121
3
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9.2 Status
Parameter
Description
This page allows the user to inspect the current status for all PoE ports. The section
shows all Port Power Over Ethernet Status.
Web Interface
To display Power over Ethernet Status in the web interface:
1.
Click Status.
2.
Display Power Over Ethernet Status Information.
3.
Click “Refresh”.
Figure 3-9.2: The Power Over Ethernet Status
Local Port:
This is the logical port number for this row.
PD Class:
The recognition of PD class generates from the current that PD transmits
back to the PSE during the detection between PSE and PD. The current is classified
by 802.3 at/af protocol. The PD class shown is a reference. It is not related to the
actual PD power requested.
The PD class that the switch read from PD might be inconsistent with the PD
specification. There are two reasons that result in this inconsistency.
1.
If the PD supports PoE function, the voltage and current of PD design
should follow 802.3 af or 802.3 at protocol. If PD design did not fully follow
the protocol, the current PD transmitted back to the switch cannot be
defined in the classification range that regulated in protocol (in the
following table). The switch will define the PD class itself and will be
inconsistent.
Classification Category
Classification Current
0 (Type 1)
2.5mA (±2.5mA)
1 (Type 1)
10.5mA (±2.5mA)
2 (Type 1)
18.5mA (±2.5mA)
3 (Type 1)
28mA (±3mA)
4 (Type 2)
40mA (±5mA)
