background image

Power Socket

To Power Adapter

RJ-11 ADSL Port

To Phone Line

4 RJ-45

10/100 BASE-TX Ethernet Ports

To Computers, Print Sever, Wireless AP

WHAT THIS PRODUCT DOES

This  4-port  ADSL  modem  router  connects  to  the 
Internet  using  an  integrated  high-speed  ADSL2+ 
interface,  and  allows  multiple  computers,  at 
home  or  the  office,  to  share  high-speed  Internet 
connection.  The  router  provides  firewall  protection 
and QoS for secure and smooth online gaming, voice 
communications  and  downloading  of  photos,  files, 
music and video over the Internet. 4-built-in LAN ports 
provide ready connection to 4 computers through the 
Ethernet cables.

GET HIGH-SPEED ADSL SPEED

Ready  ADSL  connection,  with  up  to  24Mbps 
downstream and 1Mbps upstream, this router allows 
you to do all of your favorite things on the Internet. 
Watch  TV,  listen  to  live  music,  play  games,  and 
experience clear Internet phone calls. Now, smooth 
streaming multimedia and VoIP voice are possible at 
home and in the office through a simple connection 
to this router.

TECHNICAL SPECIFICATIONS

DEVICE INTERFACES

+  RJ-11 ADSL port
+  4 RJ-45 10/100BASE-TX Ethernet ports 

with auto MDI//MDIX

ADSL STANDARDS

+  ADSL standards: 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 standards: ITU-T G.992.3 (G.dmt.

bis) Annex A/L/M ITU-T G.992.4 (G.lite.bis) 

Annex A

+  ADSL2+ standards: ITU-T G.992.5 Annex 

A/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, 1 Mbps 

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 Ethernet (PPPoE)
+   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

+  NAT ALG (optional):
      MSN/AOL/Yahoo Messenger, FTP, 

SNMP, CUSEEME, Real Audio, MIRC, 

SIP, ICQ, games

+  Dynamic Host Configuration Protocol 

(DHCP); DHCP server, client, and relay

+  SNTP, DNS Relay, DDNS proxy and 

IGMP proxy

FIREWALL /ACCESS SECURITY

+  BNAT firewall
+  MAC Filtering
+  Packet Filtering
+  URL Content Filtering (keyword 

filtering)

+  Domain Blocking
+  Stateful Packet Inspection (SPI)
+  Denial of Service prevention (DoS)
+  Intrusion Detection System/Log
+  User Authentication PAP
+  User Authentication CHAP
+  DMZ

VIRTUAL PRIVATE NETWORK

Multiple IPSec/PPTP/L2TP pass-through

CONFIGURATION/MANAGEMENT

+  Easy Installation Wizard
+  Web-based GUI configuration
+  3-level login control for local/remote 

management

+  Firmware upgraded, configuration 

data uploaded and downloaded via 

Web-based GUI

+  TFTP for firmware, configuration files 

and image files upgrade and download

+  TFTP server and client
+  Code Lock to prevent from improper 

firmware upgrade through UI, TFTP, 

and TR-069

+  Telnet/SSH access for configuration 

(optional)

+  Telnet/SSH access for configuration 

(optional)

+  Local access via console (optional)
+  ADSL/ADSL2/ADSL2+ manual 

selection and auto fallback

+  Auto VPI/VCI detection
+  Configuration backup and restore
+  Diagnostics
+  Log & Trace function

+  SNMP v.1 and v.2c with MIB-I and 

MIB-II (optional)

+  TR-069 compliant with ACS (optional)

QUALITY OF SERVICE

+  Traffic Prioritization/Classification
+  Port-based priority
+  802.1p/q (0-7) priority
+  DiffServ-Codepoint IPQos (TOS)
+  Application port-based priority
+  User-defined priority (TCP/UDP/ICMP)
+  4 priority queues per PVC
+  Traffic Shaping
+  Bandwidth Control (64K/128K/256K/

512K)

+  PVC/VLAN
+  IGMP Snooping

POWER

+  Through 12VAC 1.2A external power 

adapter

+  Dying Gasp (optional)
+  Factory reset button

OPERATING TEMPERATURE

 0˚ C to 40˚ C

STORAGE TEMPERATURE

 -20˚ C to 70˚ C

OPERATING HUMIDITY

 -5% to 95% non-condensing

EMISSION (EMC/EMI)

+  FCC Part 15 Class B
+  CE (EN55022/EN55024)

TELECOM

+  CE TBR-21
+  FCC Part 15 B
+  A-Tick

SAFETY

+  CSA International: CSA60950-1, 

EN60950-1, IEC60950-1, UL60950-1

+  CE LVD EN60950-1

OTHERS

 RoHS compliant

DSL-2542B

 HIGH-SPEED ADSL BROADBAND

DSL-2542B

Release 01 (Nov. 2007)

Reset Button

To Factory Default 

Configuration

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