& 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 802.3z Gigabit Ethernet (fiber) ANSI/IEEE 802.3
• Auto-negotiation
• IEEE 802.3x Flow Control
Number of Ports
• DES-1210-28: 24 10/100Mbps, 2 10/100/1000BASE-T, 2 combo 10/100/1000BASE-T/SFP
• DES-1210-52: 48 10/100Mbps, 2 10/100/1000BASE-T, 2 combo 10/100/1000BASE-T/SFP
Network Cables
• UTP Cat. 5, Cat. 5e (100 m max.)
• EIA/TIA-568 100-ohm STP (100 m max.)
Full/Half Duplex
• Full/half duplex for 10/100Mbps speeds
• Full duplex for Gigabit speed
Media Interface Exchange
• Auto MDI/MDIX adjustment for all twisted-pair ports
Performance
Switching Capacity
• DES-1210-28: 12.8Gbps
• DES-1210-52: 17.6Gbps
Transmission Method
• Store-and-forward
MAC Address Table
• Up to 256 static MAC entries
• Enable/disable auto-learning of MAC addresses
Maximum 64 bytes packet forwarding rate
• DES-1210-28: 9.5 Mpps
• DES-1210-52: 3.1 Mpps
RAM Buffer
• DES-1210-28: 512KB per device
• DES-1210-52: 1MB per device
Physical & Environmental
AC Input
• 100 to 240 VAC 50/60Hz internal universal power supply
Maximum Power Consumption
• DES-1210-28: 17.6W
• DES-1210-52: 28.9W
Standby Power Consumption
• DES-1210-28: 7.6W/110V, 7.9W/240V
• DES-1210-52: 13.2W/110V, 13.3W/240V
Fan Quantity
• DES-1210-28: 0
• DES-1210-52: 0
Acoustics
• DES-1210-28: 0dBA
• DES-1210-52: 0dBA
Heat Dissipation
• DES-1210-28: 60.05 BTU/hr
• DES-1210-52: 98.61 BTU/hr
Operating Temperature
• 0? to 40? C
Storage Temperature
• -10? to 70? C
Operating Humidity
• 10% to 95% non-condensing
Storage Humidity
• 5% to 95% non-condensing
Dimensions
• DES-1210-28: 440 mm x 210 mm x 44mm
• DES-1210-52: 441 mm x 250 mm x 44 mm
• 19-inch standard rack mounting width, 1U height
Weight
• DES-1210-28: 2.6 kg
• DES-1210-52: 3.3 kg
MTBF
• DES-1210-28: 419,467hrs
• DES-1210-52: 289,012hrs