NortelAL4500A12-E6 Ethernet Routing Switch 4550T-PWR with 48 10/100 802.3af PoE ports plus 2 combo 10/100/1000 SFP ports, HiStack ports and RPS connector Product description Avaya Ethernet Routing Switch 4550T-PWR - switch - 48 ports - managed Device type Switch - 48 connections - managed - stackable Art 1U Subtype Fast Ethernet Ports 48 x 10/100 (PoE) + 2 x combo gigabit SFP Power Over Ethernet (PoE) PoE Size of the MAC address table 8000 entries Routing protocol IGMPv2, IGMP Remote administration protocol SNMP 1, SNMP 2, RMON, Telnet, SNMP 3, HTTP, HTTPS Features Flow control, auto-negotiation, BOOTP support, ARP support, trunking, VLAN support, MAC address filter Product certifications IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ab (LLDP) Power supply AC 120/230 V (50/60 Hz) Dimensions (width x depth x height) 43.8 cm x 36.8 cm x 4.4 cm