D-Link 48-Port POE + 2GE

Technical Specifications

General

Interfaces:
DGS-3120-24TC
• 20 x 10/100/1000BASE-T ports (RJ45)
• 4 x Gigabit Combo ports (RJ45/SFP)
• 2 x 10GbE Stacking Ports (CX4)
• Console Port: RJ45
• SD Card Slot
• Optional Redundant Power Supply: DPS-200/DPS-200A

DGS-3120-48TC
• 44 x 10/100/1000BASE-T ports (RJ45)
• 4 x Gigabit Combo ports (RJ45/SFP)
• 2 x 10GbE Stacking Ports (CX4)
• Console Port: RJ45
• SD Card Slot
• Optional Redundant Power Supply: DPS-500A

DGS-3120-24PC
• 20 x 10/100/1000BASE-T ports (RJ45)
• 4 x Gigabit Combo ports (RJ45/SFP)
• 2 x 10GbE Stacking Ports (CX4)
• Console Port: RJ45
• SD Card Slot
• Optional Redundant Power Supply: DPS-700

DGS-3120-48PC
• 44 x 10/100/1000BASE-T ports (RJ45)
• 4 x Gigabit Combo ports (RJ45/SFP)
• 2 x 10GbE Stacking Ports (CX4)
• Console Port: RJ45
• SD Card Slot
• Optional Redundant Power Supply: DPS-700

Performance

Switch Capacity
• DGS-3120-24TC: 88 Gbps
• DGS-3120-48TC: 136 Gbps
• DGS-3120-24PC: 88 Gbps
• DGS-3120-48PC: 136 Gbps

64-Byte Packet Forwarding Rate
• DGS-3120-24TC:65.48 Mbps
• DGS-3120-48TC:101.19 Mbps
• DGS-3120-24PC: 65.48 Mbps
• DGS-3120-48PC: 101.19 Mbps

Packet Buffer Memory
• 2 MB (all models)

Flash Memory
• 32 MB (all models)

Power over Ethernet (DGS-3120-24PC and DGS-3120-48PC only)

PoE Standards
• DGS-3120-24PC:802.3af / 802.3at
• DGS-3120-48PC:802.3af / 802.3at

PoE Power Budget
• DGS-3120-24PC:370W (740W with DPS-700)
• DGS-3120-48PC:370W (740W with DPS-700)

Physical and Environmental

MTBF
• DGS-3120-24TC: 344,512 hours
• DGS-3120-48TC: 275,756 hours
• DGS-3120-24PC:  272,292 hours
• DGS-3120-48PC: 213,575 hours

Acoustics
• DGS-3120-24TC:
• Max: 44.2 dB
• Min: 28.1 dB
• DGS-3120-48TC:
• Max: 49.6
• Min: 37.7 dB
• DGS-3120-24PC:
• Max: 52.5 dB
• Min: 38.1 dB
• DGS-3120-48PC:
• Max: 50.2 dB
• Min: 37.3 dB

Heat Dissipation
• DGS-3120-24TC:
• 121.1 BTU/h
• DGS-3120-48TC:
• 209.7 BTU/h
• DGS-3120-24PC:
• 1665.10 BTU/h (w/370 W PoE load)
• 3227.9 BTU/h (w/740 W PoE load)
• DGS-3120-48PC:
• 1838 BTU/h (w/370 W PoE load)
• 3283.83 BTU/h (w/740 W PoE load)

Power Input
• 100 to 240 VAC 50 to 60 Hz (all models)

Max. Power Consumption
• DGS-3120-24TC:
• 35.5 W
• DGS-3120-48TC:
• 61.5 W
• DGS-3120-24PC:
• 488.3 watts (w/370 W PoE load)
• 946.6 watts (w/740 W PoE load)
• DGS-3120-48PC:
• 539 watts (w/370 W PoE load)
• 963 watts (w/740 W PoE load)

Dimensions (W x D x H)
• DGS-3120-24TC: 17.3 x 8.3 x 1.73 inches (440 x 210 x 44 mm)
• DGS-3120-48TC: 17.3 x 12.2 x 1.73 inches (440 x 310 x 44 mm)
• DGS-3120-24PC: 17.3 x 12.2 x 1.73 inches (440 x 310 x 44 mm)
• DGS-3120-48PC: 17.3 x 15.0 x 1.73 inches (440 x 380 x 44 mm)

Weight
• DGS-3120-24TC: 5.66 lbs / 2.57 kg
• DGS-3120-48TC: 10.0 lbs / 4.54 kg
• DGS-3120-24PC: 11.71 lbs / 5.31 kg
• DGS-3120-48PC: 14.15 lbs / 6.42 kg

Ventilation
• Smart Fan³ (High Speed at > 40 ˚C; Low Speed at < 35 ˚C) (all models)

Operating Temperature
• 32°F to 122°F (0°C to 50°C) (all models)

Storage Temperature
• -40°F to 158°F (-40°C to 70°C) (all models)

Operating Humidity
• 10% to 90% RH (all models)

Storage Humidity
• 5% to 90% RH (all models)

Certifications (all models)

Safety
• CB, cUL, LVD, BSMI

EMI/EMC
• FCC Class A, CE Class A, VCCI Class A, IC, C-Tick, BSMI

Other
• IPv6 Ready Logo Phase 2

Software Features - All Models

Standard Image (SI) Software includes the following features: (ships with product)

Stackability
• Physical stacking
• Up to 40G stacking bandwidth
• Up to 6 units per stack
• Virtual Stacking
• Supports D-Link Single IP Management (SIM)
• Up to 32 units per Virtual Stack

L2 Features
• MAC Address Table : 16K entries
• Flow Control
• 802.3x Flow Control
• HOL Blocking Prevention
• Jumbo Frames up to 13 Kbytes
• 802.3ad Link Aggregation
• Max. 32 groups per device, 8 Gigabit ports per group
• Spanning Tree Protocols
• 802.1D STP
• 802.1w RSTP
• 802.1s MSTP
• BPDU Filtering
• Root Restriction
• Loopback Detection
• Port Mirroring
• One-to-One
• Many-to-One
• Flow-based
• RSPAN Mirroring

L2 Multicasting
• IGMP Snooping
• IGMP v1/v2/v3 Snooping
• Supports 1024 IGMP groups
• Port/Host-based IGMP Snooping Fast Leave
• Limited IP Multicast
• Up to 24 IGMP filtering profiles, 32 ranges per profile
• MLD Snooping
• MLD v1/v2 Snooping
• Support 1024 MLD Groups
• Host-based MLD Snooping Fast Leave

VLAN
• VLAN Group
• Max. 4K VLAN Groups
• GVRP
• Max. 4K Dynamic VLAN Groups
• 802.1Q Tagged VLAN
• Port-based VLAN
• 802.1v Protocol VLAN
• Voice VLAN
• MAC-based VLAN
• ISM VLAN
• Asymmetric VLAN
• Private VLAN
• VLAN Trunking

QoS (Quality of Service)
• 802.1p
• 8 queues per port
• Queue Handling
• Strict Priority
• Weighted Round Robin (WRR)
• Strict + WRR
• Supports following actions for flows
• Remark 802.1p Priority Tag
• Remark TOS/DSCP Tag
• Bandwidth Control
• CoS based on
• Switch Port
• VLAN ID
• 802.1p Priority Queues
• MAC Address
• IPv4 Address
• DSCP
• Protocol Type
• TCP/UDP Port
• User-Defined Packet Content
• IPv6 Address
• IPv6 Traffic Class
• IPv6 Flow Label
• Bandwidth Control
• Port-based (Ingress/Egress, Min. Granularity 8 Kbps)
• Flow-based (Ingress/Egress, Min. Granularity 8 Kbps)
• Three Color Marker
• CIR/PIR minimum granularity: 8 kbps
• Two Rate Three Color Marker (trTCM), CBS/PBS
• Single Rate Three Color Marker (srTCM), CBS/EBS

Access Control List (ACL)
• ACL based on
• 802.1p Priority
• VLAN ID
• MAC Address
• Ether Type
• IPv4 Address
• DSCP
• Protocol Type
• TCP/UDP Port Number
• User-Defined Packet Content
• IPv6 Address
• IPv6 Flow Label
• IPv6 Traffic Class
• Supports up to 1.5K Ingress access rules
• Time-based ACL
• CPU Interface Filtering

Security
• SSH v2
• SSL v1/v2/v3
• Port Security
• Up to 64 MAC addresses per port/VLAN
• Broadcast/Multicast/Unicast Storm Control
• Traffic Segmentation
• D-Link Safeguard Engine
• NetBIOS/NetBEUI Filtering
• DHCP Server Screening
• ARP Spoofing Prevention
• DoS Attack Prevention
• BPDU Attack Protection

AAA
• 802.1X:
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL or QoS) Assignment
• Authentication Database Failover
• Web-based Access Control (WAC):
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL or QoS) Assignment
• Authentication Database Failover
• MAC-based Access Control (MAC):
• Port-based Access Control
• Host-based Access Control
• Identity-driven Policy (VLAN, ACL or QoS) Assignment
• Authentication Database Failover
• Japan Web-based Access Control (Host-based JWAC)
• Guest VLAN
• Microsoft® NAP
• Support 802.1X NAP
• Support DHCP NAP
• RADIUS Accounting
• TACACS+ Accounting
• RADIUS and TACACS authentication for switch access
• Four levels of User Account control

Green Features
• Compliant with RoHS
• Power Saving by Link Status
• Power Saving by Cable Length
• Time-based PoE¹
• IEEE 802.3az Energy Efficient Ethernet (EEE)

Operation, Administration & Management (OAM)
• Cable Diagnostics

Management
• Web-based GUI
• Command Line Interface (CLI)
• Telnet Server
• Telnet Client
• TFTP Client
• DNS Client
• Secure FTP Server
• ZModem
• SNMP v1/v2c/v3
• SNMP Traps
• System Log
• RMON v1:
• Supports 1,2,3,9 groups
• RMON v2:
• Supports ProbeConfig group
• LLDP
• BootP/DHCP Client
• DHCP Auto-Configuration
• DHCP Relay
• DHCP Client Option 12
• DHCP Relay Option 18, 37, 82
• Flash File System
• Multiple Images
• Multiple Configurations
• CPU Monitoring
• Debug Command
• SNTP
• Password Recovery
• Password Encryption
• Trusted Host
• Microsoft® NLB (Network Load Balancing) Support
• ICMPv6

Enhanced Image (EI) Software includes all SI features plus the following: (requires additional license upgrade)

L2 Features
• Ethernet Ring Protection Switching (ERPS)

VLAN
• Double VLAN (Q-in-Q)
• Port-based Q-in-Q

L3 Features
• Max. 16 IP Interfaces
• ARP Proxy
• IPv6 Neighbor Discovery (ND)

L3 Routing
• Static Route
• 512 static routing entries for IPv4/IPv6

Access Control List (ACL)
• Supports up to 512 egress access rules

Security
• IP-MAC-Port Binding
• ARP Packet Inspection
• IP Packet Inspection
• DHCP Snooping
• IPv6 ND Snooping
• Support up to 510 Address Binding Entries per Device

AAA
• Compound Authentication

Operation, Administration & Management (OAM)
• 802.3ah Ethernet Link OAM
• 802.3ah D-Link Extension: D-link Unidirectional Link Detection (DULD)
• 802.1ag Connectivity Fault Management (CFM)
• ITU-T Y.1731

Management
• sFlow
• PPPoE Circuit-ID Tag Insertion

MIB and RFC

MIB
• RFC 1213 MIB II
• RFC 4188 Bridge MIB
• RFC 1157, 2571-2576 SNMP MIB
• RFC 1907 SNMPv2 MIB
• RFC 1757, 2819 RMON MIB
• RFC 2021 RMONv2 MIB
• RFC 1398, 1643, 1650, 2358, 2665 Ether-like MIB
• RFC 2674 802.1p MIB
• RFC 2233, 2863 IF MIB
• RFC 2618 RADIUS Authentication Client MIB
• RFC 2620 RADIUS Accounting Client MIB
• RFC 2925 PING & TRACEROUTE MIB
• RFC 2674, 4363 802.1p MIB
• RFC 1065, 1066, 1155, 1156, 2578 MIB Structure
• RFC 1215 MIB Traps Convention
• RFC 1212 Concise MIB Definitions
• RFC 1215 MIB Traps Convention
• RFC 1157, 2571-2576 SNMP MIB
• RFC 4022 MIB for TCP
• RFC 4113 MIB for UDP
• RFC 4293 IPv6 SNMP Mgmt Interface MIB
• RFC 2737 Entity MIB (version 2)

RFC Standard Compliance
• RFC 768 UDP
• RFC 791 IP
• RFC 792, 2463, 4443 ICMP
• RFC 793 TCP
• RFC 826 ARP
• RFC 3513, 4291, IPv6 Addressing Architecture
• RFC 2893, 4213 IPv4/IPv6 dual stack function
• RFC 2463, 4443 ICMPv6
• RFC 2462, 4862 IPv6 Stateless Address Auto Configuration
• RFC 2464 IPv6 Ethernet and definition
• RFC 1981 Path MTU Discovery for IPv6
• RFC 2460 IPv6
• RFC 2461, 4861 Neighbor Discovery for IPv6
• RFC 783 TFTP
• RFC 2068 HTTP
• RFC 1492 TACACS
• RFC 2866 RADIUS Accounting
• RFC 2474, 3260 DiffServ
• RFC 1321, 2284, 2865, 3580, 3748 Extensible Authentication Protocol (EAP)
• RFC 2571, 2572, 2573, 2574, SNMP
• IPv6 Ready Logo Phase 2
• RFC 854 Telnet
• RFC 951, 1542 BootP

Ordering Information⁴
• DGS-3120-24TC/SI
• xStack Managed 20-Port Gigabit Stackable L2 Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image
• Lifetime Warranty
• DGS-3120-48TC/SI
• xStack Managed 44-Port Gigabit Stackable L2 Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image
• Lifetime Warranty
• DGS-3120-24PC/SI
• xStack Managed 20-Port Gigabit Stackable L2 PoE+ Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image
• Lifetime Warranty
• DGS-3120-48PC/SI
• xStack Managed 44-Port Gigabit Stackable L2 PoE+ Switch, with 4 Combo RJ45/SFP, 40-Gigabit Stacking with 2 10G-CX4 ports, embedded Standard Image
• Lifetime Warranty

Optional License Upgrades
• DGS-3120-24TC-SE-LIC DGS-3120-24TC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI)
• DGS-3120-48TC-SE-LIC DGS-3120-48TC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI)
• DGS-3120-24PC-SE-LIC DGS-3120-24PC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI)
• DGS-3120-48PC-SE-LIC DGS-3120-48PC DLMS License Upgrade from Standard Image (SI) to Enhanced Image (EI)

Optional SFP Optical Transceivers
• DGS-712 1000BASE-T SFP Transceiver
• DEM-310GT 1000BASE-LX SFP Transceiver, 10KM
• DEM-311GT 1000BASE-SX SFP Transceiver, up to 550M
• DEM-211 100BASE-FX SFP Transceiver, 2KM

Optional Stacking Cables
• DEM-CB50 50cm Stacking Cable with screw type connector
• DEM-CB100 1m Stacking Cable with screw type connector
• DEM-CB300 3m Stacking Cable with screw type connector

Optional Redundant Power Supplies
• DPS-200 / DPS-200A Redundant Power Supply Unit, 60 Watt RPSU
• DPS-500A Redundant Power Supply Unit, 140 Watt RPSU
• DPS-700 Redundant Power Supply Unit, 589 Watt RPSU
• DPS-800 2-Slot RPS Chassis (use for DPS-200 / DPS-200A / DPS-500A)
• DPS-900 8-Slot RPS Chassis (use for DPS-200)

Optional Management Software
• DV-700 D-View 7 Network Management System
• DV-700-N25-LIC D-View 7 NMS - 25 Node License Upgrade
• DV-700-N50-LIC D-View 7 NMS - 50 Node License Upgrade
• DV-700-N100-LIC D-View 7 NMS - 100 Node License Upgrade
• DV-700-N250-LIC D-View 7 NMS - 250 Node License Upgrade
• DV-700-N500-LIC D-View 7 NMS - 500 Node License Upgrade
• DV-700-N1000-LIC D-View 7 NMS - 1000 Node License Upgrade
• DV-700-P5-LIC D-View 7 NMS - 5 Probe License Upgrade
• DV-700-P25-LIC D-View 7 NMS - 25 Probe License Upgrade

¹ This feature supported with PoE models only: DGS-3120-24PC and DGS-3120-48PC.
² 50ms response time based on an ITU-T G.8032 recommended environment.
³ By default, the fan speed is low. When over 40˚C, the fan switches to high speed and remains high until the temperature drops below 35˚C.
⁴ Stacking cable, SD card, RPS, and optical transceivers are not included and must be separately purchased.