| Technical Specifications |
| DES-1250G | | � | (48) Ports 10/100Mbps plus (2) 1000BASE-T/SFP combo ports |
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| MAC Address Table | |
| Switch Fabric | |
| Transmission Method | |
| Diagnostic LEDs | | � | Per Unit: Power | | � | Per Port: Activity/Link & Speed | | � | One reset button |
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| Packet Buffer Memory | |
| Max Power Consumption | |
| Interface Options |
| RJ-45 | | � | 10BASE-T, 100BASE-TX, & 1000BASE-T |
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| LC | | � | On optional SFP transceiver |
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| Network Protocols and Standards |
| IEEE | | � | 802.3 Ethernet, 802.3u, IEEE802.3ab, IEEE802.3z Gigabit Ethernet (fiber), 802.3x Flow Control |
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| Smart Features |
| VLAN | | � | 802.1Q, maximum 64 groups |
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| QoS | | � | priority queues, maximum 2 |
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| Port Trunks | | � | Up to 4 10/100 port to form one trunk | | � | Up to 2 gigabit copper ports to form one trunk |
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| Port Mirroring | |
| Management | | � | Web-based configuration, graphic user interface | | � | Configuration reset through software or reset button | | � | Windows-based utility | | � | Trap settings for system events, device bootup, illegal login, port events, link events |
|
| Electrical & Emissions Summary |
| Emissions | |
| Power Supply | | � | 100-240VAC, 50/60 Hz Internal Universal Power |
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| Safety Agency Certifications and Environmental |
| Safety | |
| Temperature | | � | Operating: 0� to 40� C (32� - 104� F) |
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| Storage | | � | -10� to 70� C (14� - 158� F) |
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| Humidity | | � | Operating: 5% to 90% RH, Non-Condensing |
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| Physical Specifications |
| Dimensions (W x D x H) | | � | (W x D x H): 17.3 x 1.7 x 12.2 in, 19-inch rackmount width, 1RU |
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| Weight | |
| Warranty and Support Information |
| Warranty | | � | 5-Year Warranty (excluding power supplies and fans). Power supplies and fans carry a limited 1-Year warranty |
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| Support | | � | Free 24/7 Technical Support |
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| Ordering Information |
| Part Number | |
| DES-1250G | | � | Web Smart 48-Port 10/100BASE-TX with 2 combo copper gigabit/SFP ports |
|
| DEM-310GT | | � | 1000BASE-LX 3.3V SFP, up to 10Km (single mode) |
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| DEM-311GT | | � | 1000BASE-SX 3.3V SFP, up to 220m/550m (multimode) |
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| DEM-312GT | | � | 1000BASE-SX+ 3.3V SFP, up to 2Km (multimode) |
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