| Technical Specifications |
| Max. Forwarding Rate | | | 10M:14,880 pps / 100M:148,809 pps / 1G:1,488,095 pps |
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| Forwarding Mode |
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| Switching Capacity |
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| Flash Memory |
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| MAC Address |
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| IGMP Snooping | | | Support 64 multicast groups |
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| 802.1D Spanning Tree | | | Support per device STP & BPDU forwarding. |
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| Static Port Trunk | | | Support max 6 groups per device and 8 ports per group |
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| Flow Control | | | 802.3x supported flow control |
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| Port Mirroring | | | Support one-to-one or many-to-one port mirroring | | | Support TX,RX and Both mode |
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| 802.1Q VLAN Group | | | Support 256 static VLAN groups | | | Able to configure VID from 1-4094 |
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| 802.1p support |
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| 802.1x Port-based Access Control | | | Default 802.1x forwarding |
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| Broadcast Storm Control | | | Allow specifying the per device threshold in terms of 8K - 4096K Bytes per second |
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| Static MAC Address | | | Support 256 Static MAC entries |
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| D-Link Safeguard Engine | | | Protect CPU from Broadcast/Multicast/Unicast flooding |
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| Web-based GUI | | | Compatible with IE, Netscape, Mozilla, Firefox, Opera, Safari browsers | | Configuration Backup/Restore | | | Firmware Backup/Restore | | | Reboot |
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| SNMP v1 | | | Configurable Community setting | | | Support SNMP Trap |
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| DHCP Client | | | Supports ability to fuction as a DHCP client |
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| Switch Discovery/Management Utility | | | Up to 256 agents/switches |
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| Port Setting | | | Can set Speed, Duplex mode, flow control |
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| Firmware Upgrade | | | Via SmartConsole Utility |
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| Interface Options |
| RJ-45 (48x 10/100BaseT ports & 2 1000Base-T ports) | | | IEEE 802.3 compliance | | | IEEE 802.3u compliance | | | IEEE 802.3x Flow Control support for Full-Duplex mode, Back Pressure when Half-Duplex mode |
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| SFP (2 combo 1000Base-T/SFP ports) | | | IEEE 802.3ab compliance | | | IEEE 802.3z compliance | | | IEEE 802.3u compliance | | | IEEE 802.3x Flow Control support for Full-Duplex mode, Back Pressure when Half-Duplex mode |
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| Network Management |
| In & Out of Band | | | HTTP, SNMP v1, Port Mirroring |
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| Physical & Environment |
| AC Input | | | 100-240 VAC, 50/60Hz | | | Internal universal power supply |
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| Temperature | | | Operation: 0° - 40°C (32° - 104° F) | | | Storage: 10° - 70°C (14° - 158° F) |
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| Humidity | | | Operation: 10%-90% RH | | | Storage: 5% ~ 90% RH |
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| Power Consumption |
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| Heat Dissipation |
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| Dimension (WxDxH) | | | 19-inch, 1U Rack-mount size | | | 440mm x 310mm x 44mm (17.3" x 12.2" x 1.73") |
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| Emission (EMI) and Safety Certifications |
| EMI-EMC Compliance | | | FCC class A, CE Class A,VCCI Class A |
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| Safety Compliance |
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| Warranty Information |
| Warranty | | | Limited Lifetime Warranty for as long as the original customer/end user owns the product. (Excludes Power Supply and Fan) |
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| Ordering Information |
| Part Number |
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| DES-1252 | | | Web smart 48 port 10/100Mbps with 2 Combo Gigabit copper/SFP ports, 2 1000BASE-T uplinks |
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| DEM-310GT | | | 1000Base-LX SFP/Mini Gigabit Interface converter (up to 10km) |
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| DEM-311GT | | | 1000Base-SX SFP/Mini Gigabit Interface converter (up to 550m) |
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| DEM-210 | | | 100BASE-FX 155 Mbps Single-Mode 15km SFP Transceiver |
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| DEM-211 | | | 100BASE-FX 155 Mbps Multi-Mode 2km SFP Transceiver |
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