Overview
Preparing for power requirements of the switch.
The switch includes two power supplies (1-to-1 redundancy with current sharing) in one of these combinations,
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two 1400-W AC power supplies, or
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two 2000-W LVDC power supplies.
For 1+1 redundancy, you must use two power sources and connect each power supply to a separate power source.
The power supplies are rated to output up to 1400 W (AC power supplies), or up to 2000 W (DC power supplies), but the switch requires less than those amounts of power from the power supply. To operate the switch, you must provision enough power from the power source to cover the requirements of both the switch and a power supply. Typically, this switch and a power supply require 405 W of power input from the power source, but you must provision as much as 800 W power input from the power source to cover peak demand.
Some of the power supply modules have rating capabilities that exceed the switch requirements. When calculating your power requirements, use the switch requirements to determine the amount of power that is required for the power supplies.
To minimize the possibility of circuit failure, verify that each power-source circuit that is used by the switch is dedicated to the switch.