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TECHNICAL SPECIFICATIONS

DEVICE INTERFACES

+ RJ-11 ADSL port

+ 4 RJ-45 10/100BASE-TX Ethernet ports with auto MDI/ MDIX

ADSL STANDARDS

+ ADSL : Multi-mode, ANSI T1.413 Issue 2, ITU-T G.992.1 

(G.dmt) Annex A, ITU-T G.992.2 (G.lite) Annex A,

+ ITU-T G.994.1 (G.hs)

+ ADSL2: ITU-T G.992.3 (G.dmt.bis) Annex A/L/M ITU-T G.992.4 

(G.lite.bis) Annex A

+ ADSL2+: ITU-T G.992.5 Annex A/L/M

ADSL DATA RATES

+ G.dmt: 8Mbps downstream, 832Kbps upstream

+ G.lite: 1.5Mbps downstream, 512Kbps upstream

+ ADSL2: 12Mbps downstream, 1Mbps upstream

+ ADSL2+: 24Mbps downstream, 3.5Mbps upstream

ATM & PPP PROTOCOLS

+ ATM Adaption Layer type 5 (AAL5)

+ Bridged or routed Ethernet encapsulation

+ VC and LLC based multiplexing

+ MAC Encapsulated Routing

+ ATM Forum UNI3.1/4.0 PVC

+ ATM Cell Format ITU-T Rec. I.361

+ PPP over ATM (RFC 2364)

+ PPP over Ethernet (PPPoE)

+ PPP Link Control Protocol (LCP)

+ Internet Protocol Control Protocol (IPCP)

+ PPP Authentication Protocol (PAP)

+ PPP Challenge Handshake

+ Authentication Protocol (CHAP)

+ Microsoft PPP CHAP extensions

ROUTER FEATURES & NETWORK PROTOCOLS

+ Ethernet to ADSL Self-Learning Transparent Bridging

+ Internet Control Message Protocol (ICMP)

+ Network Address Translation (NAT), IP Static Routing, 

Routing Information Protocol (RIPv1, RIPv2)

+ Virtual Server, Port Forwarding

+ NAT ALGs: MSN/AOL/Yahoo Messenger, FTP, CUSEEME, 

Real Audio, MIRC, SIP, ICQ, games, SNMP

+ Dynamic Host Confi guration Protocol (DHCP); DHCP server, 

client, and relay

+ SNTP, DNS Relay, DDNS proxy and IGMP proxy (v1/v2/v3)

FIREWALL /ACCESS SECURITY

+ Built-in NAT fi rewall

+ MAC Filtering

+ Packet Filtering

+ Stateful Packet Inspection (SPI)

+ Denial of Service prevention (DoS)

+ Intrusion Detection and Prevention System/Log

+ User Authentication PAP

+ User Authentication CHAP

+ DMZ

VIRTUAL PRIVATE NETWORK

+ Multiple IPSec/PPTP/L2TP pass-through

DSL-2740B

WHAT THIS PRODUCT DOES

This ADSL2+ Modem with Wireless N300 Router 
connects a group of users to the Internet, allowing 
multiple computers at home or offi ce to share an 
integrated high-speed ADSL2+ interface. It provides 
high-performance wireless N access for wireless 
networked computers, has 4 built-in Ethernet ports, 
fi rewall protection and QoS for smooth and secure 
download/upload of photos, fi les, music, video and 
e-mail over the Internet.

GET HIGH ADSL AND WIRELESS 

PERFORMANCE

With your ADSL connection of up to 24Mbps 
downstream

1

 and 3.5Mbps upstream

1

 you can 

watch TV, listen to live music, broadcast on the 
Internet, and experience clear Internet phone calls 
without any lag. Built-in high performance Wireless 
N

2

 means that you don’t have to compromise 

high-speed ADSL transmission with wireless speed 
constraints. Smooth streaming multimedia and VoIP 
voice are now possible anywhere at home or in the 
offi ce. 

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