Configuring A Guaranteed Power Plan; Monitoring Power Usage - 3Com 3C17205-US - Corp SUPERSTACK 3 SWITCH 4400 24PORT Implementation Manual

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HAPTER OWER
Configuring a
Guaranteed Power
Plan
Monitoring Power
Usage
M C
ANAGEMENT AND ONTROL
supplied with power if all the existing power requirements can also
be met. See
Once power has been guaranteed to a port it will be reserved for
that port even if the device or port is not currently in use.
When you implement a guaranteed power plan, power is reserved for
devices you choose. The Switch 4400 PWR has a set of power profiles for
3Com Power over Ethernet products.
Configuring a port for a 3Com Power over Ethernet device is as simple as
selecting the profile for that device. If you add a device to your Switch
that does not have a profile, for example a future 3Com device or a
device from another supplier, you can also guarantee power by specifying
the maximum power required by the device. Refer to the documentation
supplied with your Power over Ethernet device.
To ensure that the Switch is able to supply power to each device for
which it has guaranteed power, the Switch reserves the maximum power
that each guaranteed device can draw, regardless of whether the device
is in use. Typically, this results in the Switch reserving more power for
guaranteed devices than is actually supplied to these devices.
If the Switch is not able to supply power to all your devices, you may
want to consider prioritizing your devices rather than guaranteeing
power. See "Implementing a Power Plan"
To configure a guaranteed power plan use the Physical Interface >
Power > Configure operation in the Web interface. See the Management
Interface Reference Guide, supplied on the CD with your Switch for
details of the Physical Interface > Power > Configure operation.
The Switch is able to allocate and monitor power on a port by port basis
and is able to monitor power usage for the whole unit. As you increase
the number of Power over Ethernet devices you use, managing the way
you use your power becomes increasingly important.

"Configuring a Guaranteed Power Plan"

below.
on page 115.