Features

• D-Link Green Technology
• 48Gbps Switching Capacity
• 8K MAC Address Table
• True Plug & Play
• Fiber Media Support Via SFPs
• 24 IEEE 802.3af Power over Ethernet Ports
• Limited Lifetime Warranty
• Advance Warranty Replacement (24 Hour Cross-shipment).

D-Link’s latest generation of Web Smart Gigabit Switches blend plug-and-play simplicity with exceptional performance and reliability to create a cost-effective solution for bandwidth-starved work groups and departments. Enhanced features of the DGS-1224TP include Gigabit uplink combo ports, Power over Ethernet, QoS, and versatile management functions. Power over Ethernet easily allows you to install and power wireless access points, network cameras, VoIP phones and other network equipment for simplified and reduced deployment costs. Total PoE power budget on 24 10/100/1000 ports for the DGS-1224TP is 180 watts. Therefore, the maximum power output per PoE port is up to 15.4W on 11 ports or 7.5W on 24 ports simultaneously.

The DGS-1224TP is housed in a new style 19” rackmount case with an easy-to-view front panel and diagnostic LEDs. User-friendly, web-based management is supported for easy configuration and flexibility for different network requirements.

Secure Your Network
The DGS-1224TP provides a robust set of security features normally found only in fully managed switching solutions. They are equipped with the D-Link Safeguard Engine™ to protect the CPU from malicious attacks. When frames enter the switch, the D-Link Safeguard Engine detects and blocks broadcast, multicast, and unicast flooding, which can overload a CPU and bring network traffic to a halt. In addition, the switches provide support for secure encrypted 802.1X Port-based Authentication, Broadcast Storm Control, and up to 256 static MAC address entries.

You can also manage the switches from a remote station using the Trusted Host function. Management can be from up to three designated management stations through a web browser or telnet session.

IEEE 802.1Q VLAN Tagging
VLANs allow your network to be segmented into Departmental, Hierarchical, and Security groups and place a “tag” in a frame to identify which VLAN it belongs to. This allows 802.1Q-compliant devices to work seamlessly together to manage VLAN traffic.

Asymmetric VLANs
Asymmetric VLANs are also supported by the DGS-1224TP. With this feature enabled, VLAN groups can send information to each other without the traffic going through a router or a Layer 3 switch. This eliminates expense and maximizes efficiency while maintaining security.

802.1p Priority Tagging or DSCP-based QoS
The DGS-1224TP allows users to prioritize traffic based on 802.1p or DSCP-based (Differentiated Services Case Point) QoS. Port-based QoS prioritizes all port traffic with one value, while 802.1p classifies frames according to their VLAN tag. DSCP-based QoS prioritizes traffic according to its IP header. DSCP-based QoS and 802.1p priority tagging prioritizes traffic such as VoIP as it enters the switch, ensuring that your data is always clear and jitter-free.

Link Aggregation
The DGS-1224TP supports Static Link Aggregation, which “trunks” multiple ports together to function as a single, high-bandwidth channel. When a high-bandwidth channel is needed to uplink to another switch, Link Aggregation makes this process simple and hassle-free.

Jumbo Frame Support
Jumbo Frame support is designed to improve network throughput and significantly reduce the CPU utilization of large file transfers (such as multimedia files or large data files). This is accomplished by enabling larger, more efficient payloads per packet. The DGS-1224TP supports Jumbo Frames up to 10KB in size.

IGMP Snooping
IGMP Snooping allows for the forwarding of multicast packets, such as streaming audio and video, without increasing network congestion. By snooping IGMP registration information within a frame, a list of workstations in the multicast group is created. The switch uses this list to intelligently forward packets to the appropriate workstations.

Cable Diagnostics
Because your connection is just as important as the switch itself, the DGS-1224TP is designed with a cable diagnostic feature that detects transmission errors and the condition of cables attached to the switch’s Gigabit copper ports. Cable Diagnostics make it easier to troubleshoot cabling issues through a web-based interface and keep all connections up.

Advanced Management Features
The DGS-1224TP supports SNMP v1, a useful tool in managing and controlling SNMP-supported network devices. SNMP enables the switches to provide valuable information about the switch’s status and send traps on abnormal events. This sharing of vital management information saves time and money.

The DGS-1224TP also supports 802.1D Spanning Tree, which provides protection from universal cabling loops forming within a network infrastructure. Spanning tree detects and breaks these loops, ensuring network uptime.

Management Utility
In addition to the Web-based Management Interface, the DGS-1224TP also ships with the D-Link SmartConsole Utility. This utility provides a valuable tool in managing, planning, and troubleshooting network configurations. Managing a Web Smart switch takes only minutes. With full color graphics, diagrams, and easy-to-understand navigation menus, using the SmartConsole Utility is as easy as surfing the web. The SmartConsole Utility also includes: 
Discovery List – Automatically detects and displays up to 254 D-Link Web Smart Switches on your network along with their MAC addresses. 
Monitor List – Monitors switch status and any trap messages sent to a designated station. 
Trap View – Notifies the administrator whenever an abnormal event occurs on the switch. 
Device Setting – Allows the administrator to set up the switch’s IP Address, Subnet Mask, Gateway, Send Trap to Address, System Name, Password, and Location.

 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 802.3z Gigabit Ethernet (fiber) ANSI/IEEE 802.3

. NWay Auto-Negotiation

. IEEE 802.3x Flow Control

. 802.3af Power over Ethernet (for DGS-1224TP only)

Number of Ports ƒ

. DGS-1216T: 16 10/100/1000BASE-T ports, 2 combo SFP slots

. DGS-1224T: 24 10/100/1000BASE-T ports, 2 combo SFP slots

. DGS-1224TP: 24 10/100/1000BASE-T PoE ports, 4 combo SFP slots

. DGS-1248T: 48 10/100/1000BASE-T ports, 4 combo SFP slots

. Use of SFP will disable their corresponding 10/100/1000BASE-T connections

SFP Modules

. Optional SFP Transceivers:

DEM-310GT 1000BASE-LX, Single-mode, 10km

DEM-311GT 1000BASE-SX, Multi-mode, 500m

DEM-312GT2 1000BASE-SX, Multi-mode, 2km

DEM-314GT 1000BASE-LX, Single-mode, 50km

DEM-315GT 1000BASE-LX, Single-mode, 80km

Optional WDM Transceivers:

DEM-330T (1000BASE-LX, wavelength Tx: 1550nm, Rx: 1310nm, Single-mode, 10km)

DEM-330R (1000BASE-LX, wavelength Tx: 1310nm, Rx: 1550nm, Single-mode, 10km)

DEM-331T (1000BASE-LX, wavelength Tx: 1550nm, Rx: 1310nm, Single-mode, 40km)

DEM-331R (1000BASE-LX, wavelength Tx: 1310nm, Rx: 1550nm, Single-mode, 40km)

Data Transfer Rates ƒ. Ethernet:

10Mbps (half duplex)

20Mbps (full duplex)

Fast Ethernet:

100Mbps (half duplex)

200Mbps (full duplex)

Gigabit Ethernet:

2000Mbps (full duplex)

Topology ƒ. Star

Network Cables ƒ. UTP Cat. 5, Cat. 5e (100 meters max.)

. EIA/TIA-568 100-ohm STP (100 meters max.)

Full/half Duplex ƒ. Full/half duplex for 10/100Mbps speeds

. Full duplex for Gigabit speeds

Media Interface Exchange

. Auto MDI/MDIX adjustment for all twisted-pair ports

LED Indicators

. DGS-1216T, DGS-1224T:

Per device: Power/CPU

Per 10/100/1000BASE-T port: Link/Act, 100/1000Mbps

Per SFP slot: Link/Act, 1000Mbps

DGS-1224TP:

Per device: Power/PWR Max/CPU/Fan Error

Port LED Mode Indicator: Link/Act Mode/PoE Mode

Per 10/100/1000BASE-T port: Link/Act, 100/1000Mbps

Per SFP slot: Link/Act, 1000Mbps

DGS-1248T:

Per device: Power/CPU

Per 10/100/1000BASE-T port: 10/100Mbps, 1000Mbps

Per SFP slot: Link/Act, 1000Mbps

Software

L2 Features ƒ. IGMP v1/2 Snooping: supports 64 multicast groups

. 802.1D Spanning Tree

. Static Port trunk (Link Aggregation): up to 6 groups per device, up to 8 ports per group

Green Ethernet

. Power Saving Mode (as compared with previous models)

Full Load/Max. Power Consumption

DGS-1216T: 24%

DGS-1224T: 11%

DGS-1248T: 24%

Link Down Power Consumption

DGS-1216T: 32%

DGS-1224T: 23%

DGS-1248T: 21%

Note: The Power Saving percentage cannot be applied for DGS-1224TP, since there is no previous version of this model.

VLAN
 
. 802.1Q VLAN (VLAN Tagging)

. Up to 256 static VLAN groups

.Management VLAN

. Asymmetric VLAN

QoS (Quality of Service)

. 802.1p Priority Queues

. Up to 4 queues per port

. DSCP-based QoS

. Supports WRR or Strict Mode in Queue Handling

Security

. 802.1X Port-based Access Control

. Broadcast Storm Control: threshold of 8K, 16K, 32K, 64K, 128K, 256k, 512K, 1024K, 2048K, 4096K bytes per second

. D-Link Safeguard Engine to protect CPU from broadcast / multicast / unicast flooding

. Trusted Host

. Cable Diagnostics function