The SSA-T4068-0252 has forty-eight 10/100/1000BASE-T RJ45 ports and four 10GBASE-X SFP+ ports, as shown in SSA-T4068-0252 Front Panel.
1 = 10/100/1000BASE-T RJ45 ports | 5 = Micro-USB debug port |
2 = 10GBASE-X SFP+ ports | 6 = OFFLINE/RESTART button |
3 = PoE mode button | 7 = COM port |
4 = System LEDs |
Each of the 10/100/1000BASE-T ports, which support PoE (IEEE 802.3af and 802.3at), can operate in either half-duplex or full-duplex mode which can be determined by either auto-negotiation or manual configuration. Depending on your power supply configuration, the SSA-T4068-0252 can provide PoE power for powered devices to a maximum of all 48 RJ45 ports simultaneously.
On the 10/100/1000BASE-T ports, the SSA-T4068-0252 allows a maximum of eight authenticated users per port, though you can remove this restriction through an upgrade license (S-EOS-PPC).
The SFP+ ports support a number of SFP+ pluggable transceivers. For more information about the transceivers, see http://www.extremenetworks.com/product/transceivers/.