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Data Sheet
Note:
All power consumption numbers were measured under controlled laboratory conditions
and are provided as an estimate.
The wattage rating on the power supply does not represent actual power draw. It indicates the
maximum power draw possible by the power supply. This rating can be used for facility capacity
planning. For PoE switches, cooling requirements are smaller than the actual power consumption
as a significant portion of PoE loads are dissipated in the end points
Non PoE Power Consumption
100% Throughput Switch Power consumption
The numbers indicate the power consumed by a typical switch under normal conditions. Normal
conditions signify a temperature of 25 Degrees Celsius, atmospheric pressure in the range of 860
to 1060 mbar and relative Humidity between 30 to 75%. Typically such power draws are only seen
when encountering a 100% traffic load made up entirely of 64 byte packets on the switch and the
uplinks.
5% Throughput Switch Power consumption
The numbers indicate the power consumed by a typical switch under normal conditions. Normal
conditions signify a temperature of 25 Degrees Celsius, atmospheric pressure in the range of 860
to 1060 mbar and relative Humidity between 30 to 75%. The numbers below indicate a 5% traffic
load on the switch and its uplinks.
PoE Power Consumption
100% Throughput Switch Power consumption (no PoE loads)
The numbers indicate the power consumed by a typical switch under normal conditions. Normal
conditions signify a temperature of 25 Degrees Celsius, atmospheric pressure in the range of 860
to 1060 mbar and relative Humidity between 30 to 75%. Typically such power draws are only seen
when encountering a 100% traffic load made up entirely of 64 byte packets with no PoE loads on
the switch and uplinks.
Measured 5% Throughput Switch Power consumption (no PoE loads)
The numbers indicate the power consumed by a typical switch under normal conditions. Normal
conditions signify a temperature of 25 Degrees Celsius, atmospheric pressure in the range of 860
to 1060 mbar and relative Humidity between 30 to 75%. The numbers below indicate a 5% traffic
load on the switch and its uplinks
100% Throughput Switch Power consumption (with maximum PoE loads)
The numbers indicate the power consumed by a typical system (the switch and the corresponding
PoE loads) under normal conditions. Normal conditions signify a temperature of 25 Degrees
Celsius, atmospheric pressure in the range of 860 to 1060 mbar and relative Humidity between 30
to 75%. Typically this power draw is realized when a switch is running 100% traffic load of 64 byte
sized packets on all its ports and uplinks and also drawing 100% PoE load .
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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