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Preparing the Site
Shock and Vibration Requirements
The switch has been shock- and vibration-tested for operating ranges, handling, and earthquake standards.
Grounding Requirements
The switch is sensitive to variations in voltage that is 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 chassis is properly installed in a grounded rack, the switch is grounded because it has a metal-to-metal
(no paint, stain, dirt, or anything else on it) 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.
For U.S. installations, we recommend 6-AWG wire. Connect your grounding cable to the chassis with a
grounding lug (provided in the switch accessory kit) and to the facility ground.
Note
Note
Planning for Power Requirements
The switch includes two power supplies (1-to-1 redundancy with current sharing) in one of the following
combinations:
• Two 1400-W AC power supplies
• Two 2000-W DC power supplies
• One 2000-W HVDC power supplies
Note
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.
An electrical conducting path shall exist between the product chassis and the metal surface of the enclosure
or rack in which it is mounted or to a grounding conductor. Electrical continuity shall be provided by using
thread-forming type mounting screws that remove any paint or non-conductive coatings and establish a
metal-to-metal contact. Any paint or other non-conductive coatings shall be removed on the surfaces between
the mounting hardware and the enclosure or rack. The surfaces shall be cleaned and an antioxidant applied
before installation.
For 1+1 redundancy, you must use two power sources and connect each power supply to a separate power
source.
Cisco Nexus 9364C-H1 NX-OS Mode Switch Hardware Installation Guide
Shock and Vibration Requirements
11
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