Modecom MC-105USB User manual

MODECOM
user’s manual
MODECOM Wireless
Network USB Adapter
MC-105USB

www.modecom.eu
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WIRELESS NETWORK USB ADAPTER
Table of Contents
1 Introduction ........................................................................................................................................................................................ 3
1.1 Product Overview......................................................................................................................................................................... 4
1.2 Main Feature of 802.11b/g USB 2.0 Adapter....................................................................................................................... 4
1.3 System Requirements ................................................................................................................................................................. 4
2 Wireless Network Concepts.......................................................................................................................................................... 5
2.1 Wireless LAN Network Modes .................................................................................................................................................. 5
2.2 Planning Your New Wireless Network.................................................................................................................................... 7
3 Driver installation manual. 9
4 Conguration 9
4. 1 Creating connection in Infrastructure mode ( with Access point) 9
4. 2 Selected information to be found in RaLink Wireless Utility. 10
4. 3 Creating connection in Ad-Hoc mode. 11
Appendix A 15
Glossary 15

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1. Introduction
Thank you for your selection of MODECOM Wireless Network USB Adapter MC-105USB.
MODECOM places a high value on quality of its products to not only match, but also surpass customers’ re-
quirements. Our clients are well acquainted with high quality, advanced technology, reliability and functional-
ity of our products. To facilitate the use of the device please take a few moments to read the instruction man-
ual thoroughly.
Congratulations on your decision to use wireless networking. The 802.11b/g Wireless LAN Card MODECOM
MC-105USB is a high performance, IEEE Standard 802.11b/g compatible, wireless networking card that installs
into your PC’s slot to support wireless LAN communications at speeds up to 54Mbps with other PC’s located
hundreds of feet apart.
Figure 1 Typical Wireless LAN Network
The 802.11b/g Wireless LAN Card allows reliable, secure and untethered access to your data providing you with
exciting new ways to adapt to your lifestyle and needs. Without the limitations of wires, true mobility and data
access is seamless in your oce or home oce.
Data access from work, streaming audio MP3’s from a notebook to a stereo, downloading Internet content
wirelessly from a broadband connection, watching TV on a notebook, are all possibilities with the MODECOM
MC-105USB 802.11b/g Wireless LAN Card.
For You we create products unique in every aspect…
Choose better future – choose MODECOM!
MODECOM Wireless
Network USB Adapter
MC-105USB

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WIRELESS NETWORK USB ADAPTER
1.1 Product Overview
The MODECOM MC-105USB 802.11b/g Wireless LAN Card gives you the freedom of secure high-speed com-
munications with other PCs without the need for interconnecting wires. You can even connect in to other LAN
infrastructures such as your company’s internal Ethernet LAN or your own home network. The antenna and de-
sign of the Wireless LAN Card gives you unmatched sensitivity which means your system will remain connec-
ted to other wireless PCs at high speeds for longer distances.
The Wireless LAN Card operates according to the IEEE 802.11b/g Wireless LAN specication, for wireless data
communications at speeds up to 54Mbps (Megabits per second). IEEE 802.11b/g operates on frequencies in
the 2.4GHz range using OFDM (Orthogonal Frequency Division Multiplexing) technology.
Backed by international standards and the IEEE organization, IT departments and end-users alike benet from
the reliability and interoperability of products based on these standards. From an investment point of view, it
makes good business sense investing in technology that will be support worldwide for many years to come
(unlike technologies not backed by international communications standards). Whether you are running a com-
pany or a home oce, the Wireless LAN Card reduces, or eliminates in some cases, the need to setup wired LAN
networks in the oce or home oce, eliminating costs associated with wiring rooms and buildings.
1.2 Main Feature of MODECOM MC-105USB 802.11b/g
USB 2.0 Adapter
• Up to 54Mbps data transfer rates for high-speed access to data
• Compatible with 802.11g Wi-Fi CERTIFIED equipment (2.4GHz operating range)
• Plug-and-play with Microsoft Windows operating systems
• Secure data access, up to 128-bit WEP encryption protection
• Backward Complain with 802.11b.
• Support both Ad Hoc Mode and Infrastructure Mode Access.
1.3 System Requirements
• PC with Windows 98 SE, Windows 2000, Windows ME, Windows XP, or Windows Vista Operating Systems.
• An available USB port
• CD-ROM drive (for the drivers and conguration software)
• A minimum of 10 MB of free disk space for installing the driver and utility program.
• Another IEEE 802.11b or 802.11g compliant device installed in your network.
2. Wireless Network Concepts
For the past few decades, wired Local Area Networks (LAN) or more commonly know as Ethernet, have provi-
ded a seamless way of connecting and communicating with multiple PCs, desktops, laptop/notebooks, servers
as well as a host of other peripherals, including printers, scanners, etc. LANs have served us well in environ-
ments where users were not mobile or had little need to access data other than in their oce.
With the advent of notebook computers and an increasingly mobile computing society, the need for wireless
networking nds more applications with each passing day. Wireless LANs have evolved to meet the needs of
mobile computing and are becoming very popular as compatibility, reliability and familiarity increases and
equipment costs decrease.
Wireless LANs (WLAN) allow users to roam freely about a network taking their computers with them while

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still maintaining a networking connection. In essence, WLANs are an extension of wired LAN networks, where
the critical need is data access and mobility. The tradeos are slower speeds (although quite satisfactory for
Internet and email access) and limited roaming distance, as dictated by the environment.
A basic WLAN network requires client nodes and access points, similar to a LAN with its clients and infrastructu-
re (switches, repeaters, etc.).The access point is the connection to the wired LAN network or a designated com-
puter device performing the supervisory function, while client nodes are typically WLAN adapters installed
in peripheral computing devices, such as notebooks, desktops, personal digital assistants (PDAs) and others.
Once a WLAN is setup, it acts like a wired LAN, using the same protocols designated for communicating via the
IEEE Ethernet standard.
2.1 Wireless LAN Network Modes
WLANs basically have two modes of operation:
• Ad-Hoc mode
• Infrastructure mode
Ad-Hoc Mode
An Ad-Hoc WLAN is created when two or more PCs equipped with Wireless LAN Cards (WLAN clients) are con-
gured to use the same radio channel and Network Name in the same area and can communicate freely with
each other, without the need for an Access Point to a hard-wired LAN network. Only PCs that use the same ra-
dio channel and network name can communicate over the Ad-Hoc network. This type of a network is a peer-to-
peer relationship where each computer talks directly to one another with no one PC being dominant.
Figure 2 Ad-Hoc Mode: Two or More PCs with 802.11b/g Wireless LAN Cards Congured to Same Radio
Channel and Network Name

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Infrastructure Mode
When a WLAN access point is introduced into the WLAN, the access point and its clients (each PC) comprise
a Basic Service Set (BSS), whereby the access point serves as the connection to the wired LAN for each client.
Clients within the same BSS do not directly communicate between each other; rather they communicate to the
AP that routes the data to the appropriate destination.
The access point bridges both wired and wireless networks, allowing wired and wireless client communication.
This arrangement of WLAN access points and clients is commonly referred to as Infrastructure mode. An access
point also extends the range of the WLAN, double over that of client only networks because the access point
is able to forward data within its BSS.
Infrastructure mode enables the network clients to freely roam, once an ESS (Extended Service Set) is establi-
shed.
With all clients using the same radio channel and ESS ID (sometimes referred to as SSID which is a given name
to the network), users are fully mobile within the range of the access point signal. Access points should be situ-
ated in location to deliver the largest range of signals, with minimal interference. Best performance and signal
quality is often aected by building structures, walls, etc., and may require some trial-and-error to identify the
best location for access points.
Figure 3 Infrastructure Mode-Combination Wireless and Hardwired LANs
2.2 Planning Your New Wireless Network
First, determine what components (WLAN cards, access points) and what kind of network will be created (Ad-
Hoc, Infrastructure mode). Then select your network name (SSID), WEP key (security password) and channel
number (1 through 11 in US, 1 through 13 in Europe and 1 through 14 in Japan). All members of the wireless
LAN will have to congure their PCs to the same SSID, WEP and Channel number to talk to each other. SSID,
WEP key and channel number are essential to understanding and creating a successful wireless network.
These concepts are explained in the following paragraphs.

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SSID
A wireless network requires a BSS or ESS to operate and a name associated with it. SSID literally stands for a ne-
twork name for use with that Service Set of clients and access points if so set up. All computers must have the
same SSID as the network in order to communicate over the new network. The SSID name can be any name
such as “wireless_lan”, “Bob’s domain”, or “AbCdE123”, and can include numbers as well as be case-sensitive. If
the exact SSID name is not used, then that wireless client cannot logon into that network.
Operating Frequency (Channel)
IEEE 802.11b/g wireless LAN networks communicate using one of several available channels (each with a dif-
ferent operating frequency) to reduce the interference from other potential sources or users of that channel.
Depending on the country where the network is being set up, you may have a choice of up to 14 channels
available. In the US, channels 1 through 11 are dened for use in the 2.4GHz spectrum used by 802.11b/g. In
Europe, channels 12 and 13 are added, while Japan can have up to 14 channels. Channels 1, 6 and 11 are the
most commonly used channels in the US.
For your network, choose a channel that oers little interference and congure all users of this network to the
same channel.
WEP Key
WEP provides for two levels of security encryption based on the length of bits in a key called a Shared Key. A
40-bit key (which is 5 characters) provides some security; this can be a key like “12345” or “MyLAN”. A 104-bit
key is also available and provides more robust security. A 13-character key is required for 104-bit security. Keys
can be in ASCII characters or Hexadecimal. ASCII characters are those used in computers and include all typew-
ritten characters including the alphabet and numbers, as well as */”()[] characters. Hexadecimal characters are
limited to the numbers 0-9 and the rst 6 letters of the alphabet a-f.
Table 1 WEP Key Examples
WEP Key size Number of Digits Example
40-bit (also called 64-bit) 5 (ASCII) 12345, MyLAN, 78E*5
10 (Hexadecimal) 1A37FB458C
104-bit (also called 128-bit) 13 (ASCII) 1234567890123,This_is_MyLAN
26 (Hexadecimal) 1A37FB458C12E34F8523E9FF76
Note: Every key has an added 24-bit provided by the card, which are set by the manufacturer and not user
modiable. This manual uses the terms 40-bit and 104-bit to represent 64-bit and 128-bit keys re-
spectively. This is the most commonly used terminology in the industry.
The WEP key for your wireless LAN network is another form of password. Like passwords, certain combinations
of passwords are not recommended for use (such as 01234, abcde, or publicly known information like your of-
ce phone number, dog’s name, etc.). Protect your WEP key as you would a password.
Note: If you access other networks with already predened keys, always enter them exactly as they appear
taking note of lower and upper case letters.
Any computer accessing a wireless network with WEP enabled not only requires the same SSID but also the
same WEP key in order to have access.

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With the above factors decided, physical placement of the components will be critical. The maximum range of
the wireless LAN will often be decided by the type of environment it is located in and, if in dierent rooms, by
how many obstacles are in the way which reduces the range of the wireless adapters. Often, Ad-Hoc mode will
require the wireless clients to be in closer range of each other than Infrastructure type networks. The Wireless
LAN Card can operate at up to 100m indoors and up to 300m outdoors, although the physical environment
(walls, oors, ceilings, etc.) will limit the range of wireless signals.
3. Install the driver
a) Insert the installation CD into your CD-ROM driver, Double click the icon to start setup
b) Choose Ralink Conguration Tool and click next to go on
c) Choose Optimize for WiFi mode and click next to go on

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d) After the les are copied to your computer you will see a window as below. Please connect your
adapter when you see it.
e) Click Finish to end the setup
4 Make infrasructure connection
4.1 Double click the icon in circle
You will see:

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• You can click the button Rescan to nd which AP is in range, they will show on the window, choose one you
want to connect to, click the button connect, and click ok to nish the connection operation.
• An infrastructure connection is accomplished.
• Note, please choose correct channel setting up to your law, for example, ch13 is permitted in your country,
and you set your router at ch13, while you choose ch1-ch11 (default setting), you will never nd the AP, and
you will have to choose ch1-ch13 setting in Advanced page as below
4.2 Some help information in RaLink Wireless Utility
• How to nd out your IP address:
• How to find out which a WIFI environment you are inside

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4.3 Make Ad-Hoc mode connection
a) Make an Ad-Hoc SSID
A.

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B.
C.

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D.
b) Setup static IP address for the Ad-Hoc link
A. At its property page, double click item Internet Protocol (TCP/IP)

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B. You will get and ll the IP address as in the example as below:
C. Click ok to nish the setup
c) Ad-Hoc setup for one point accomplished
d) Setup another Ad-Hoc point as step A,B,C.

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e) Ad-Hoc mode link accomplished. And you can visit each other.
Note: To make an Ad-Hoc mode link, Do remember to choice the same channel, its static IP address should be
in the same netsub, and the SSID should be the same too.
Appendix A
Glossary
Access Point
A wireless LAN adapter, which connects to a wired LAN network (acting as a bridge) and serves as the base for a
wireless LAN network, directing communication between clients. An access point is only used in Infrastructure
mode. Access Points in a business environment are typically connected to the wired LAN network. In the home,
an Access Point would be connected to a broadband Internet device such as a Cable or ADSL modem.
Ad-Hoc
This is a wireless LAN network comprised solely of clients (no access points), which can communicate with each
other only when they are in range of each other’s Signal and congured to the same channel and SSID.
BSS – Basic Service Set
This denotes the availability of access points and clients, all in communication with each other. An Ad-Hoc LAN
(clients only) may also have a BSS ID; all machines must use the same BSS ID.
Client
A PC, peripheral or other electronics with a connection to the network, with the sole purpose of using the
network for data access and transfer. For example, a notebook PC with the Wireless LAN Card is considered a
client.
ESS – Extended Service Set
The availability of access points and clients (BSS) and connections to wired networks, as well as the ability for a
client to roam. ESS is available in Infrastructure mode, and all components must have the same ESS ID. Clients
within an ESS may roam freely through many BSSs, if they are within range of the wireless LAN networks.
Infrastructure
As opposed to Ad-Hoc, this network mode allows connection to access points and to wired LAN networks or
Internet access device such as a cable or ADSL modem.
LAN – Local Area Network
A network of clients/users typically based on the IEEE Ethernet protocol and using TCP/IP (Internet Protocol).
Roaming
Clients can freely move about the wireless LAN network (ESS).
WEP – Wired Equivalent Privacy

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A shared-key encryption protocol used to provide security for wireless data. At least two implementations of
WEP exist, with keys based on the number of bits (64 or 128-bit). The more bits in the key, the harder it is to de-
cipher and therefore, the more secure the connection is.
Copyright Statement
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by
any means, whether electronic, mechanical, photocopying, recording or otherwise without the prior writing
of the publisher.
Windows TM 98SE/Me/2000/XP/Vista are trademarks of Microsoft® Corp.
Pentium is a trademark of Intel.
All copyright reserved.
Copyright©2008 MODECOM S.A. All rights reserved. The MODECOM logo is a registered trademark of
MODECOM S.A.
ENVIRONMENT PROTECTION:
This symbol on our product nameplates proves its compatibility with the EU Directive2002/96 concer-
ning proper disposal of waste electric and electronic equipment (WEEE). By using the appropriate di-
sposal systems you prevent the potential negative consequences of wrong product take-back that can
pose risks to the environment and human health. The symbol indicates that this product must not be disposed
of with your other waste. You must hand it over to a designated collection point for the recycling of electrical
and electronic equipment waste. The disposal of the product should obey all the specic Community waste
management legislations. Contact your local city oce, your waste disposal service or the place of purchase for
more information on the collection.
Weight of the device: 20g
This is declared by MODECOM S.A., that the product MC-105USB meets indispensable requirements and other
applicable provisions of Directive 1999/5/WE. For declaration of conformity see Internet MODECOM web site
under www.modecom.eu,„Certicates”. The product is designed for use within EU territory.

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Spis treści
1.Wprowadzenie 19
1.1 Opis produktu 20
1.2 Karta sieciowa MODECOM MC-105USB 802.11 b/g 2.0 20
1.3 Wymagania systemowe 20
2.Pojęcia dotyczące sieci bezprzewodowej 20
2.1 Tryby Bezprzewodowej Sieci WLAN 21
Tryb Ad-Hoc 21
2.2 Planowanie nowej bezprzewodowej sieci. 22
3. Instrukcje dotyczące instalacji sterownika 24
4. Konguracja 25
4.1 Tworzenie połączenia w trybie Infrastruktury (z punktem dostępowym – Access point) 25
4.2 Niektóre informacje, które można znaleźć w RaLink Wireless Utility 26
4.3 Tworzenie połączenia typu Ad-Hoc 27
Załącznik A 31
Słowniczek 31

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WIRELESS NETWORK USB ADAPTER
MODECOM Wireless
Network USB Adapter
MC-105USB
1 Wprowadzenie
Dziękujemy za wybór karty sieci bezprzewodowej USB MODECOM MC-105USB.
MODECOM dba o jakość swoich wyrobów, aby nie tylko spełniać, ale i wyprzedzać oczekiwania swoich
Klientów.
Przyzwyczailiśmy Użytkowników do wysokiej jakości naszych produktów, ich zaawansowanej technologii oraz
niezawodności i funkcjonalności.
Aby ułatwić Państwu korzystanie z naszego produktu zalecamy dokładne zapoznanie się z instrukcją obsługi.
Gratulujemy decyzji założenia sieci bezprzewodowej. Bezprzewodowa karta sieciowa MODECOM SMC-105USB
802.11 b/g jest kartą wysokowydajną, zgodną ze standardem IEEE 802.11 b/g, która po zainstalowaniu obsłu-
guje połączenia w sieci LAN z szybkością do 54Mbps dla komputerów oddalonych od siebie o wiele metrów.
Rys. 1 – Typowa bezprzewodowa sieć LAN
Karta LAN sieci bezprzewodowej MODECOM MC-105USB 802.11b/g pozwala na rzetelny, bezpieczny, bez-
przewodowy dostęp do danych zapewniając wspaniałe możliwości przystosowania się do Twojego stylu życia
i potrzeb. Bez ograniczeń kablami, prawdziwie mobilna i zapewniająca dostęp do informacji jest nieodzowna
w biurze jak i w domu.
Dostęp do danych z pracy, słuchanie audycji mp3 z laptopa na stereo, ściąganie danych z Internetu bez uży-
cia kabli z połączenia szerokopasmowego, oglądanie telewizji na notebooku – wszystko to są możliwości karty
MODECOM MC-105USB do sieci bezprzewodowej LAN 802.11b/g.
Dla Państwa tworzymy rzeczy wyjątkowe pod każdym względem…
Wybierz lepszą przyszłość – wybierz MODECOM!

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WIRELESS NETWORK USB ADAPTER
1.1 Opis produktu
Karta MODECOM MC-105USB 802.11b/g do bezprzewodowej sieci LAN zapewnia bardzo szybkie połączenie z
innymi komputerami bez potrzeby połączenia kablami. Możesz się nawet połączyć z innymi infrastrukturami
LAN jak na przykład z wewnętrznym Ethernet’em w pracy lub z siecią osiedlową. Antena oraz sam projekt karty
do sieci bezprzewodowej daje Ci niezastąpione możliwości oznaczające, że Twój system zostanie podłączony
do innych bezprzewodowych komputerów znajdujących się daleko od Twojego.
Karta sieci bezprzewodowej działa zgodnie ze specykacją IEEE 802.11b/g odnośnie bezprzewodowego do-
stępu do danych z szybkością do 54Mbps (megabitów na sekundę). IEEE 802.11b/g działa na częstotliwościach
w zakresie 2.4GHz wykorzystując technologię OFDM (Orthogonal Frequency Division Multiplexing).
Wspierane przez międzynarodowe standardy oraz organizację IEEE, działy komputerowe, jak również
Użytkownicy końcowi korzystają z rzetelności i wszechstronności produktów opartych o te standardy. Z in-
westycyjnego punktu widzenia wydaje się sensowne inwestowanie w technologię, która będzie przez długie
lata powszechna na świecie (nie tak jak technologie niewspierane przez międzynarodowe standardy komuni-
kacyjne).
Niezależnie od tego, czy masz własną rmę, czy pracujesz w domu, karta do bezprzewodowej sieci LAN zmniej-
sza, lub w niektórych wypadkach eliminuje potrzebę instalowania sieci przewodowych w biurze czy w domu,
wykluczając koszty związane z okablowaniem pomieszczeń i budynków.
1.2 Karta sieciowa MC-105USB 802.11 b/g 2.0
• przepustowość danych do 54 Mbps przy szybkim dostępie do danych,
• kompatybilna z urządzeniami 802.11 g Wi-Fi (zasięg działania 2.4 GHz),
• plug-and-play dla systemów operacyjnych Microsoft Windows,
• bezpieczny dostęp do danych, zabezpieczenie szyfrowania do 128-bit WEP,
• kompatybilność wsteczna z 802.11 b,
• obsługa trybu Ad-hoc Mode oraz Infrastructure Mode.
1.3 Wymagania systemowe
• komputer z systemem operacyjnym Windows 98 SE/2000/ME/XP/Vista,
• dostępny port USB,
• czytnik CD-ROM (do instalacji oprogramowania konguracyjnego i sterowników),
• minimum 10 MB wolnego miejsca na dysku do zainstalowania sterownika i programów użytkowych,
• jeszcze jedno urządzenie kompatybilne z IEEE 802.11b lub 802.11g zainstalowane w Twojej sieci.
2.Pojęcia dotyczące sieci bezprzewodowej
W ciągu ostatnich kilku dekad lokalna sieć przewodowa (LAN), bardziej znana jako Ethernet, w jednolity spo-
sób zapewniała łączenie i komunikowanie się z wieloma innymi komputerami, laptopami/notebookami, ser-
werami, jak również hostami innych urządzeń peryferyjnych, łącznie z drukarkami, skanerami, itp. Sieci LAN
służyły nam w sytuacjach, kiedy Użytkownicy nie byli mobilni lub mieli małe zapotrzebowanie korzystania z
dostępu do danych poza biurem.
Wraz z nadejściem notebooków i rozwijającym się społeczeństwem korzystającym z komputerów, w wielu
miejscach potrzeba sieci bezprzewodowej stawała się coraz silniejsza z każdym dniem. Bezprzewodowe sieci
LAN zmieniały swoje oblicze, aby sprostać potrzebom osób przemieszczających się ze swoimi komputerami.
Zaczęły być bardzo popularne ze względu na kompatybilność, niezawodność i zmniejszające się koszty.