Configuring Power Supply Management for Non-standard PDs
This section describes how to configure power supply management for non-standard PDs.
Context
After a PD connects to a PoE interface on a PSE, if the PSE cannot detect the required resistance, the interface is in the detection state. In this case, the PD is a non-standard PD. The FW can supply power to non-standard PDs. However, compatibility detection and high inrush current tolerance must be enabled.
Configuring Compatibility with Non-standard PDs
After compatibility detection is enabled, the device can detect PDs that do not comply with 802.3af or 802.3at and provide power for these non-standard PDs.
- Access the system view.
system-view
- Access the view of an interface.
interface interface-type interface-number
- Enable non-standard PD compatibility detection on the interface.
poe legacy enable
By default, non-standard PD compatibility detection is disabled.
Configuring Forcible Power-On for Non-standard PDs
If the system power is sufficient and the poe legacy enable command is run to enable an interface to detect non-standard PDs but the PSE still cannot detect a PD, you can try to forcibly power on the PD.
- Access the system view.
system-view
- Access the view of an interface.
interface interface-type interface-number
- Forcibly power on a non-standard PD.
poe force-power enable
By default, forcible PoE power supply is disabled.
The forcible power-on of a non-standard PD is not affected by the priority of the connected interface. After forcible power-on is configured, the PSE powers on the PD.
Enabling High Inrush Current Tolerance
When a non-standard PD is powered on, high inrush current is generated, which may trigger overcurrent protection and result in the power-off of the PD. To use non-standard PDs, you need to enable high inrush current tolerance.
- Access the system view.
system-view
- Enable high inrush current tolerance.
poe high-inrush enable
By default, high inrush current tolerance is disabled.