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

 

 

 

8

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D-Link DES-1228P 1000Mbps Copper, Ports in the front, Panel, Power over Ethernet PoE Capable Ports, PoE Specification