When you are installing a server, use the following guidelines:
• Plan your site configuration and prepare the site before installing the server.
• Ensure that there is adequate space around the server to allow for accessing the server and for adequate
airflow. The airflow in this server is from front to back.
• Ensure that the air-conditioning meets the thermal requirements listed in the Environmental Specifications,
on page 93.
• Ensure that the cabinet or rack meets the requirements listed in the Rack Requirements, on page 9.
• Ensure that the site power meets the power requirements listed in the Power Specifications, on page 94.
If available, you can use an uninterruptible power supply (UPS) to protect against power failures.
Grounding Requirements
The switch is sensitive to variations in voltage supplied by the power sources. Overvoltage, undervoltage,
and transients (or spikes) can erase data from memory or cause components to fail. To protect against these
types of problems, ensure that there is an earth-ground connection for the switch. You can connect the grounding
pad on the switch either directly to the earth-ground connection or to a fully bonded and grounded rack.
When you properly install the chassis in a grounded rack, the switch is grounded because it has a metal-to-metal
connection to the rack. Alternatively, you can ground the chassis by using a customer-supplied grounding
cable that meets your local and national installation requirements (we recommend 6-AWG wire for U.S.
installations) connected to the chassis with a grounding lug (provided in the switch accessory kit) and to the
facility ground.
You automatically ground AC power supplies when you connect them to AC power sources. For DC power
supplies, you must connect a grounding wire when wiring the power supply to the DC power source.
Note
Rack Requirements
The rack must be of the following type:
• A standard 19-in. (48.3-cm) wide, four-post EIA rack, with mounting posts that conform to English
universal hole spacing, per section 1 of ANSI/EIA-310-D-1992.
• The rack-post holes can be square 0.38-inch (9.6 mm), round 0.28-inch (7.1 mm), #12-24 UNC, or #10-32
UNC when you use the Cisco-supplied slide rails.
• The minimum vertical rack space per server must be one rack unit (RU), equal to 1.75 in. (44.45 mm).
Supported Cisco Slide Rail Kits
The server supports the following rail kit options:
Rack Installation Tools Required
The slide rails sold by Cisco Systems for this server do not require tools for installation.
Cisco APIC M3/L3 Server Installation and Service Guide
9
Installing the Server
Grounding Requirements
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