24 Port Layer 2 Ethernet Switch with Integral Router. 24 - 48 VDC Compliant w/ NEBS level 1. Combines the functionality of the NetVanta 1224ST and the NetVanta 3205. Includes 24 -10/100Base-T access ports, one Combo1000Base-T/SFP Gigabit Uplink and a single network interface module slot. Switching features include 802.1Q VLANs, 802.1p/DiffServ QoS, 802.1w Rapid STP, 802.3ad Link Aggregation, Auto MDI/MDI-X. Routing features include OSPF, RIP, BGP, Frame Relay and PPP WAN Protocols, Stateful Inspection Firewall, optional Modular Dial Backup and VPN. System level features include CLI, HTTP GUI, SSH, SSL, RADIUS. 19" Rackmount 1U housing. Supported SFP modules include 1000Base-SX (1200480E1) and 1000Base-LX (1200481E1). Can use any NetVanta 3000 Network Interface Modules (120086xLx), however NEBS compliance is maintained only when using NEBS T1 NIM Module (1200862L2#NEBS).