D-Link DES-1228P user manual 1000Mbps Copper, Ports in the front, Panel, PoE Specification

4.DEM-331R (TX-1310/RX-1550nm), up to 40km, Single-Mode

-Compliant to following standards:

1.IEEE 802.3z compliance

2.IEEE 802.3u compliance

21000Base-T ports

1000Mbps Copper	1000Base-T ports compliant to following
	standards:
ports in the front
	1.	IEEE 802.3 compliance
panel
	2.	IEEE 802.3u compliance
	3.	IEEE 802.3ab compliance
	4. Support Full-Duplex operations
Power over Ethernet
PoE Capable Ports	Port 1-24
	1. Supplies power to PD device up to 15.4W
	per port, meeting IEEE802.3af standards and
	more sufficiently is able to provide power to PD
	devices
	2. Power Budget: 170W max
PoE Specification	3. Auto discovery feature, automatically
	recognize the connection of PD device and
	immediately sends power to it
	4. Auto disable port if the port current is over
	350mA while other ports remain active
	5. Active circuit protection, automatically
	disables the port if there is a short while other
	ports remain active

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