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Specifications

Technical Specifications 

Interfaces 

• 10/100/1000BASE-T Ports 
     • 20 (DGS-3420-28TC, DGS-3420-28PC) 
     • 48 (DGS-3420-52T, DGS-3420-52P) 

• Gigabit SFP Ports 
     • 20 (DGS-3420-28SC) 

• Combo 10/100/1000BASE-T/SFP Ports 
     • 4 (DGS-3420-28TC, DGS-3420-28SC, DGS-3420-28PC) 

• 10 Gigabit SFP+ Ports 
     • 4 (all models) 

• Optional Redundant Power Supply 
     • DPS-500 (DGS-3420-28TC, DGS-3420-28SC, DGS-3420-52T) 
     • DPS-700 (DGS-3420-28PC, DGS-3420-52P) 

• Console Ports 
     • RJ45 (RS-232) (all models) 
     • RJ45 to DB9 cable included 

• Management Port 
     • RJ45 (10/100BASE-T) (all models) 

• Alarm Port 
     • 2 input, 1 output, (42VAC or 60VDC) (all models) 

• SD Card Slot 
     • 1 (all models) 

Performance 

• Switching Capacity 
     • 128Gbps (DGS-3420-28TC, DGS-3420-28SC, DGS-3420-28PC) 
     • 176Gbps (DGS-3420-52T, DGS-3420-52P) 

• Packet Forwarding Rate 
     • 95.24Mpps (DGS-3420-28TC, DGS-3420-28SC, DGS-3420-28PC) 
     • 130.95Mpps (DGS-3420-52T, DGS-3420-52P) 

• Packet Buffer 
     • 2 MB 

• MAC Address Table 
     • 16K Entries 

• IPv4/v6 Routing Table 
     • 1K/512 Entries 

• IPv4/v6 L3 Forwarding Table 
     • 2K/1K Entries 

• Jumbo Frame Size 
     • 13,000 bytes 

PoE

• PoE Ports 
     • 24 (DGS-3420-28PC) 
     • 48 (DGS-3420-52P) 

• PoE Budget 
     • 370W (740W with DPS-700) (DGS-3420-28PC, DGS-3420-52P) 

• 802.3af (PoE) 
     • Yes (DGS-3420-28PC, DGS-3420-52P) 

• 802.3at (PoE+) 
     • Yes (DGS-3420-28PC, DGS-3420-52P) 

Physical 

• MTBF (Hours) 
     • 287,763 hours (DGS-3420-28TC) 
     • 300,371 hours (DGS-320-28SC) 
     • 287,763 hours (DGS-3420-28PC) 
     • 301,667 hours (DGS-3420-52T) 
     • 300,371 hours (DGS-3420-52P) 

• Acoustic 
     • At Operation Temperature below 86 °F: 
          • < 38.7 dB (DGS-3420-28TC) 
          • < 38.9 dB (DGS-320-28SC) 
          • < 40.3 dB (DGS-3420-28PC) 
          • < 40.6 dB (DGS-3420-52T) 
          • < 38.9 dB (DGS-3420-52P) 

     • At Operation Temperature above 86 °F: 
          • < 46.5 dB (DGS-3420-28TC) 
          • < 46.2 dB (DGS-320-28SC) 
          • < 52.5 dB (DGS-3420-28PC) 
          • < 52.5 dB (DGS-3420-52T) 
          • < 46.2 dB (DGS-3420-52P) 

• Heat Dissipation 
     • 200.5 BTU/hr (DGS-3420-28TC) 
     • 205.3 BTU/hr (DGS-3420-28SC) 
     • 200.5 BTU/hr (DGS-3420-28PC) 
     • 187.6 BTU/hr (DGS-3420-52T) 
     • 205.3 BTU/hr (DGS-3420-52P) 

• Power Input 
     • 100 to 240 V AC, 50/60Hz • 100 to 240 V AC, 50/60Hz 

• Max Power Consumption 
     • 58.8 watts (DGS-3420-28TC) 
     • 60.2 watts (DGS-320-28SC) 
     • 478.0 watts (DGS-3420-28PC) 
     • 81.0 watts (DGS-3420-52T) 
     • 505.4 watts (DGS-3420-52P) 

• Dimensions (W x D x H) 
     • 17.36 x 12.2 x 1.72in (441 x 310 x 44 mm) (DGS-3420-28TC) 
     • 17.36 x 12.2 x 1.72in (441 x 310 x 44 mm) (DGS-320-28SC) 
     • 17.1 x 17.4 x 1.7in (441 x 380 x 44 mm) (DGS-3420-28PC) 
     • 17.1 x 17.4 x 1.7in (441 x 380 x 44 mm) (DGS-3420-52T) 
     • 17.1 x 17.4 x 1.7in (441 x 380 x 44 mm) (DGS-3420-52P) 

• Weight 
     • 9.1lbs (4.12 kg) (DGS-3420-28TC) 
     • 8.9lbs (4.06 kg) (DGS-320-28SC) 
     • 12.7lbs (5.75 kg) (DGS-3420-28PC) 
     • 11.2lbs (5.07 kg) (DGS-3420-52T) 
     • 14.1lbs (6.24 kg) (DGS-3420-52P) 

• Ventilation 
     • via Temperature Controlled Smart Fan 
          • > 102.2 F High Speed 
          • < 102.2 F Low Speed 

• Operating Temperature 
     • 32-122F (0-50C) 

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

• Operating Humidity 
     • 10% to 90% RH 

• Storage Humidity 
     • 5% to 90% RH 

• Emission (EMI) 
     • FCC Class A, CE Class A, VCCI Class A, IC, C-Tick 

• Safety 
     • CB, cUL, LVD 

• Certification 
     • IPv6 Ready Logo Phase 2 

Software Features 

• Stackability 
     • Virtual Stacking Support 
          • D-Link Single IP Management 
          • Up to 32 devices per virtual stack 
     • Physical Stacking 
          • Supports Duplex Chain/Ring topology 
          • Up to 40G stacking bandwidth 
          • Up to 12 units per stack 

• L2 Features 
     • MAC Address Table: 16K 
     • Flow Control 
     • 802.3x Flow Control 
          • HOL Blocking Prevention 
          • Jumbo Frames up to 13000 bytes 
     • IGMP snooping 
          • IGMP v1/v2/v3 Snooping 
          • Supports 960 groups 
          • Port/Host-based 
          • IGMP Snooping 
          • Fast Leave 
     • MLD Snooping 
          • MLD v1/v2 Snooping 
          • Supports 480 groups 
          • Host-based MLD Snooping Fast Leave 
     • Spanning Tree 
          • 802.1D-2004 STP 
          • 802.1w RSTP 
          • 802.1Q-2005 MSTP 
          • BPDU filtering 
          • Root Restriction 
     • Loopback Detection 
     • 802.3ad Link Aggregation 
     • Max. 32 groups per device 
          • 8 Gigabit ports or 2 10-Gigabit port per group 
     • Port Mirroring 
          • Supports 4 Mirroring Groups 
          • Supports One-to-One, Many-to-One, 
     • Flow-based, and RSPAN mirroring 
          • L2 Protocol Tunneling 
          • ERPS (Ethernet Ring Protection Switching) 

• VLAN 
     • VLAN Group 
          • Max. 4K Static VLAN Groups 
          • Max. 255 Dynamic VLAN Groups 
     • 802.1Q Tagged VLAN 
     • 802.1v Protocol VLAN 
     • GVRP 
     • Double VLAN (Q-in-Q) 
          • Port-based Q-in-Q 
          • Selective Q-in-Q4 
     • MAC-based VLAN 
     • VLAN Trunking 
     • 802.1Qbb (future) 

• L3 Features 
     • 256 IP interfaces 
     • Loopback interface 
     • IPv6 Tunneling 
     • Proxy ARP 
     • Gratuitous ARP 

• L3 Routing 
     • 1K routing entries shared by IPv4/v6 
          • Max. 1K IPv4 routes 
          • Max. 512 IPv6 routes 
     • 2K L3 forwarding entries shared by IPv4/v6 
          • Max. 2K IPv4 entries 
          • Max. 1K IPv6 entries 
     • 256 static routing entries for IPv4, 128 entries for IPv6 
     • RIP v1/v2 
     • RIPng 

• QoS (Quality of Service) 
     • 802.1p Class of Service (CoS) 
     • 8 queues per port 
     • Queue Handling 
          • Strict 
          • Weighted Round Robin (WRR) 
          • Strict + WRR 
     • CoS based on 
          • Switch Port 
          • VLAN ID 
          • 802.1p Priority Queues 
          • MAC Address 
          • IPv4/v6 Address 
          • DSCP 
          • Protocol Type 
          • IPv6 Traffic Class 
          • IPv6 Flow Label 
          • TCP/UDP Port 
          • User-defined Packet Content 
     • Supports following actions for flows: 
          • Remark 802.1p Priority Tag 
          • Remark TOS/DSCP Tag 
          • Bandwidth Control 
          • Flow Statistics 
          • Committed Information Rate (CIR),min. granularity 1 Kbps. 
          • Bandwidth Control 
          • Port-based (Ingress/Egress, min. granularity 64 Kbps) 
          • Flow-based (Ingress, min. granularity 64 Kbps) 
     • Time-based QoS 

• ACL (Access Control List) 
     • ACL based on 
          • 802.1p Priority 
          • VLAN ID 
          • MAC Address 
          • Ether Type 
          • IPv4/v6 Address 
          • DSCP 
          • Protocol Type 
          • TCP/UDP Port Number 
          • IPv6 Traffic Class 
          • IPv6 Flow Label 
          • User-defined Packet Content 
     • Ingress ACL: support up to 6 profiles and 256 rules per profile 
     • Egress ACL: support up to 4 profiles and 128 rules per profile 
     • ACL Statistics 
     • Time-based ACL 
     • CPU interface filtering 

• Security 
     • SSH v2 
     • SSL v1/v2/v3 
     • Port Security for up to 64 MAC addresses per port 
     • Broadcast/Multicast/Unicast Storm Control 
     • Traffic Segmentation 
     • CPU Interface Filtering 
     • ARP Spoofing Prevention 
     • BPDU Attack Protection 
     • DHCP Server Screening 
     • IP-MAC-Port Binding 
          • ARP Packet Inspection 
          • IP Packet Inspection 
          • DHCP Snooping 
          • DHCPv6 and NDP Snooping 
          • Supports up to 500 Address Binding Entries per device 
     • D-Link Safeguard Engine 

• AAA 
     • 802.1X 
          • Port-based Access Control 
          • Host-based Access Control 
          • Dynamic VLAN Assignment 
     • Web-based Access Control (WAC) 
          • Port-based Access Control 
          • Host-based Access Control 
          • Dynamic VLAN Assignment 
     • MAC-based Access Control (MAC) 
          • Port-based Access Control 
          • Host-based Access Control 
          • Dynamic VLAN Assignmen 
     • Japan Web-based Access Control (JWAC) 
          • Host-based Access Control 
     • Microsoft® NAP 
          • Supports 802.1X NAP 
          • Supports DHCP NAP 
     • Guest VLAN 
     • RADIUS and TACACS+ authentication for switch access 
     • 4-Level user account 

• Management 
     • Web-based GUI 
     • Command Line Interface (CLI) 
     • Telnet Server 
     • Telnet Client 
     • TFTP Client 
     • ZModem 
     • SNMP v1/v2c/v3 
     • SNMP Trap 
     • System Log 
     • RMON v1 
          • Supports 1,2,3,9 Groups 
     • RMON v2 
          • Supports ProbeConfig Group 
     • sFlow 
     • LLDP/LLDP-MED 
     • BootP/DHCP Client 
     • DHCP Auto-Configuration 
     • DHCP Relay 
     • DHCP Relay Option 60; 61 
     • DHCP Relay Option 82 
     • DHCP Server 
     • Flash File System 
     • Multiple Images 
     • Multiple Configurations 
     • CPU Monitoring 
     • Debug Command 
     • SNTP 
     • ICMPv6 
     • DHCPv6 Client 
     • DHCPv6 Relay 
     • DHCPv6 Server 
     • Trusted Host 
     • MTU Setting 
     • Microsoft® NLB Support 
     • UDP helper 

• OAM 
     • 802.3ah Ethernet Link OAM 
     • 802.3ah D-Link Extension: D-Link Unidirectional Link Detection (DULD) 
     • IEEE1588 Precision Time Protocol (PTP) 
     • Cable Diagnostics 
     • Connectivity Fault Management (CFM) 
     • ITU-T Y.1731 

• Green 
     • Power saving by Link Status 
     • Power saving by Cable Length 
     • Time-based PoE (DGS-3420-28PC and DGS-3420-52P) 

• MIB/IETF Standards 
     • RFC1213 MIB-II 
     • RFC1493 Bridge MIB 
     • RFC1907 SNMPv2 MIB 
     • RFC2571~2576 SNMP MIB 
     • RFC1271, 2819 RMON MIB 
     • RFC2021 RMON v2 MIB 
     • RFC2665 Ether-like MIB 
     • RFC2668 MAU MIB 
     • RFC2674 802.1p MIB 
     • RFC2233, 2863 IF MIB 
     • RFC2618 RADIUS Authentication Client MIB 
     • RFC1724 RIP v2 MIB 
     • RFC2096 IP Forwarding Table MIB CIDR) 
     • RFC2620 RADIUS Accounting Client MIB 
     • Ping MIB 
     • Traceroute MIB 
     • D-Link Private MIB 
     • RFC768 UDP 
     • RFC783 TFTP 
     • RFC 791 IP 
     • RFC 793 TCP 
     • RFC 826 ARP 
     • RFC854 Telnet 
     • RFC951, 1542 BootP 
     • RFC2068 HTTP 
     • RFC3056, 5214 IPv6 Tunnel 
     • RFC2138 RADIUS 
     • RFC2139 RADIUS Accounting 
     • RFC1492 TACACS 
     • RFC3176 sFlow 
     • RFC2598 DiffServ Expedited Forwarding 

Warranty 
     • Lifetime 

Ordering Information

• DGS-3420-28TC - 20 10/100/1000BASE-T and 4 Combo 10/100/1000BASE-T/SFP and 4 SFP+ 
• DGS-3420-28SC - 20 SFP and 4 Combo 10/100/1000BASE-T/SFP and 4 SFP+ 
• DGS-3420-28PC - 20 10/100/1000BASE-T PoE and 4 Combo 10/100/1000BASE-T PoE/SFP and 4 SFP+ 
• DGS-3420-52T - 48 10/100/1000BASE-T and 4 SFP+ 
• DGS-3420-52P - 48 10/100/1000BASE-T PoE and 4 SFP+ 

Optional Products

Optional Management Software 
• DV-600S - D-View 6.0 Network Management Software Standard Edition 
• DV-600P - D-View 6.0 Network Management Software Professional Edition 

Optional 10 Gbps SFP+ Transceivers 
• DEM-431XT-DD - 10GBASE-SR SFP+ Transceiver 
• DEM-432XT-DD - 10GBASE-LR SFP+ Transceiver 
• DEM-435XT-DD - 10GBASE-LRM SFP+ Transceiver 

Optional 1 Gbps SFP Transceivers 
• DEM-310GT - SFP transceiver, 1000BASE-LX 
• DEM-311GT - SFP transceiver, 1000BASE-SX 
• DEM-211 - SFP transceiver, 100BASE-FX 

Optional 10 Gbps SFP+ Direct Attach Cables 
• DEM-CB100S - 10-GbE SFP+ 1 m Direct Attach Cable 
• DEM-CB300S - 10-GbE SFP+ 1 m Direct Attach Cable 

Optional Redundant Power Supplies 
• DPS-500 - 140-watt redundant power supply 
• DPS-700 - 589-watt redundant power supply 

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