H3C S5120-EI Series, Operation Manual

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A PD is a device accepting power from the PSE. There are standard PDs and nonstandard PDs. A
standard PD refers to the one that complies with IEEE 802.3af. The PD that is being powered by the
PSE can be connected to other power supply units for redundancy backup.
Protocol Specification
The protocol specification related to PoE is IEEE 802.3af.
PoE Configuration Task List
Complete these tasks to configure PoE:
Task Remarks
Configuring the PoE Interface Required
Configuring PoE Power Management Optional
Configuring the PoE Monitoring Function Optional
Upgrading PSE Processing Software Online Optional
Configuring a PD Disconnection Detection Mode Optional
Enabling the PSE to Detect Nonstandard PDs Optional
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When the PoE power or PSE fails, you cannot configure PoE.
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Turning off of the PoE power during the startup of the device might result in the failure to restore the
PoE Profile.
Configuring the PoE Interface
You can configure a PoE interface in either of the following two ways:
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Adopting the command line.
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Configuring a PoE configuration file and applying the file to the specified PoE interface(s).
Usually, you can adopt the command line to configure a single PoE interface, and adopt a PoE
configuration file to configure multiple PoE interfaces at the same time.
You can adopt either mode to configure, modify, or delete a PoE configuration parameter under the
same PoE interface.
The PSE supplies power for a PoE interface in the following two modes:
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Signal cables modes: PSE uses the twisted pairs (1, 2, 3, and 6) of category-3/5 cables, which are
used for data transmission, to power the PD simultaneously.