rails to the rack and attach the mounting brackets to the chassis before
mounting the chassis in the rack.

Attaching the Bottom-Support Rails to the Rack

The switch chassis that you are installing ships with two adjustable bottom-support rails that you can attach
to a four-post rack to hold the chassis. Each of these bottom-support rails has two pieces—one that slides into
the other so that you can adjust them to fit racks with front and rear mounting posts that are spaced less than
36 inches (91 cm). On each bottom-support rail, the rail half that slides into the other rail includes a chassis
stop that fits into the module end of the chassis. Depending on direction of the chassis airflow, you need to
position the rail half with the chassis stop so that the fan and power supply modules end up in the appropriate
aisle as follows:
Cisco Nexus 9396PX NX-OS Mode Switch Hardware Installation Guide

Installing the Chassis in a Four-Post Rack

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