DSL-2540 specification sheet

2-IN-1 DEVICE
The D-Link ADSL2/2+ Modem with 4-Port Ethernet Router (DSL-2540B) is a 2-in-1 device that combines the function of a DSL modem and 4-port 10/100 Ethernet router. The DSL-2540B supports the latest ADSL2/2+ standards to provide higher performance (up to 24Mbps* downstream and 3.5Mbps* upstream) and longer reach from your Internet Service Provider’s (ISP) Digital Subscriber Line Access Multiplexer (DSLAM). You can also create a wired network to share your high-speed Internet connection, documents, photos, music, videos, printers, and Network Attached Storage (NAS).

ACCESS HIGH-SPEED INTERNET
Unlike a dial-up Internet service, a DSL Internet connection is always on so that you do not have to wait to access the Web. Setting up the DSL-2540B is simple since it automatically detects your DSL settings to quickly establish a connection to the Internet. With support for TR-067, compatibility with your ISP’s infrastructure is ensured. This device also supports TR-069, which automatically updates the firmware and other settings when they become available from your ISP.

ADVANCED NETWORKING
The DSL-2540B includes a built-in QoS engine that helps prioritize Internet traffic to enable smooth Internet phone calls (VoIP) and lag-free online gaming. In addition, this device includes Dual Active Firewalls (SPI and NAT) to help protect your network from potential attacks from across the Internet. With a built-in 4-port 10/100 Ethernet router, up to four network-ready computers or devices can simultaneously be connected to the DSL-2540B.

Whether it is for a home user who wants to share high-speed Internet access or for a small office that needs Internet access for conducting essential business activities, the DSL-2540B ADSL2/2+ Modem with 4-Port Ethernet Router (DSL-2540B) is the ideal all-in-one broadband and wired networking solution.

WHAT THIS PRODUCT DOES
The D-Link ADSL2/2+ Modem with 4-Port Ethernet Router (DSL-2540B) combines the function of a high-speed DSL modem and 4-port router. With automatic scanning and detection of your DSL settings, the DSL-2540B quickly sets up your Internet connection. Easily create a wired network and share a high-speed Internet connection while allowing access to shared files, music, photos, and printers with multiple computers.

GREATER COMPATIBILITY
This D-Link ADSL2/2+ Modem with 4-Port Ethernet Router (DSL-2540B) is TR-067 compliant, ensuring that it will work with your Internet Service Provider’s (ISP) infrastructure. It is also TR-069 compliant, which automatically updates the firmware and other settings when they become available from your ISP.

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Specifications and features
Product Code	DSL-2540
Technical Specifications
Data Rates*	• Downstream: Up to 24Mbps • Upstream: Up to 3.5Mbps
Compliance	• TR-067 Interop Performance • TR-069 Compliant with ACS
ADSL Standards	• Multi-mode • Full-rate ANSI T1.413 Issue 2 • ITU-T G.992.1 (G.dmt) Annex A/C/I • ITU-T G.992.2 (G.lite) Annex A/C • ITU-T G.994.1 (G.hs)
ADSL2 Standards	• ITU-T G.992.3 (G.dmt.bis) Annex A/J/K/L/M • ITU-T G.992.4 (G.lite.bis) Annex A
ADSL2+ Standards	• ITU-T G.992.5 Annex A/L/M
ATM/PPP Protocols	• ATM Forum UNI3.1/4.0 PVC - Up to 8 PVCs • PPP over ATM • PPP over Ethernet
Network Protocols and Features	• Ethernet to ADSL Self-Learning Transparent Bridging • Internet Control Message Protocol (ICMP) • IP Static Routing • Routing Information Protocol (RIP, RIPv2) • Network Address Translation (NAT) • Virtual Server, Port Forwarding • NAT ALGs: MSN Messenger, FTP, CUSEEME, H323_Q931 (Netmeeting etc.), H323_RAS, ICQ, etc. • Dynamic Host Configuration Protocol (DHCP) • DNS Relay, DDNS • IGMP Proxy • Simple Network Time Protocol (SNTP)
Firewall	• Built-in NAT • MAC Filtering • Packet Filtering • Stateful Packet Inspection (SPI) • Denial of Service Prevention (DoS) • DMZ
VPN	• Multiple IPSec/PPTP/L2TP Pass-through
QoS	• Port-based Priority • 802.1p (0~7) Priority
Configuration and Management	• Web-based GUI Configuration • ADSL/ADSL2/ADSL2+ Manual Selection and Auto Fallback • Auto VPI/VCI Detection • Configuration Backup and Restore
Ports	• ADSL Port (RJ-11) • 4 10/100 Ethernet Port (RJ-45)
LEDs	• Power • Status • DSL • LAN • Internet
Temperature	• Operating: 32°F to 104°F (0°C to 40°C) • Storage: -4°F to 149°F (-20°C to 65°C)
Humidity	• 5% to 95% Non-condensing
Certifications	• FCC Class B • CE • RoHS • CSA
Dimensions	• Item (WxDxH): 7.6” x 5.9” x 1.3” • Packaging (WxDxH): 10.8” x 8.2” x 2.7”
Weight	• Item: 0.7 lbs • Packaging: 2.1 lbs
Warranty	• 1-Year Limited**
Minimum System Requirements	• Subscription with DSL Internet Service Provider • Computer with a Network Interface Card
Package Contents	• ADSL2/2+ Modem with 4-Port Router • Telephone Cable (RJ-11) • Ethernet Cable (RJ-45) • Power Adapter • Quick Installation Guide • CD-ROM*** with: • Installation Wizard • Product Documentation • Special Offers