Installing the Bottom-Support Rails
The bottom-support rails support the weight of the switch chassis in the rack or cabinet. To maximize the
stability of the rack, you must attach these rails at the lowest possible rack unit (RU).
Statement 1006
—
Chassis Warning for Rack-Mounting and Servicing
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions
to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
Warning
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with
the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
Before You Begin
Before you can install the bottom support rails for the chassis, you must do the following:
•
Verify that a four-post rack or cabinet is installed and secured to the concrete subfloor (see
•
If any other devices are stored in rack or cabinet, verify that they are located below where you plan to
install the switch. Also, verify that lighter devices in the same rack are located above where you plan to
install this switch.
•
Verify that the bottom-support rails kit is included in the switch accessory kit (see
).
Step 1
Position one of the two adjustable bottom-support rails at the lowest possible RU in the rack or cabinet and adjust the
length of each rail so that it stretches from the outer edges of the front and rear vertical mounting rails on the rack. Be
sure there is at least 7.1 RU (12.4 in [31.6 cm]) of vertical space above the rails to install the chassis (see the following
figure).
Cisco Nexus 9504 NX-OS Mode Switch Hardware Installation Guide
15
Installing a Chassis
Installing the Bottom-Support Rails
