
20
1.11.1 Power
Management
These settings will help you match the power requirements of your system to the
power output of the Midspan.
Power Management can be used in the following modes:
None:Indicates power management will not be performed by the
firmware. User needs to power up the ports manually.
Static /w Priority:Power is budgeted statically based on selected violation
type, located under the “Multiple Port Configuration” or “Port
Configuration” tabs.
oIf violation type is “Class Based”, then the maximum permissible
power for that class is budgeted.
oIf violation type is “User Defined”, then the configured user-
defined limit is budgeted.
oIf violation type is “None”, then the budgeted power is based on
port mode.
For Normal Mode the power budgeted is 16.2W:
For “High Power Mode”(802.3at-Class 4), the power budgeted is based on
ILIM/ICUT selected value.
oFor ILIM/ICUT –504/465 mA, the power budgeted is 22.5W.
oFor ILIM/ICUT –563/545 mA, the power budgeted is 26.5W.
oFor ILIM/ICUT –850/625 mA, the power budgeted is 31.6W.
oFor ILIM/ICUT –850/725 mA, the power budgeted is 37.0W.
These limits will help to provide the necessary power for your system, and
prevents run away shorting and potential damage from occurring.
Static /wo Priority: Same as above, except the port priority of the port is
ignored.
Static /wo Priority: Power is budgeted statically based on selected
violation type.
oIf violation type is “Class Based”, then the maximum permissible
power for that class is budgeted.
oIf violation type is “User Defined”, then the configured user-
defined limit is budgeted.
oIf violation type is “None”, then the budgeted power is based on
port mode.
For Normal Mode the power budgeted is 16.2W:
For “High Power Mode”, the power budgeted is based on ILIM/ICUT
selected value.
oFor ILIM/ICUT –504/465 mA, the power budgeted is 22.5W.
oFor ILIM/ICUT –563/545 mA, the power budgeted is 26.5W.
oFor ILIM/ICUT –850/625 mA, the power budgeted is 31.6W.
oFor ILIM/ICUT –850/725 mA, the power budgeted is 37.0W.
Dynamic /w Priority: The power is budgeted based on the load and priority
of the port.
Dynamic /wo Priority: The power is budgeted based on the load.