Nortel Baystack Ethernet Routing Switch 5520-48T-PWR
Power over Ethernet Switch with 48 10/100/1000 BASE-T RJ-45 ports.
Both models feature four built-in SFP GBIC ports for uplink, and may be
stacked with each other or themselves, in stacks of 8 units, to achieve
a maximum of 384 10/100/1000 ports for high-density desktop switching
& PoE capability. These models will also be able to stack with the
Ethernet Routing Switch 5510 and future Ethernet Routing Switch 5000
series models.