Detecting Pds; Enabling The Pse To Detect Nonstandard Pds - HP 5500 EI Series Configuration Manual

The PSE supplies power over category 3/5 twisted pair cable for a PoE interface in the following modes:
Over signal wires—The PSE uses data pairs (pins 1, 2 and 3, 6) to supply DC power to PDs.
•
Over spare wires—The PSE uses spare pairs (pins 4, 5 and 7, 8) to supply DC power to PDs.
•
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 as overloaded. The maximum PSE power is user
configurable.
A PSE can supply power to a PD only when the selected power supply mode is supported by both the PSE
and PD. If the PSE and PD support different power supply modes (for example, the PSE does not support
power over spare wires, while the PD supports power over spare wires), you have to change the order
of the lines in the twisted pair cable to supply power to the PD.
The switch's PoE interfaces can supply power only over signal wires.
To enable PoE for a PoE interface:
Step
1. Enter system view.
2. Enter PoE interface view.
3. Enable PoE for the PoE
interface.
4. Configure a description for
the PD connected to the PoE
interface.

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 if you enable the PSE
to detect nonstandard PDs.
To enable the PSE to detect nonstandard PDs:
Step
1. Enter system view.
2. Enable the PSE to detect
nonstandard PDs.
Command
system-view
interface interface-type
interface-number
poe enable
poe pd-description text
Command
system-view
poe legacy enable pse pse-id
168
Remarks
N/A
N/A
By default, this function is disabled.
Optional.
By default, no description for the
PD connected to the PoE interface
is available.
Remarks
N/A
By default, the PSE can detect
only standard PDs.