H3C Technologies H3C S7500E Series Switches - Manual (Page 105)

5-6
z When the sum of the power consumption of all powered PoE interfaces on a PSE exceeds
the maximum power of the PSE, the system considers the PSE is overloaded (The
maximum PSE power is decided by the user configuration).
z Which PoE interface power supply mode is selected depends on the specifications of PDs.
A PSE can supply power to a PD only when the selected power supply mode is supported
by both the PSE and PD.
Follow these steps to enable PoE for a PoE interface:
To do… Use the command… Remarks
Enter system view system-view —
Enter PoE interface view
interface interface-type
interface-number
—
Enable PoE for the PoE
interface
poe enable
Required
Disabled by default.
Configure PoE interface power
supply mode
poe mode signal
Optional
signal (power over signal
cables) by default.
Configure a description for the
PD connected to the PoE
interface
poe pd-description text
Optional
By default, no description for the
PD connected to the PoE
interface is available.
Detecting PDs
Enabling the PSE to Detect Nonstandard PDs
There are standard PDs and nonstandard PDs. Usually, the PSE can detect only standard PDs
and supply power to them. The PSE can detect nonstandard PDs and supply power to them
only after the PSE is enabled to detect nonstandard PDs.
Follow these steps to enable the PSE to detect nonstandard PDs:
To do… Use the command… Remarks
Enter system view system-view —