D-Link DGS-1210-28P 28-Ports

Specifications: Port Standards & Functions• Ieee 802.3 10Base-T Ethernet (Twisted-Pair Copper)• Ieee 802.3U 100Base-Tx Fast Ethernet (Twisted-Pair Copper)• Ieee 802.3Ab 1000Base-T Gigabit Ethernet (Twisted-Pair Copper)• Ieee 802.3X Flow Control• Ieee 802.3Af Compliance (Dgs-1210-28P Only)• Auto-Negotiation Number Of Ports• Dgs-1210-20: • 16 10/100/1000Base-T Plus 4 Gigabit Sfp• Dgs-1210-28: • 24 10/100/1000Base-T Plus 4 Gigabit Sfp• Dgs-1210-28P: • 24 10/100/1000Base-T Poe Plus 4 Gigabit Sfp• Dgs-1210-52: • 48 10/100/1000Base-T Plus 4 Gigabit Sfp Network Cables• Utp Cat.5, Cat.5E (100M Max)• Eia/Tia-568 100-Ohm Stp (100M Max) Full/Half Duplex• Full/Half Duplex For 10/100Mbps Speeds• Full Duplex For Gigabit Speed Media Interface Exchange• Auto Mdi/Mdi-X Adjustment For All Twisted-Pair Ports Performance Switching Capacity• 40 Gbps (Dgs-1210-20)• 56 Gbps (Dgs-1210-28)• 56 Gbps (Dgs-1210-28P)• 104 Gbps (Dgs-1210-52) Transmission Method• Store-And-Forward Mac Address Table• 16,000 Entries Per Device Mac Address Update• Up To 256 Static Mac Entries• Enable/Disable Auto-Learning Of Mac Addresses Maximum 64 Bytes Packet Forwarding Rate• 29.8 Mpps (Dgs-1210-20)• 41.7 Mpps (Dgs-1210-28)• 41.7 Mpps (Dgs-1210-28P)• 77.4 Mpps (Dgs-1210-52 Packet Buffer Memory• 1 Mb Per Device Power Over Ethernet Poe Standard• Ieee 802.3Af & Ieee 802.3At (Dgs-1210-28P) Poe Capable Ports• Dgs-1210-28P: • Ports 1 To 4: Up To 30W • Ports 5 To 24: Up To 15.4W Poe Power Budget• Dgs-1210-28P: • Max. 185W Physical And Environmental Ac Input• 100 To 240 Vac 50/60Hz Internal Universal Power Supply Maximum Power Consumption• 14.06W (Dgs-1210-20)• 16.81W (Dgs-1210-28)• 238.4W (Poe On) / 27.4W (Poe Off) (Dgs-1210-28P)• 43.5W (Dgs-1210-52 Standby Power Consumption• 6.7W/110V, 7.2W/240V (Dgs-1210-20)• 5.9W/110V, 6.42W/240V (Dgs-1210-28)• 16W/110V, 14W/240V (Dgs-1210-28P)• 20.68W/110V, 22.05W/240V (Dgs-1210-52 Fan Quantity• 0 (Dgs-1210-20)• 0 (Dgs-1210-28)• Three Smart Fans (Dgs-1210-28P)• Two Smart Fans (Dgs-1210-52 Acoustics• 0 Db(A) (Dgs-1210-20)• 0 Db(A) (Dgs-1210-28)• 52.2 Db(A) (Dgs-1210-28P)• 47.1 Db(A) (Dgs-1210-52 Heat Dissipation• 47.97 Btu/Hr. (Dgs-1210-20)• 57.36 Btu/Hr. (Dgs-1210-28)• 813.42 Btu/Hr. (Dgs-1210-28P)• 148.42 Btu/Hr. (Dgs-1210-52) Operating Temperature• 41° To 122°F (-5° To 50°C) Storage Temperature• -4° To 158°F (-20° To 70°C) Operating Humidity• 0% To 95% Non-Condensing Storage Humidity• 0% To 95% Non-Condensing Dimensions• Dgs-1210-20: • 17.32 X 5.51 X 1.73 In. (440 X 140 X 44 Mm) • 19-Inch Standard Rack Mounting Width, 1U Height• Dgs-1210-28: • 17.32 X 8.27 X 1.73 In. (440 X 210 X 44 Mm) • 19-Inch Standard Rack Mounting Width, 1U Height• Dgs-1210-28P: • 17.32 X 9.84 X 1.73 In. (440 X 250 X 44 Mm) • 19-Inch Standard Rack Mounting Width, 1U Height• Dgs-1210-52: • 17.32 X 9.84 X 1.73 In. (440 X 250 X 44 Mm) • 19-Inch Standard Rack Mounting Width, 1U Height Weight• 4.85 Lbs (2.2 Kg) (Dgs-1210-20)• 6.39 Lbs (2.9 Kg) (Dgs-1210-28)• 8.15 Lbs (3.7 Kg) (Dgs-1210-28P)• 9.04 Lbs (4.1 Kg) (Dgs-1210-52) Diagnostic Leds• Power (Per Device)• Poe Max (Per Device) (Dgs-1210-28P Only)• Link/Activity/Speed (Per 10/100/1000Mbps Port)• Link/Activity (Per Sfp Port)• Fan (Per Device) (Dgs-1210-28P And Dgs-1210-52 Only)• Button To Switch Led Display Mode Between Poe And Link/Activity (Dgs-1210-28P Only) Mtbf• 253,460 Hours (Dgs-1210-20)• 236,739 Hours (Dgs-1210-28)• 224,530 Hours (Dgs-1210-28P)• 201,517 Hours (Dgs-1210-52) Certifications• Fcc Class A• Ce Class A• Ices-003• Vcci Class A• C-Tick• Bsmi Safety• Cul• Ce Lvd Power Plug • Uk Plug