Starting Up The Switch - Cisco Nexus 9508 NX-OS Hardware Installation Manual

Starting Up the Switch

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Step 3 Secure the grounding lug to the chassis grounding pad with two M4 screws, see the previous figure. Tighten the screws
to 11 to 15 in-lb (1.24 to 1.69 N·m) of torque.
Step 4 Prepare the other end of the grounding wire and connect it to the facility ground.

Starting Up the Switch

Before you can turn on the switch, you must ensure the following:
• The switch has enough power supplies to output the amount of wattage that is required for all the modules
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
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Chassis grounding pad
Grounding cable, with 0.75
in. (19 mm) of insulation that
is stripped from one end,
which is inserted into the
grounding lug and crimped
in place
that are installed in the switch. Depending on the power mode that you use for the switch, consider the
following:
• For combined power mode (no power redundancy), there must be enough power supplies to power
all the modules in the chassis. No extra power supplies are needed for redundancy.
• For n+1 redundancy mode, there must be enough power supplies to power all the modules in the
chassis. And there must be one extra power supply to provide redundancy if one power supply goes
down or is replaced. The maximum number of power supplies that are needed is the number that is
used for combined power mode plus one (n+1) for redundancy.
• For n+n redundancy mode, there must be two equal sets of power supplies. Each of which can power
all the modules in the chassis and each set is connected to a separate power source. If one power
source goes down, the power supplies connected to the other power source can power the switch.
The maximum number of power supplies is the number of power supplies that are required for
combined power plus the same number of power supplies (n+n) for redundancy.
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Installing a Chassis
2 M4 screws are used to
secure the grounding lug to
the chassis