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D-Link DSL-520B ADSL2+ Modem Router

The DSL-520B ADSL2+ modem router is an affordable high-performance ADSL device for home and the small office. With integrated ADSL2/2+ supporting up to 24Mbps download speed, firewall protection, Quality of Service (QoS) and 1-port switch, this router provides all the essentials that a home or small office needs to establish a secure and high-speed remote link to the outside world. Security features prevent unauthorized access to the home and office network from Internet intruders. The router provides firewall security using Stateful Packet Inspection (SPI) and Denial of Service (DoS) attack protection. SPI inspects the contents of all incoming packet headers before deciding what packets are allowed to pass through. Router access control is provided with packet filtering based on port and source/destination MAC/IP addresses.


  • Total Number of Ports:   2
  • Number of Network (RJ-45) Ports:   1
  • Number of RJ-11 Ports:   1

Media & Performance

  • Carrier Supported:   DSL
  • Broadband Transmission Speed:   24 Mbit/s
  • Broadband Transmission Technology:   ADSL
  • Broadband Transmission Standard:   G.dmt

Network & Communication

  • Network Technology:   10/100Base-TX
  • Ethernet Technology:   Fast Ethernet

Management & Protocols

  • Security Features:  
  • Stateful Packet Inspection
  • Denial of Service
  • Packet filtering
  • MAC Filtering
  • Intrusion Detection
  • IPSec
  • PPTP
  • L2TP
  • NAT
  • CHAP

Power Description

  • Input Voltage:   5 V DC

Physical Characteristics

  • Height:   1.26" (32 mm)
  • Width:   4.13" (105 mm)
  • Depth:   4.72" (120 mm)


  • Additional Information:  
  • Simple Network Time Protocol
  • Logical Link Control (LLC) encapsulation
  • Bridged and routed Ethernet encapsulation
  • MAC Encapsulated Routing RFC 1483 MER

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