Data Sheet
planning. For PoE switches, cooling requirements are smaller than the actual power consumption
as a significant portion of PoE loads are dissipated in the endpoints.
Non-PoE Power Consumption
100 Percent 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 from 30 to 75 percent. Typically such power draws are only
seen when encountering a 100 percent traffic load made up entirely of 64-byte packets on the
switch and the uplinks.
5 Percent 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 from 30 to 75 percent. The numbers below indicate a 5
percent traffic load on the switch and its uplinks.
PoE Power Consumption
100 Percent 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 from 30 to 75 percent. Typically such power draws are only
seen when encountering a 100 percent traffic load made up entirely of 64-byte packets with no
PoE loads on the switch and uplinks.
Measured 5 Percent 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 from 30 to 75 percent. The numbers below indicate a 5 percent
traffic load on the switch and its uplinks
100 Percent 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 from 30 to
75 percent. Typically this power draw is realized when a switch is running 100 percent traffic load
of 64 byte sized packets on all its ports and uplinks and also drawing 100 percent PoE load .
5 Percent Throughput Switch Power Consumption (with 50 percent 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 from 30 to
75 percent. The numbers below indicate a 5 percent traffic load and 50 percent PoE load on the
switch and its uplinks.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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