D-Link DSL-302T User manual

DSL-302T
ADSLModem
User s Manual
2nd Edition (October 2004)
651DSL302T02

DSL-302TDSL Modem User s Guide
ii
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept anyinterference received,
including interference that may cause undesired operation.
This equipment hasbeen testedand found to complywiththe limits for aClass Bdigital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This generates, uses and can radiate radio frequencyenergy and, if not installed and used
in accordance withthe instructions, maycause harmful interference to radio communications. However, there is
no guarantee that interferencewill not occur in aparticular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined byturning equipment off and on, the user
is encouraged to tryto correct the interference byone or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different fromthat to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technicianfor help.
CE MarkWarning
This is aClass Bproduct. In adomestic environment, this product maycause radio interference inwhich case
the user may be required to take adequate measures.

DSL-302TADSL Modem User s Guide
iii
Warranty and Registration for all Countries and
Regions Except USA
Wichtige Sicherheitshinweise
1. Bitte lesen Sie sich diese Hinweise sorgf ltig durch.
2. Heben Sie diese Anleitung für den sp tern Gebrauch auf.
3. Vor jedem Reinigenist das Ger tvom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten
dient ein angefeuchtetes Tuch zur Reinigung.
4. Um eine Besch digung des Ger teszu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.
5. Das Ger t is vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Ger tesistauf sichern Stand zu achten. Ein Kippenoder Fallen könnte Verletzungenhervorrufen.
Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers.
7. Die Belüftungsöffnungendienen zur Luftzirkulation die das Ger tvor Überhitzung schützt. SorgenSie dafür, daßdiese
Öffnungen nicht abgedeckt werden.
8. Beachten Sie beim Anschlußan das Stromnetz die Anschlußwerte.
9. Die Netzanschlußsteckdose mußaus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt haben.
10. Verlegen Sie die Netzanschlußleitung so, daßniemand darüber fallen kann. Es sollete auchnichts auf der Leitung abgestellt
werden.
11. Alle Hinweise und Warnungen die sich am Ger ten befinden sind zu beachten.
12. Wird das Ger t über einenl ngerenZeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer
Überspannung eine Besch digung vermieden.
13. Durchdie Lüftungsöffnungendürfen niemals Gegenst ndeoder Flüssigkeitenin das Ger tgelangen.Dies könnte einen
Brand bzw. Elektrischen Schlag auslösen.
14. Öffnen Sie niemals das Ger t. Das Ger tdarf aus Gründender elektrischen Sicherheitnur von authorisiertem
Servicepersonal geöffnet werden.
15. Wenn folgendeSituationenauftreten istdas Ger tvom Stromnetz zutrennen und von einer qualifizierten Servicestelle zu
überprüfen:
a. Netzkabel oder Netzstecker sint besch digt.
b. Flüssigkeit ist in das Ger t eingedrungen.
c. Das Ger t war Feuchtigkeit ausgesetzt.
d. Wenn das Ger tnicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung
keine Verbesserung erzielen.
e. Das Ger t ist gefallen und/oder das Geh use ist besch digt.
f. Wenn das Ger t deutliche Anzeichen eines Defektes aufweist.
16. Bei Reparaturendürfen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile verwendetwerden. Der Einsatz von
ungeeigneten Ersatzteilen kann eine weitere Besch digung hervorrufen.
17. WendenSie sich mit allenFragendie Service und Repartur betreffen an Ihren Servicepartner. Somit stellenSie die
Betriebssicherheit des Ger tes sicher.
18. Zum Netzanschlußdieses Ger tesist eine geprüfte Leitung zu verwenden, Füreinen Nennstrombis 6A und einem
Ger tegewicht grőß er 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.
WARRANTIES EXCLUSIVE
IF THE D-LINK PRODUCT DOES NOT OPERATEAS WARRANTED ABOVE, THE CUSTOMER'S SOLEREMEDY SHALL BE, AT D-
LINK'S OPTION, REPAIR OR REPLACEMENT. THE FOREGOINGWARRANTIES AND REMEDIES AREEXCLUSIVEANDAREIN
LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, EITHER IN FACT OR BY OPERATIONOF LAW, STATUTORY OR
OTHERWISE, INCLUDINGWARRANTIES OF MERCHANTABILITY ANDFITNESS FOR APARTICULAR PURPOSE. D-LINK NEITHER
ASSUMES NOR AUTHORIZES ANY OTHER PERSON TOASSUME FORIT ANYOTHER LIABILITY IN CONNECTION WITH THE SALE,
INSTALLATION MAINTENANCEOR USE OF D-LINK'S PRODUCTS.
D-LINK SHALL NOT BELIABLE UNDER THIS WARRANTY IF ITS TESTING ANDEXAMINATION DISCLOSE THAT THE ALLEGED
DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER'S OR ANY THIRD PERSON'S MISUSE,
NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTSTO REPAIR, OR ANYOTHER CAUSE BEYOND
THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING OR OTHER HAZARD.

DSL-302TDSL Modem User s Guide
iv
LIMITATION OF LIABILITY
IN NO EVENT WILL D-LINK BELIABLEFOR ANY DAMAGES, INCLUDING LOSS OF DATA, LOSS OF PROFITS, COST OF COVER
OR OTHER INCIDENTAL, CONSEQUENTIAL OR INDIRECTDAMAGES ARISINGOUT THE INSTALLATION, MAINTENANCE, USE,
PERFORMANCE, FAILUREOR INTERRUPTION OF AD- LINK PRODUCT, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY.
THIS LIMITATION WILL APPLY EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
IF YOU PURCHASED AD-LINK PRODUCT IN THE UNITED STATES, SOME STATES DO NOT ALLOW THE LIMITATION OR
EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVELIMITATION MAY NOT APPLY TO
YOU.
LimitedWarranty
Hardware:
D-Link warrants each of its hardware products tobe free from defects in workmanship and materials under normal use and service
for aperiod commencing on the date of purchasefrom D-Link or its Authorized Reseller and extending for the length of time
stipulated by the Authorized Reseller or D-Link Branch Office nearest to the place of purchase.
This Warranty applies on the condition that the product Registration Card is filled out and returned to a D-Link office within ninety
(90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card.
If the product proves defectivewithin the applicable warranty period, D-Link will provide repair or replacement of the product.
D-Link shall havethe sole discretion whether to repair or replace,and replacement productmay be newor reconditioned.
Replacement product shall be of equivalent or better specifications, relativeto the defectiveproduct, but need not be identical. Any
product or part repaired by D-Linkpursuant to this warranty shall haveawarranty period of not lessthan 90 days, from date of
suchrepair, irrespectiveof any earlier expiration of originalwarranty period. When D-Link provides replacement, then the defective
product becomes the property of D-Link.
Warranty service may beobtainedby contacting aD-Link office within the applicable warrantyperiod,and requesting aReturn
MaterialAuthorization (RMA) number. If aRegistration Card for the product in question has not been returned toD-Link, thena
proof of purchase (suchas acopy of the dated purchase invoice)must be provided. If Purchaser's circumstances require special
handling of warranty correction, then at the time of requesting RMA number, Purchaser may also proposespecialprocedure as may
be suitable to the case.
After an RMA number is issued, the defectiveproduct mustbe packaged securely in the original or other suitable shipping package
to ensure that it will not be damaged in transit, and the RMA numbermust be prominently marked on the outside of the package.
The package must be mailed or otherwise shipped to D-Link with all costs of mailing/shipping/insurance prepaid. D-Link shall
never be responsible for any software, firmware, information, or memory data of Purchaser contained in, stored on, or integrated
with any product returned to D-Link pursuant to this warranty.
Any package returned toD-Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser's expense,
and D-Link reserves the right in such a case to levy a reasonable handling charge in addition mailing or shipping costs.
Software:
Warranty service for software productsmay be obtained by contacting aD-Link office within the applicable warranty period. Alist
of D-Link offices is providedat the back of this manual, together withacopy of the Registration Card. If a Registration Card for the
product in question has not been returned to a D-Link office, then a proof of purchase (such as a copy of the dated purchase invoice)
must be provided whenrequesting warranty service. The term "purchase" in this software warrantyrefers to the purchase
transaction and resulting license to use such software.
D-Link warrants that itssoftware products will perform in substantial conformance with the applicable productdocumentation
provided by D-Link with suchsoftware product, for aperiod of ninety (90)days from the date of purchase from D-Link or its
Authorized Reseller. D-Link warrants the magnetic media, on whichD-Link provides its software product, againstfailure during
the same warranty period. This warranty applies to purchasedsoftware, and to replacement software provided by D-Link pursuant
to this warranty, but shall not apply to any update or replacement which may be provided for download via the Internet, or toany
update which may otherwise be provided free of charge.
D-Link's sole obligation under this software warranty shall be to replaceany defectivesoftware product with product which
substantially conforms to D-Link's applicable product documentation. Purchaser assumesresponsibility for the selection of
appropriate application and system/platform software and associated referencematerials. D-Link makes no warranty that its
software products will work in combination with any hardware, or any application or system/platform software product provided by
any third party, excepting only suchproductsas are expressly represented, in D-Link'sapplicable product documentation as being
compatible. D-Link's obligation under this warrantyshall be areasonable effort to provide compatibility,but D-Link shall haveno
obligation toprovide compatibilitywhenthere is fault in the third-party hardware or software. D-Linkmakes no warranty that
operation of its software productswill be uninterrupted or absolutely error-free, and no warranty that all defectsin the software
product, within or without the scope of D-Link's applicable product documentation, will be corrected.

DSL-302TADSL Modem User s Guide
v
Warranty and Registration Information for USAOnly
Subject to the terms and conditions set forth herein, D-Link Systems,Inc. (“D-Link”)provides this Limitedwarranty for its product
only to the person or entity that originally purchased the product from:
l D-Link or its authorized reseller or distributor and
l Products purchased and delivered within the fifty states of the UnitedStates, the District of Columbia, U.S. Possessions
or Protectorates, and U.S. Military Installations, addresses with an APO or FPO.
Limited Warranty: D-Link warrants that the hardware portion of the D-Link products described below will be free from material
defects in workmanship and materials from the date of originalretail purchase of the product, for the period set forth below
applicable to the product type (“Warranty Period”), except as otherwisestated herein.
5-Year Limited Warranty for the Product(s) is defined as follows:
l Hardware (excluding power supplies and fans) Five (5) Years
l Power Supplies and Fans Three (3) Year
l Spare parts and spare kits Ninety (90) days
D-Link’ssole obligation shall be torepair or replacethe defectiveHardware during the Warranty Period atno charge tothe original
owner or to refund at D-Link’ssole discretion. Suchrepair or replacement will be renderedby D-Linkat an Authorized D-Link
Service Office. The replacement Hardware need not be newor have an identical make, model or part. D-Link may in its sole
discretion replace the defectiveHardware (or any part thereof) withany reconditioned product that D-Link reasonably determinesis
substantially equivalent (or superior) in all material respectstothe defectiveHardware. Repaired or replacement Hardware will be
warranted for the remainder of the original Warranty Period from the date of originalretail purchase. If amaterial defect is
incapable of correction, or if D-Link determines in itssole discretion that it is not practical to repair or replace the defective
Hardware, the price paid bythe original purchaser for the defectiveHardware will be refunded byD-Link upon return to D-Link of
the defectiveHardware. All Hardware (or part thereof) that is replaced by D-Link, or for which the purchase price is refunded, shall
become the property of D-Link upon replacement or refund.
Limited SoftwareWarranty: D-Link warrants that the software portion of the product (“Software”)will substantially conform to
D-Link’sthencurrent functionalspecifications for the Software, as set forthin the applicable documentation, from the date of
originalretail purchase of the Software for aperiod of ninety(90)days (“Warranty Period”), provided that the Software is properly
installed on approved hardware and operated as contemplatedin itsdocumentation. D-Link further warrants that, during the
Warranty Period, the magnetic media on which D-Link delivers the Software will be free of physical defects. D-Link’ssole obligation
shall be to replace the non-conforming Software (or defectivemedia) with software that substantially conforms to D-Link’s
functional specifications for the Software or to refund at D-Link’ssole discretion. Except as otherwiseagreed by D-Link in writing,
the replacement Software isprovided only tothe originallicensee, and is subject tothe terms and conditions of the licensegranted
by D-Link for the Software. Software will be warranted for the remainder of the original Warranty Period from the date or original
retail purchase. If amaterial non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not
practical toreplace the non-conforming Software, the pricepaid by the original licenseefor the non-conforming Software will be
refundedby D-Link; provided thatthe non-conforming Software (and all copies thereof) is first returned to D-Link. The license
granted respecting any Software forwhich a refund is given automatically terminates.
Non-Applicability of Warranty: The Limited Warranty provided hereunder for hardware and software of D-Link's products, will
not be applied to and doesnot cover any product purchased through the inventory clearanceor liquidation sale or other sales in
which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to theproduct and in that case,
the product is being sold "As-Is" without any warrantywhatsoever including, without limitation, the Limited Warranty as described
herein, notwithstanding anything stated herein to the contrary.
Submitting AClaim:Any claim under this limited warranty must be submitted in writing before the end of the Warranty Period to
an Authorized D-Link Service Office.
l The customer must submit as part of the claim awritten description of the Hardware defect or Software nonconformance
in sufficient detail to allow D-Link to confirm the same.
l The original product owner must obtain aReturn MaterialAuthorization (“RMA”)number from the Authorized D-Link
Service Office and, if requested, provide written proof of purchase of the product (suchas acopy of the dated purchase
invoice for the product) before the warranty service is provided.
l After an RMA number is issued, the defectiveproduct must be packaged securely in the original orother suitable
shipping package to ensure that it will not be damaged in transit, andthe RMA number mustbe prominently marked on
the outside of the package. Do not include any manuals or accessories in the shipping package. D-Link will only replace
the defective portion of the Product and will not ship back any accessories.
l The customer is responsible for all shipping chargestoD-Link. No Charge on Delivery (“COD”)is allowed. Products sent
COD will either be rejected byD-Link or become the property of D-Link. Products should befully insured by the
customer and shipped toD-Link Systems, Inc., 17575 Mt. Herrmann, Fountain Valley, CA 92708. D-Link will not be
held responsible for any packagesthat are lost in transit to D-Link. The repaired or replaced packages will be shipped
via UPS Ground or any common carrier selected byD-Link, withshipping chargesprepaid. Expedited shipping is
available if shipping charges are prepaid by the customer.
D-Link may reject or return any product that is not packaged and shipped in strict compliancewiththe foregoing requirements, or
for which anRMA number is not visible from the outside of the package. The product owner agrees topay D-Link’sreasonable
handling and return shipping charges for any product that is not packaged and shippedin accordance with the foregoing
requirements, or that is determinedby D-Link not to be defective or non-conforming.
What Is Not Covered: This limitedwarranty providedby D-Link does not cover: Products, if in D-Link’sjudgment, havebeen
subjected toabuse, accident, alteration, modification, tampering, negligence, misuse, faultyinstallation, lack of reasonable care,
repair or service in any way that is not contemplated in the documentation for the product, or if the modelor serial number has

DSL-302TDSL Modem User s Guide
vi
been altered, tampered with, defaced or removed; Initial installation, installation and removal of the product for repair, and shipping
costs; Operational adjustments covered in the operating manual for the product, and normal maintenance; Damage that occurs in
shipment, due to act of God, failures due to power surge, and cosmetic damage; Any hardware, software, firmware or other
products or services provided by anyoneother than D-Link; Productsthat havebeenpurchased from inventory clearanceor
liquidation salesor other salesin which D-Link, the sellers, or the liquidators expressly disclaimtheir warranty obligation
pertaining to the product. Repair by anyone other than D-Link or an Authorized D-Link Service Office will void this Warranty.
Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT ISPROVIDED
“AS-IS”WITHOUT ANYWARRANTY OF ANYKIND WHATSOEVERINCLUDING, WITHOUT LIMITATION, ANY WARRANTYOF
MERCHANTABILITY, FITNESS FOR APARTICULAR PURPOSE ANDNON-INFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT
BE DISCLAIMED IN ANY TERRITORY WHEREAPRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE
LIMITED TONINETY (90) DAYS. EXCEPTAS EXPRESSLYCOVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE
ENTIRERISK AS TOTHE QUALITY, SELECTION ANDPERFORMANCE OF THE PRODUCT IS WITHTHE PURCHASER OF THE
PRODUCT.
Limitationof Liability: TOTHE MAXIMUM EXTENT PERMITTED BY LAW, D-LINK IS NOT LIABLE UNDER ANYCONTRACT,
NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY LOSS OF USE OF THE PRODUCT,
INCONVENIENCEOR DAMAGES OF ANYCHARACTER, WHETHER DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
(INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT, WORK STOPPAGE,
COMPUTER FAILUREOR MALFUNCTION, FAILUREOF OTHER EQUIPMENTOR COMPUTER PROGRAMS TOWHICHD-LINK’S
PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATACONTAINED IN, STORED ON, ORINTEGRATED WITH ANY
PRODUCT RETURNED TOD-LINKFOR WARRANTY SERVICE) RESULTING FROM THE USE OF THE PRODUCT, RELATINGTO
WARRANTY SERVICE, OR ARISINGOUT OF ANYBREACH OF THISLIMITED WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCHDAMAGES. THE SOLEREMEDY FOR ABREACH OF THE FOREGOINGLIMITED WARRANTY IS
REPAIR, REPLACEMENT OR REFUND OF THE DEFECTIVEOR NON-CONFORMING PRODUCT. THE MAXIMUM LIABILITY OF D-
LINK UNDER THIS WARRANTYIS LIMITED TO THE PURCHASE PRICE OF THE PRODUCTCOVERED BY THE WARRANTY. THE
FOREGOINGEXPRESS WRITTENWARRANTIES AND REMEDIES ARE EXCLUSIVE ANDAREINLIEU OF ANYOTHER
WARRANTIES OR REMEDIES, EXPRESS, IMPLIED OR STATUTORY.
Governing Law:This Limited Warranty shall begoverned bythe laws of the state of California. Some states donot allow exclusion
or limitation of incidentalor consequential damages, or limitations on how long an impliedwarranty lasts, so the foregoing
limitations and exclusions may notapply. This limited warranty provides specific legal rights and the product owner may alsohave
other rights which vary from state to state.

TABLE OF CONTENTS
About This User s Guide...............................................................................................................................ix
Before You Start............................................................................................................................................ix
Information Required for Installation..............................................................................................................x
Installing the USB Driver..............................................................................................................................xii
INTRODUCTION........................................................................................................1
ModemDescription and Operation.................................................................................................................1
ModemFeatures..............................................................................................................................................3
Standards Compatibilityand Compliance.......................................................................................................4
Front Panel Display.........................................................................................................................................5
Rear Panel Connections..................................................................................................................................6
HARDWARE INSTALLATION...................................................................................7
Power on Modem............................................................................................................................................7
FactoryReset Button.......................................................................................................................................7
Network Connections......................................................................................................................................8
CONFIGURING THE MODEM FOR THE FIRST TIME............................................10
Configuring IPSettings on Your Computer..................................................................................................10
Access the Configuration Manager..................................................................................................15
Home.....................................................................................................................................................16
Configure the Modem...................................................................................................................................17
Setup.....................................................................................................................................................18
Configure a NewConnection........................................................................................................................19
WEB-BASED MANAGEMENT................................................................................25
Accessing the Web Manager.........................................................................................................................25
DHCPConfiguration.....................................................................................................................................26
Management IP.............................................................................................................................................27
Tools.....................................................................................................................................................28
Changing the User Name and Password.......................................................................................................28
SystemCommands........................................................................................................................................28
Remote Log...................................................................................................................................................30
User Management.........................................................................................................................................31
Update Gateway............................................................................................................................................32
Ping Test.......................................................................................................................................................33

Status....................................................................................................................................................34
Network Statistics.........................................................................................................................................35
Connection Status.........................................................................................................................................36
DHCPClients................................................................................................................................................37
ModemStatus...............................................................................................................................................38
Product Info..................................................................................................................................................39
SystemLog...................................................................................................................................................40
Help.......................................................................................................................................................41
TECHNICAL SPECIFICATIONS..............................................................................42
IP ADDRESS SETUP...............................................................................................44
IPCONCEPTS.........................................................................................................46
MICROFILTERS AND SPLITTERS.........................................................................49

DSL-302TDSL Modem User s Guide
ix
About This User sGuide
This user sguide provides instructions on howto install the DSL-302T ADSLModemand use it to connecta
computer or Ethernet Local Area Network (LAN) to the Internet.
If you are using acomputer with afunctioning Ethernet port or an available USB port, the quickest and easiest
wayto set up the DSL-302T isto insert the Installation CD into the CD-ROM drive of your computer and follow
the instructions provided in the QuickInstallation Guide.Alternatively, youcan click the “Install DSL-302T”
link on the initial pop-up menu thatappears shortlyafter inserting the CD and followthe instructions as theyare
presented. If the menu fails toappear, explore the CD and find the file “dsl302t.exe”and double-clickit to
launch the installation software.
Before You Start
Please read and make sure you understand all the prerequisites for proper installation of your newModem.Have
all the necessary information and equipment on hand before beginning the installation.
Installation Overview
The procedure to install the Modemcan be described in general terms in the following steps:
1. Gather information and equipment needed to install the device. Before you power on the device or
connect it to your computer, make sure youhave all the necessaryinformation, cables, power adapter
and anyother required equipment listed.
2. Installthe hardware, that is, connectthecables (Ethernetand telephone) to the device and connect the
power adapter.
3. Checkthe IPsettings on yourcomputer and change themifnecessaryso the computer can access the
web-based software built into the Modem.
4. Use the web-based management software to configure the device to suit the requirements ofyour ADSL
account.

DSL-302TDSL Modem User s Guide
x
Information Required for Installation
Information you will need from your ADSL service provider:
Username
This is the Username used to log on to your ADSL
service provider s network. It is commonlyin the form −
[email protected]. Your ADSL service provider uses this
to identifyyour account.
Record info here
Password
This is the Password used, in conjunctionwith the
Username above, tolog on to your ADSL service
provider s network.This is used toverifythe identityof
your account.
Connection Protocol
This is the method your ADSL service provider uses to
send and receive data between the Internet and your
computer. Your Modemsupports the following
connection protocols: PPPoE, PPPoA, CLIP (IPoA) and
Bridge.
SecurityProtocol
This is the method your ADSL service provider will use
to verifyyour Username and Password whenyou log
on totheir network. Your Modemsupports the PAP and
CHAP protocols.
VPI
This is the Virtual Path Identifier (VPI). It is used in
conjunctionwith the Virtual Channel Identifier (VCI)
below, to identifythe data path between your ADSL
service provider s networkand your computer.
VCI
This is the Virtual Channel Identifier (VCI). It is used in
conjunctionwith the VPIaboveto identifythe data path
between your ADSL service providers networkand
your computer.
Information you will need to change settings on the DSL-302TModem:
Username
This is the Username needed access the Modem s
management interface. When you attempt to connect to
the device through a web browser youwill be prompted
to enter this Username. The default Username for the
Modemis admin. This maybe changed bythe user.
Record info here
Password
This is the Password you will beprompted to enter
when you access the Modem smanagement interface.
The default Password is admin. This maybechanged
bythe user.
LANIP addresses for
the DSL-302T
This is the IP address youwill enter into the Address
field of your web browser toaccess the Modem s
configuration graphical user interface (GUI) using a
web browser. The default IP address is 192.168.1.1
and it is referred to as the “Management IP”address in
this User sManual. This maybe changed tosuit anyIP
address scheme the user desires. This address will be
the base IP address used for DHCP serviceon the LAN
when DHCP is enabled.
LANSubnet Mask for
the DSL-302T
This is the subnet maskused bythe DSL-302T, and
will be usedthroughout your LAN. The default subnet
maskis 255.255.255.0. This can be changed later.

DSL-302TDSL Modem User s Guide
xi
Information you will need about your Ethernet LAN or computer:
Ethernet NIC
If your computer has anEthernet NIC, you can
connect the DSL-302Tto this Ethernetport usingan
Ethernet cable.You canalso use the Ethernet port on
the DSL-302Tto connect toother Ethernet devices,
such as a Wireless Access Point.
Record info here
USB port If your computer has anavailable USB port, you can connect the DSL-302Tto this USB port using a USB
cable.
DHCP Client status
Your DSL-302TADSL Modemis configured, by
default,to be aDHCP server. This means that it can
assign an IP address, subnet mask, and a default
gatewayaddress to computers on your LAN. The
default rangeofIP addresses the DSL-302Twill
assign arefrom 192.168.1.2 to 192.168.1.254.Your
computer (or computers) needs tobe configuredto
Obtain an IP address automatically (that is, they
needto be configured as DHCP clients.)
It is recommended that your collect and record this information here, or in someother secure place, in case you
have to re-configure your ADSL connection in the future.
Once you have the above information, you are readyto setup and configure your DSL-302T ADSL Modem.
Note
The Modem may be resetto its factory defaultsettingsby performing a Restore
settings operation within the management interface (see below). If you cannot gain
access to the management interface, youmay opt to use the Reset button on the
rear panel of the device (see FactoryReset Button below).

DSL-302TDSL Modem User s Guide
xii
Installing the USBDriver
The CD-ROM shipped with the Modemcontains the USB driver software.
1. Insert the DSL-302TInstallation CD-ROM into the CD-ROM drive.
2. Connect the USB cable to the device. Withinafewseconds youshould see the “Found NewHardware”
message window, followed shortlyafter bythe opening “Found NewHardware Wizard”window:
3. If you do not see the auto-run windowpictured above, explore the CD and double-clickthe inf file
DLink_302t.inf.
4. Click the Next button.
5. Click the Next button.

DSL-302TDSL Modem User s Guide
xiii
6. Check “CD-ROM drives"(as shownabove) if youare using the USB driver included on the CD-ROM
that came withyour Modem.Click Next.
7. Connect the Ethernet cable if youhave not done so.
8. Connect the ADSLcable ifyou have not done so. Remember that most ADSLinstallations require a
filter to divide the ADSL signal fromthe Plain-Old Telephone (POTS) signal.
9. You can restart your computer nowbyclicking the Finish button. The computer will be able to connect
to the Modemthrough the USB port after restarting.

DSL-302TADSL Modem User s Guide
1
1
Introduction
This section provides a brief description of the Modem, its associated technologies and a list of Modemfeatures.
Modem Description and Operation
The DSL-302TADSLModemis designed to provide asimple and cost-effective ADSLInternet connection for
individual computersthrough either the Ethernet or USB ports, or use it to bridge your Ethernet LANto the
Internet. The DSL-302T combines the benefits of high-speed ADSLtechnologyand LANIP management in one
compact and convenient package. ADSLtechnologyenablesmanyinteractive multi-mediaapplications such as
video conferencing and collaborative computing.
The Modemis easy to installand use. The DSL-302Tconnects to single computer or anEthernet LAN via a
standard Ethernet interface. Asingle computer mayalso be connected through the USB port. The ADSL
connectionis made using ordinarytwisted-pair telephone line with standard connectors.Multiple PCs can be
networked and connected to the Internet using asingle Wide Area Network(WAN) interface and singleglobal
IPaddress.
What is ADSL?
Asymmetric Digital Subscriber Line (ADSL) is anaccess technology that utilizes ordinarycopper telephone
lines to enable broadband high-speed digital data transmissionand interactive multimedia applications for
business and residential customers.
ADSLgreatlyincreasesthe signal carrying capacityofcopper telephone lines without interfering with regular
telephone services. For the ADSLuser, this means fasterdownloads and more reliable connectivity. ADSL
devices make itpossible to enjoybenefits such as high-speed Internet access without experiencing any loss of
qualityor disruption of voice/fax telephone capabilities.
ADSLprovides adedicated service over asingle telephone line operating at speeds ofup to8Mbps downstream
and up to 640 Kbps upstream,depending on local telephoneline conditions. Asecure point-to-point connection
is established between the user and the central office of the service provider.
D-Link ADSL devices incorporate the recommendations of the ADSLForumregarding framing, data format,
and upper layer protocols.
LowPass Filters
Since ADSLand telephone services share the samecopper wiring to carrytheir respective signals, afiltering
mechanismmaybe necessaryto avoid mutual interference.Alowpass filter device can be installed for each
telephone that shares the line with the ADSLline. These filters are easyto install passive devices that connect to
the ADSLdevice and/or telephone using standard telephone cable. Ask your service provider for more
information about the use of lowpass filters with your installation.
Operating Systems
The DSL-302Tuses anHTML-based web interfacefor setup and management. The webconfiguration manager
maybe accessed using anyoperating systemcapable of running web browser software, including Windows98
SE, Windows ME, Windows2000, and Windows XP.

DSL-302TADSL Modem User s Guide
2
Web Browser
Anycommonweb browser can be used to configure theModemusing the web configuration management
software. The programisdesigned to work best withmore recentlyreleased browserssuch as Opera, Microsoft
Internet Explorer®version 5.0, Netscape Navigator®version 4.7, or later versions. The web browser must have
JavaScript enabled. JavaScript is enabled bydefaulton manybrowsers. Make sure JavaScript hasnot been
disabled byother software (such as virus protection or web user securitypackages) that maybe running on your
computer.
Ethernet Port (NIC Adapter)
Anycomputer that usesthe Modemmust be ableto connect to itthrough the Ethernetport on the Modem.This
connectionis an Ethernet connection and therefore requires that your computer be equipped withan Ethernet
port as well. Mostnotebook computers arenowsold with an Ethernetport already installed. Likewise, most fully
assembled desktop computers comewithanEthernetNIC adapter as standard equipment. If your computer does
not have anEthernetport, you must install an Ethernet NIC adapter before you can use the Modem.If you must
install an adapter, followthe installation instructions that come with the Ethernet NIC adapter.
Additional Software
It maybe necessaryto install software on your computerthat enables the computer to access the Internet.
Additionalsoftware must be installed if youare using the device asimple bridge. For abridged connection, the
informationneeded to makeand maintain the Internetconnection isstored on another computer or gateway
device, not in the Modemitself.
If your ADSLservice is delivered through aPPPoE, PPPoAor IPoAconnection, the informationneeded to
establish and maintainthe Internet connection can be stored in the Modem.Inthis case,it is not necessaryto
install software on your computer. It mayhowever be necessaryto change somesettings inthe device, including
account information used to identifyand verifythe connection.
Allconnections to the Internet require aunique global IP address. For bridged connections, the global IP settings
must reside in aTCP/IP enabled device on the LANside of the bridge, suchas aPC, aserver, agatewaydevice
suchas aModemor similarfirewall hardware. The IPaddress can be assigned in anumber of ways. Your
network service provider will give you instructions about anyadditionalconnection software or NIC
configuration that maybe required.

DSL-302TADSL Modem User s Guide
3
Modem Features
The DSL-302TADSL Modemutilizesthe latest ADSLenhancements to provide areliable Internet portal
suitable for most small to medium sized offices. DSL-302Tadvantages include:
• PPP (Point-to-Point Protocol) Security The DSL-302TADSLModemsupportsPAP(Password
Authentication Protocol) and CHAP(Challenge Handshake Authentication Protocol) for PPP connections.
• DHCP Support Dynamic Host Configuration Protocol automaticallyand dynamicallyassigns al LANIP
settings to each host on your network. This eliminates the need to reconfigure everyhost whenever changes
in network topologyoccur..
• TCP/IP (Transfer Control Protocol/Internet Protocol) The DSL-302T supports TCP/IPprotocol, the
language used for the Internet.It is compatible with access servers manufactured bymajor vendors.
• ATM (Asynchronous Transfer Mode) The DSL-302Tsupports Bridged Ethernet over ATM (RFC1483),
IPover ATM (RFC1577) and PPPover ATM (RFC 2364).
• Precise ATM Traffic Shaping Traffic shaping is a method of controlling the flowrate of ATM data cells.
This function helps to establish the Qualityof Service for ATM data transfer.
• G.hs (Auto-handshake) This allowsthe Modemto automaticallychoose either the G.lite or G.dmtADSL
connection standards.
• High Performance Veryhigh ratesof data transfer arepossible withthe Modem.Up to eight Mbps
downstreambit rate using the G.dmt.
• Easy Installation The DSL-302T uses aweb-based graphical user interface program for convenient
management access and easyset up. Anycommon web browser software can be used to manage the Modem.

DSL-302TADSL Modem User s Guide
4
Standards Compatibilityand Compliance
The DSL-302T complies withor is compatible withthe following standards as recognized bytheir respective
agencies.
• ITU G.992.2 (G.lite “Splitterless ADSL”) compliant
• ITU-T Rec. I.361 compliant
• RFC 791 Internet Protocol compliant
• RFC 792 UDPcompliant
• RFC 1334 PPPAuthentication Protocol compliant
• RFC 1483 IPover AAL5/ Bridged Ethernet over AAL5 compliant
• RFC 1557 Classical IPover ATM (IPoA) compliant
• RFC 1661 Point to Point Protocol (PPP) compliant
• RFC 1877 Automatic IPassignment compliant
• RFC 1994 Challenge Handshake Authentication Protocol compliant
• Supports RFC 2131 and RFC 2132 DHCPfunctions including: automatic assignment of IPaddress, use of
subnetmask and default gateway and provision of DNS server address for all hosts
• RFC 2364 PPPover ATM compliant (PPPoA) compliant
• RFC 2516 PPPover Ethernet compliant (PPPoE) compliant
• RFC 2684 Bridged/Routed Ethernet over ATM compliant
• Embedded management agentaccessed via web browser
• Supports DHCPfor up to 253 hot connections
• Supports ATM ForumUNI 3.1/4.0

DSL-302TADSL Modem User s Guide
5
Packing List
Open the shipping carton and carefullyremove all items. In addition to this User'sGuide, ascertain that youhave:
• One DSL-302TADSL Modem
• One Quick Installation Guide
• One twisted-pair telephone cable used for ADSL connection
• One straight-through Ethernet cable
• One AC power adapter suitable for your electric service
• An Installation CD containing this User s Manual and USB software driver
Front Panel Display
Place the Modemin a location that permits an easy viewof the LED indicators on the frontpanel.
The LED indicators on the front panel include the Power, Status, ADSLLink/Act, Ethernet Link/Act,and
USB Link/Act indicators. The ADSL, Ethernet, and USB indicators monitor link status and activity(Link/Act).
Power Steadygreen light indicates the unit is powered on. When the device is
powered off this remains dark.
Status
Lights steadygreenduringpower onself-test (POST). Oncetheconnection
status hasbeen settled, thelightwill blinkgreen.Iftheindicator lights steady
greenafter thePOST,thesystemhas failedandthe deviceshouldbe
rebooted.
ADSL: Link/Act Steadygreen light indicates a valid ADSL connection. This will light after the
ADSL negotiation process has been settled. A blinkinggreen light indicates
activityon theWAN (ADSL) interface.
Ethernet: Link/Act A solid greenlightindicates a valid linkon startup. Thislight will blinkwhen
there is activitycurrentlypassing through the Ethernet port.
USB: Link/Act Steadygreen light indicates a valid USB connection.A blinking green light
indicates activityon the USB interface.

DSL-302TADSL Modem User s Guide
6
Rear Panel Connections
Allcable connections to the Modemare made attherear panel. Connectthe power adapter here to power on the
Modem.Use the Reset buttonto restore the settings to the factorydefault values(see FactoryReset Buttonin the
next chapter for instructions on using the reset button).
Note The Modem may be rebooted by disconnecting and then reconnecting the power.
ADSL port,
connect ADSL
cable here
USB port,
connect USB
cable here
and install
the USB
driver
Ethernet
port,
connect
Ethernet
cable here
Factory
Reset
button
Power cord
connects
here