Port Setup - ZyXEL Communications 43222612 User Manual

Table 245 Port > PoE Setup > PoE Setup (continued)
LABEL
Wide Range
Detection
LLDP Power Via
MDI
Apply
Cancel

60.4 Port Setup

Use this screen to configure Switch port settings. Click Port > Port Setup in the navigation panel to display
the configuration screen.
Figure 355 Port > Port Setup
Chapter 60 Port
DESCRIPTION
Select this to let the Switch have a wider detection range for the PD.
The Switch detects whether a connected device is a powered device or not before supplying
power to the port. For the PD detection, the Switch applies a fixed voltage to the device and
then receives returned current. If the returned current is within the IEEE 802.3af/at standard range,
the device will be considered as a valid PD by the Switch.
However, in real cases, environmental interferences might easily cause the returned current to be
out of the standard range.
Select this to have the Switch negotiate PoE power with the PD connected to the port by
transmitting LLDP Power Via MDI TLV frames. This helps the Switch allocate less power to the PD on
this port. The connected PD must be able to request PoE power through LLDP.
The Power Via MDI TLV allows PoE devices to advertise and discover the MDI power support
capabilities of the sending port on the remote device.
• Port Class
• MDI Supported
• MDI Enabled
• Pair Controllable
• PSE Power Pairs
• Power Class
Click Apply to save your changes to the Switch's run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Click Cancel to begin configuring this screen afresh.
GS2220 Series User's Guide
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