Cisco MDS 9148V-K9 Hardware Installation Manual page 30

Installing the Switch in a 4-Post Rack
• The rack is installed and secured to its location.
• If your switch must meet NEBS standards, ensure that it is configured to be compliant.
• Determine how you want to set up your switch:
Step 1 Install two rack-mount brackets to the switch as follows:
a. Position a rack-mount bracket so that three of its screw holes are aligned to the screw holes on the side of the chassis.
You can align any three of the holes in the rack-mount bracket to three of the screw holes on the side of the chassis.
The holes that you use depend on the requirements of your rack and the amount of clearance. For more information
on clearance, see the
b. You can install the rack-mount bracket either at the front or rear of the chassis. The choice is determined by which
end of the chassis will be inserted into the rack first. If the rear end of the chassis is to be inserted first, then mount
the brackets on the front of the chassis, and vice versa.
Cisco MDS 9148V-K9 Switch Hardware Installation Guide
24
• Rack-mount brackets (2)
• Rack-mount guides (2)
• Slider rails (2)
• M4 x 0.7 x 8-mm Phillips countersink screws (12)
1. Determine which end of the chassis is to be located in the cold aisle as follows:
a. If the switch has port-side intake modules (fan modules and power supply units with red coloring),
position the switch so that its ports are in the cold aisle.
b. If the switch has port-side exhaust modules (fan modules and power supply units with blue
coloring), position the switch so that its fan modules and power supply units are in the cold aisle.
2. Determine which way the chassis should slide in and out of the rack—port-side entry first or rear-side
entry first. You might consider whether the front or back of the rack provides better clearance for
maneuvering the chassis in and out during installation and servicing. The end that needs to enter the
rack first requires the guides and the other end the brackets.
General Requirements for Cabinets and
Installing the Cisco MDS 9148V-K9 Switch
Racks.