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24-Port Gigabit (Hi-Power) PoE+ Ethernet Smart Managed Pro Switch with 2 SFP Ports
Configure System Information User Manual95
10. From the High Power Mode menu, select the PoE mode that the port must function in:
• 802.3af. The port is powered in and limited to the IEEE 802.3af mode.
A PD that
requires IEEE 802.3at does not receive power if the port functions in IEEE 802.3af
mode.
• Legacy. The port is powered using high-inrush current, which is used
by legacy PDs
that require more than 15W to power up.
• Pre-802.3at. The port is initially powered in the IEEE 802.3af mode and, b
efore
75 msec pass, is switched to the high-power IEEE 802.3at mode. Select this mode if
the PD does not perform Layer 2 classification or if the switch performs
2-event Layer 1 classification.
• 802.3at. The port is powered in the IEEE 802.3at mode and is backward
compatible
with IEEE 802.3af. The 802.3at mode is the default mode. In this mode, if the switch
detects that the attached PD requests more power than IEEE 802.3af but is not an
IEEE 802.3at Class 4 device, the PD does not receive power from the switch.
11. From the Detection
Type menu, select how the port detects the attached PD:
• pre-ieee. The port performs legacy detection.
•
ieee auto. The port performs a 4-point resistive detection.
This is the default setting.
• auto. The port performs a 4-point resistive detection, and if required, continues with
legacy detection.
12. From the T
imer Schedule menu, select a timer schedule or select None, which is the
default selection.
For information about setting up and configuring PoE timer schedules, see
Set up PoE
timer schedules on page 125.
13. Click the Apply
button.
Your settings are saved.
The following table describes the nonconfigurable fields on the page.
Table 17. PoE Port Configuration
Field Description
High Power All ports supports high-power mode.
Max Power The maximum power in milliwatts that can be provided by the port.
Class The class defines the range of power that a powered device (PD) is drawing from
the switch.
The class definitions are as follows:
•
0:
0.44–12.95W
•
1: 0.44–3.83W
• 2: 0.44–6.48W
• 3: 0.44–12.95W
• 4: 0.44–25.5W
Output Voltage The voltage that is delivered to the PD in volts.
Output Current The current that is delivered to the PD in mA.
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