DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
Optimize Performance using
Jumbo Frames

ƒ Supports up to 10,240bytes Jumbo
Frames for 16T/24T/24TP, and 9220bytes
for 48T
Unique Power Saving

ƒ Automatically powers down ports that
have no link
Simplifi ed Network Deployment

ƒ Supports 802.3af Power Over Ethernet1
for easy installation
Enhanced Security Features

ƒ Access Security with 802.1X Port-based

ƒ Broadcast Storm Control

ƒ Safeguard Engine feature guarantees
D-Link’s latest generation Gigabit Web Smart D-Link Green Technology
switch performance
Switch series is designed mainly to enhance D-Link is striving to take the lead in developing
the performance and security of small business innovative and power-saving technology that
Static Port Trunking
networks. With four models to choose from, the does not sacrifi ce operational performance or

ƒ Up to 6 trunk groups supported for
DGS-1216T/1224T/1224TP/1248T brings Gigabit functionality. The DGS-1216T/1224T/1224TP/1248T
Server Connection or Switch Cascading,
speeds to support bandwidth-intensive applications web smart switches implement the D-Link Green
and each trunk supports up to 8 ports
and further expand your network of switches. Technology, which include Green features such as
Enhanced features include Gigabit uplink combo the power saving mode, reduced power consumption
Intuitive Centralized
ports, Power over Ethernet1, QoS and versatile and reduced heat dissipation. The switches adopt
management functions. Power over Ethernet the latest silicon technology, which helps lower
easily allows you to install and power wireless your power consumption usage. The power saving

ƒ SmartConsole utility for auto-discovery
access points, network cameras, VoIP phones feature automatical y powers down ports that have
of all the D-Link smart switches
and other network equipment for simplifi ed and no links or link partners.

ƒ Web-based GUI for easy management
reduced deployment costs. Total PoE power budget
on 24 10/100/1000 ports for the DGS-1224TP is Protecting The Environment For A Better Tomorrow

ƒ A Smart Wizard (built-in the Web GUI)
180watts. Therefore, the maximum output power The incorporation of the D-Link Green technology
for initial confi guration
per PoE port is up to 15.4W on 11 ports or 7.5W on into these switches re-emphasizes D-Link’s

ƒ MIB browser for SNMP management
24 ports simultaneously.
strong commitment to protecting the environment,
leading the development of eco-friendly products.
The switches are housed in a new style 19”rack-
These switches comply with RoHS (Restriction of
mount metal case with an easy-to-view front panel Hazardous Substances) and WEEE (Waste Electrical
and diagnostic LEDs and feature an innovative and Electronic Equipment) directives. RoHS
fanless design2. A user-friendly web-based directives restrict the use of specifi c hazardous
management is supported for easy configuration materials during the manufacture of electrical and
1Available on DGS-1224TP only
and fl exibility for different network requirements.
electronic goods, while WEEE applies standards for
2Available on DGS-1216T/24T only
proper disposal and recyclable packaging to help
reduce wastage.

DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
Superior VLAN Features
Seamless Integration
open circuit (a lack of continuity between the pins
The switches offer Gigabit copper ports that are at each end of an Ethernet cable or a disconnected

ƒ 802.1Q: VLAN Tagging for Traffi c
capable of connecting to your existing Cat.5 twisted-
cable) or a short circuit between two or more
Segmentation, and 256 VLAN groups
pair cables. This eliminates the need of a complex conductors.

ƒ Asymmetric VLAN: For more effi cient
re-confi guration process. Each switch model of the
use of shared resources such as
Gigabit series provides two or four combo SFP slots Network Security
server or gateway devices
to form a multi-level network structure consisting The switches provide MAC address fi lters screen,
of a high-speed backbone and centralized servers. for easy access to the network. They support 802.1X
Advanced QoS
In addition, al the ports support auto-negotiation port-based authentication, allowing the network

ƒ Ensures effi cient time-sensitive data
and MDI/MDIX crossover function. So do away to be confi gured with external RADIUS servers.
delivery, even during bursts of high
with cross over cables or uplink ports and bring Enhance your network security with the Asymmetric
traffi c
inexpensive Gigabit connection to your desktop.
VLAN feature. With this feature, you can segregate
ports into different virtual LAN groups to enhance

ƒ Supports IEEE 802.1p QoS up to four
Extensive Layer 2 Features
security and prevent data leaks. This feature also
802.1p Priority Queues and DSCP QoS
The switches offer superior performance and increases the effi ciency of sharing resources such
for VoIP applications
availability through features such as Jumbo Frames, as servers or gateway devices.

ƒ Ensures optimal experience for gamers
IGMP Snooping, Port Mirroring, Spanning Tree and
and other requirements by prioritizing
Port Trunking. IEEE 802.3x Flow Control allows your D-Link Safeguard Engine identifi es and prioritizes
network traffi c
servers to directly connect to the switch for fast, “CPU interested” packets to prevent malicious
reliable data transfer. The Gigabit ports provide traffi c from interrupting normal network fl ows and
dedicated bandwidths for your desktops running at protects switch operation.
2000Mbps full duplex, with minimum data transfer
Versatile Management
The switches’ web-based SmartConsole Utility is as
Traffi c Prioritization
easy to use as surfi ng the web. The utility includes
802.1Q VLAN tagging prioritizes traffi c, enhances useful features that automatical y discover and
network security and performance while 802.1p display all web smart switches on the same L2
enables you to run bandwidth-sensitive applications network segment connected to a local PC. The web-
such as streaming multimedia and VoIP in network. based GUI al ows for easy access to a switch from
These functions allow switches to work seamlessly anywhere without having to remember IP addresses
in the network.
or subnets. The GUI also includes a wizard that
allows you to pre-confi gure basic functions such as
Cable Diagnostics
passwords, system information and SNMP settings.
Gigabit networks use 8-wire CAT 5 RJ-45 cables. Users can also use the built-in MIB browser to poll
However, networks in older buildings could still the switches for information about their status and
be using 4-wire CAT 3/5 RJ-45 cables. The Cable send trap messages of abnormal events. The MIB
Diagnostics function assists you to effectively browser al ows users to integrate the switches with
detect the RJ-45 cable condition while migrating the third-party devices for management in an SNMP
from an existing network to a Gigabit-capable one, environment.
and minimizing service calls during migration. Other
cable-related problems are, an RJ-45 cable with an

DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
Technical Specifications
Port Standards & Functions

ƒ IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)

ƒ IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)

ƒ IEEE 802.3ab 1000BASE-T Gigabit Ethernet (twisted- pair copper)

ƒ IEEE 802.3z Gigabit Ethernet (fiber) ANSI/IEEE 802.3
ƒ NWay Auto-Negotiation

ƒ IEEE 802.3x Flow Control
ƒ 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

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

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

ƒ DGS-1248T: 48 10/100/1000BASE-T ports, 4 combo SFP slots
* Use of SFP wil disable their corresponding 10/100/1000BASE-T connections
SFP Modules

ƒ 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

ƒ 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)

ƒ Fast Ethernet:
100Mbps (half duplex)
200Mbps (full duplex)

ƒ Gigabit Ethernet:
2000Mbps (full duplex)
ƒ Star
Network Cables

ƒ UTP Cat. 5, Cat. 5e (100 meters max.)
ƒ EIA/TIA-568 100-ohm STP (100 meters max.)
Full/half Duplex

ƒ Full/half duplex for 10/100Mbps speeds

ƒ Full duplex for Gigabit speeds
Media Interface Exchange

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

DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
LED Indicators

ƒ DGS-1216T, DGS-1224T:
Per device: Power/CPU
Per 10/100/1000BASE-T port: Link/Act, 100/1000Mbps
Per SFP slot: Link/Act, 1000Mbps

ƒ 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

ƒ DGS-1248T:
Per device: Power/CPU
Per 10/100/1000BASE-T port: 10/100Mbps, 1000Mbps
Per SFP slot: Link/Act, 1000Mbps
L2 Features

ƒ IGMP v1/2 Snooping: supports 64 multicast groups

ƒ 802.1D Spanning Tree

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

ƒ 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.

ƒ 802.1Q VLAN (VLAN Tagging)

ƒ Up to 256 static VLAN groups

ƒ Management VLAN

ƒ Asymmetric VLAN
QoS (Quality of Service)

ƒ 802.1p Priority Queues

ƒ Up to 4 queues per port

ƒ DSCP-based QoS

ƒ Supports WRR or Strict Mode in Queue Handling
ƒ 802.1X Port-based Access Control

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

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

ƒ Trusted Host

ƒ Cable Diagnostics function

DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
ƒ Web-based GUI

ƒ SNMP v1 support

ƒ DHCP Client

ƒ Trap setting for destination IP, system events, fiber port events, twisted-pair port events

ƒ Port Access Control

ƒ Web-based: Configuration backup/restoration

ƒ Web-based: Firmware backup/upload

ƒ Firmware upgrade using SmartConsole Utility

ƒ System Reboot using web-based interface

ƒ SmartConsole Utility
ƒ RFC 1213 MIB-II

ƒ D-Link Enterprise Private MIB
Switch Capacity
ƒ DGS-1216T: 32Gbps

ƒ DGS-1224T: 48Gbps

ƒ DGS-1224TP: 48Gbps

ƒ DGS-1248T: 96Gbps
Transmission Method
ƒ Store-and-forward
MAC Address Table
ƒ 8K entries per device
MAC Address Update
ƒ Up to 256 static MAC entries

ƒ Enable/disable auto-learning of MAC addresses
Maximum 64 bytes packet forwarding rate
ƒ DGS-1216T: 23.8Mpps

ƒ DGS-1224T: 35.7Mpps

ƒ DGS-1224TP: 35.7Mpps

ƒ DGS-1248T: 71.4Mpps
RAM Buffer
ƒ DGS-1216T: 512Kbytes per device

ƒ DGS-1224T: 512Kbytes per device

ƒ DGS-1224TP: 512Kbytes per device

ƒ DGS-1248T: 1Mbytes per device
Jumbo Frame
ƒ DGS-1216T, DGS-1224T, DGS-1224TP: 10,240bytes

ƒ DGS-1248T: 9,220bytes
Physical & Environmental
AC Input
ƒ 100 to 240 VAC 50/60Hz internal universal power supply
Power Consumption
ƒ DGS-1216T: 23W

ƒ DGS-1224T: 31.2W

ƒ DGS-1224TP: 250.3W

ƒ DGS-1248T: 76.2W
PoE Budget

ƒ DGS-1224TP: 180watts
DC Fans
ƒ DGS-1216T: 0

ƒ DGS-1224T: 0

ƒ DGS-1224TP: 2pcs

ƒ DGS-1248T: 3pcs

DGS-1216T, DGS-1224T, DGS-1224TP & DGS-1248T
16/24/48-Port Gigabit Web Smart Switches
Heat Dissipation

ƒ DGS-1216T: 78.48BTU/hr

ƒ DGS-1224T: 106.45BTU/hr

ƒ DGS-1224TP: 854.02BTU/hr

ƒ DGS-1248T: 259.99BTU/hr
Acoustic Value
ƒ DGS-1216T: 0 dB(A)

ƒ DGS-1224T: 0 dB(A)

ƒ DGS-1224TP: 47 dB(A)

ƒ DGS-1248T: 51.6 dB(A)
Operating Temperature
ƒ 0˚ to 40˚ C
Storage Temperature
ƒ -10˚ to 70˚ C
Operating Humidity
ƒ 10% to 90% non-condensing
Storage Humidity

ƒ 5% to 90% non-condensing
ƒ DGS-1216T: 440 x 210 x 44 (mm)
ƒ DGS-1224T: 440 x 210 x 44 (mm)

ƒ DGS-1224TP: 440 x 210 x 44 (mm)

ƒ DGS-1248T: 441 x 309 x 44 (mm)

ƒ 19-inch standard rack mounting width, 1U height

ƒ DGS-1216T: 2.72 kg

ƒ DGS-1224T: 2.80 kg

ƒ DGS-1224TP: 3.6 kg
ƒ DGS-1248T: 4.46g
ƒ FCC Class A

ƒ CE Class A

ƒ VCCI Class A

ƒ DGS-1216T: 228,450hrs

ƒ DGS-1224T: 215,976hrs

ƒ DGS-1224TP: 173,467 hours

ƒ DGS-1248T: 186,656hrs

ƒ cUL, LVD
D-Link Corporation
No. 289 Xinhu 3rd Road, Neihu, Taipei 114, Taiwan
Specifications are subject to change without notice.
D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries.
All other trademarks belong to their respective owners.
©2009 D-Link Corporation. All rights reserved.
Release 06 (March 2009)