Installing The Switch Into A 2-Post Rack - Cisco MDS 9148T Hardware Installation Manual

Installing the Switch into a 2-Post Rack

3. Holding the chassis level, insert two screws (12-24 or 10-32, depending on the rack type) into each of the two brackets
(using a total of four screws), and into the cage nuts or threaded holes in the rack or cabinet posts.
4. Tighten the 10-32 screws to 20 in-lb (2.26 N·m), or tighten the 12-24 screws to 30 in-lb (3.39 N·m).
Step 6 If you have attached a grounding wire to the chassis grounding pad, connect the other end of the wire to the facility
ground.
Installing the Switch into a 2-Post Rack
Before you begin
• If your switch must meet NEBS standards, ensure that it is configured to be compliant. For more
• Determine how you want to set up your switch:
Step 1 Install two rack–mount brackets onto the switch as follows:
1. Position a rack-mount bracket so that four of its screw holes are aligned to the screw holes on the side of the chassis.
You can align any four of the holes in the rack-mount bracket to four of the six 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
2. 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 9148T 32-Gbps 48-Port Fibre Channel Switch Hardware Installation Guide
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information, see the NEBS Compliance.
• Determine which end of the chassis is to be located in the cold aisle as follows:
1. 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.
2. 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.
• 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 Racks, on page
Installing the Cisco MDS 9148T Switch
15.