Cisco Nexus 93120TX Hardware Installation Manual page 33

Installing the Chassis
Warning
Statement 1074 Comply with Local and National Electrical Codes
To reduce risk of electric shock or fire, installation of the equipment must comply with local and national
electrical codes.
Warning Statement 1032 Lifting the Chassis
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles
on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the
weight of the unit.
Before you begin
• Make sure that the four-post rack is properly installed and secured to the concrete subfloor.
• Make sure that the bottom-support rails are installed so that the fan modules will be in the appropriate
• Make sure that two front-mount brackets are securely fastened to the sides of the chassis at the port end.
• Make sure that you have two customer-supplied rack-mount screws (M6 x 10 mm or appropriate screw
Warning
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:
• 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
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
Step 1 Slide the power supply end of the chassis onto the bottom-support rails that are installed on the rack.
Be sure that the sides of the chassis by the power supplies clips into the chassis stops on the bottom-support rails and the
front-mount brackets come in contact with the rack (see the following figure).
aisle as follows:
• Burgundy (port-side intake airflow) fan modules are positioned in a hot aisle (the chassis stop on
the bottom-support rails is positioned by the hot aisle).
• Blue colored (port-side exhaust airflow) fan modules are positioned in a cold aisle (the chassis stop
on the bottom-support rails is positioned by the cold aisle).
for the vertical mounting rails on the rack).
heaviest component at the bottom of the rack.
unit in the rack.
Cisco Nexus 93120TX NX-OS Mode Switch Hardware Installation Guide
Installing the Chassis in a Four-Post Rack
23