MODEL- DGS-1248T          VENDOR- D-LINK
   
FEATURES- Web Smart 48-port 10/100/1000 + 4 combo SFP Switch
       Web Smart (48) 10/100/1000BASE-T Port Switch with (4) Combo SPF 
        Expansion Slots.
       The Web Smart DGS-1248T blends plug & play simplicity with 
        exceptional performance and feature sets. With forty-eight 
        10/100/1000BASE-T ports and four combo SFP expansion slots, the 
        DGS-1248T is designed to help provide a simple and economical 
        migration path from 10BASE-T or 100BASE-TX to 1000BASE-T Gigabit. 
        With 96Gbps in aggregated bandwidth, the DGS-1248T is the ideal 
        solution as a line aggregator for server farms or bandwidth-starved 
        workgroups requiring basic network management functions for todays 
        diverse multimedia requirements.
* Management
   Managing the DGS-1248T is easy. Using its built in browser-based 
   management interface, configuring the DGS-1248T takes only minutes. With 
   full color graphic pictures, diagrams and easy to understand navigation 
   menus, configuring the DGS-1248T with the features you require is as 
   easy as surfing the net. The DGS-1248T supports many of todays most 
   sought after features like: priority queing, 802.1Q VLANs, port 
   trunking, port status monitoring, port mirroring, and many others.
* Auto-Discovery
   The guess work is over. Every DGS-1248T also comes with auto-discovery 
   software that automatically detects and displays up to 254 D-Link Web 
   Smart switches running on your network.
* Automatic Port configuration
   The DGS-1248T is truly plug-and-play. All RJ-45 ports support auto 
   MDI/MDIX, so there is no longer a need to use cross-over cables or an 
   up-link port. The auto-MDI/MDIX feature will automatically detect 
   whether the switch is connected to another switch or an end-station 
   device and configure the port accordingly. If the DGS-1248T detects a 
   switch connected to one of its ports, it will automatically configure 
   that port to act as an uplink. If the DGS-1248T detects a computer or 
   end station device, the port auto-configures to a standard port. The 
   confusion over cross-over cabling is a thing of the past.
* Investment Protection
   The DGS-1248T helps to protect customers  existing and future network 
   infrastructure investments by providing optional gigabit fiber uplinks. 
   With 4 SFP ports, the DGS-1248T can be connected to a distant network or 
   backbone up to 80Km away (SFP transceivers sold separately). The 
   DGS-1248T is the best choice for future proofing your network and is a 
   worthy investment.
   
  -- SPECIFICATIONs -------------------------------------
CONNECTORS   - (48) 10BaseT/100BaseTX/1000BaseT/RJ45 ports (MDI/MDI-X)
               ( 4) Combo SFP Expansion slots
PERFORMANCE  - MAC Address Table Size: 8,000
               Aggregated Bandwidth  : 96 Gbps
               Transmission Method   : Store-and-Forward
               Packet Buffer Memory  : 1632 Kbytes per system
INDICATORS   - LEDs Per Unit: Power, CPU 
                "   Per Gigabit Copper Port: Activity/Link & Speed 
                "   Per Gigabit Fiber Port: Activity/Link 
NETWORK PROTOCOLS & STANDARDS-
               IEEE 802.3 Ethernet, 802.3u Fast Ethernet, 802.3x Flow 
                Control & 802.3ab Gigabit Ethernet, 802.3z Gigabit.
SMART ADVANCED FEATURES-
               802.1Q VLAN (up to 64 groups) 
               2 priority queues 
               Automatically discover up to 254 Web Smart switches on the 
                 network.
               Firmware upgradeable 
               Port trunking (Up to 10 trunks) 
               Statistics (packet count, size, error counters) 
               Port configuration for speed, disable, flow control
               Traps can be set up to monitor boot up, illegal login, 
                 transmit/receive error System/Port naming and IP setup.
               Port Mirroring 
               Configuration backup and restore 
               Trap settings for system events, device boot-up, illegal 
                 login, port events, link events.
ACCESSORIES  - DEM310GT    Mini-GBIC/SFP 1000BASE-SX (up to 550m)
               DEM311GT    Mini-GBIC/SFP 1000BASE-LX (up to 10Km)
               DEM314GT    Mini-GBIC/SFP 1000BASE-LH (up to 50Km)
               DEM315GT    Mini-GBIC/SFP 1000BASE-ZX (up to 80Km)
APPROVALS    - CE Mark A, FCC Class A, cUL
POWER- 100~240VAC, 50/60 Hz Internal Universal Power; Consumption 70 watts
SIZE - 17.32"w x 1.73"h x 12.2"d                WT.- 19.45 lbs.
       19" rack-mount width, 1.0U height