Digitus DN-7043-4
Contents
1. WIRELESS USB 2 0 ADAPTER Quick Installation Guide DN 7043 4 amp DN 7053 2 TABLE OF CONTENTS NER VI 1 2 Wireless LAN BaSsICS sornione ia 3 By PAR red 4 A Install Drive dana a A 5 4 1 Windows XP VIS kua ri a D 5 Wireless Network Configuration eee eeeeeeeeteneeeeeeeteeettnees i SEL ULY CON RR RE EE EATE NEEE 7 5 2 Client Mode Default Setting i 6 Technical Specifications cccee cece ee ceee eee eeeeeeeeeeeaee rerrrrrrrne 15 ESN sdecccaycdavaceudiesteacocsssocrasoenten cy EEE Eg 16 EEE EE 17 INTRODUCTION Thank you for your purchase of the Wireless LAN Adapter Featuring wireless technology this wireless networking solution has been designed for both large and small businesses and it is scalable so that you can easily add more users and new network features depending on your business scale FEATURES Support Microsoft 7 32bit 64bit Vista 32bit 64bit XP 32bit 64bit Operating distance of up to 300 meters in free space 300 270 240 180 120 90 60 54 48 36 30 24 22 18 12 11 6 5 5 2 1 Mbps selectable Data Rate 64 128 bit WEP WPA Wi Fi Protected Access WPA2 2 400GHz 2 4835GHz unlicensed ISM Frequency Band Modulation Method IEEE 802 116 DSSS Direct Sequence Spread Spectrum IEEE 802 119 802 11n OFDM Orthogonal Frequency Division Multiplexing Easy operation and setting up SYSTEM REQUIREMENTS Windows System 7 32bit 64bit Vista 32bit 64bit XP 322. counter to zero 5 2 6 Wi Fi Protected Setup An easy and secure setup solution for Wi Fi network you can choose PIN Code or Push Button method to connect to an AP ll Pin method Step 1 Push the PIN button General Profile Available Network Status Statistics Wi Fi Protect Setup i Counter Name Value Tx OK 151 Tx Error O Rx OK 63 Rx Packet Count 63 Rx Retry O Rx ICV Error O General Profile Available Network Status Statistics Wi Fi Protect Setup Wi Fi Protected Setup WPS An easy and secure setup solution for Wi Fi network Pin Input Config PIN After pushing the FIN button Please enter the PIN code into your AP PIN Code 10014981 Pin Input Config PIN Push Button After pushing the PBC button Please push the physical button on your AP or visual button on the WPS config page Push Button Config PBC General Profile Available Network Status Statistics Wi Fi Protect Setup Wi Fi Protected Setup WPS An easy and secure setup solution for Wi Fi network Pin Input Config PIN After pushing the PIN button Please enter the PIN code into your AP PIN Code 10014981 i Pin Input Config PIN b Push Button After pushing the PBC button Please push the physical button on your AP or visual button on the WPS config page Push Button Config PBC Step 2 Select a specific AP Wi Fi Protected Setup WES k Do you want to select a s
3. flaws of WEP Transmission Control Protocol Internet Protocol TCP IP TCP IP is the protocol suite developed by the Advanced Research Projects Agency ARPA It is widely used in corporate Internet works because of its superior design for WANs TCP governs how packet is sequenced for transmission the network The term TCP IP is often used generically to refer to the entire suite of related protocols Transmit Receive The wireless throughput in Bytes per second averaged over two seconds Wi Fi Alliance The Wi Fi Alliance is a nonprofit international association formed in 1999 to certify interoperability of wireless Local Area Network products based on IEEE 802 11 specification The goal of the Wi Fi Alliance s members is to enhance the user experience through product interoperability The organization is formerly known as WECA Wi Fi Protected Access WPA The Wi Fi Alliance put together WPA as a data encryption method for 802 11 wireless LANs WPA is an industry supported pre standard version of 802 111 utilizing the Temporal Key Integrity Protocol TKIP which fixes the problems of WEP including using dynamic keys Wide Area Network WAN A WAN consists of multiple LANs that are tied together via telephone services and or fiber optic cabling WANs may span a city a state a country or even the world Wired Equivalent Privacy WEP Now widely recognized as flawed WEP was a data encryption method used to protect the
4. access to my files Symptom Slow or poor performance under AP mode Remedy Try to select another channel for the communicating group or move your device closer to the Access Point 14 IEEE 802 11 Standard The IEEE 802 11 Wireless LAN standards subcommittee which is formulating a standard for the industry Access Point An internetworking device that seamlessly connects wired and wireless networks together Ad Hoc An Ad Hoc wireless LAN is a group of computers each with a WLAN adapter connected as an independent wireless LAN Ad Hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation BSSID A specific Ad Hoc LAN is called a Basic Service Set BSS Computers in a BSS must be configured with the same BSSID DHCP Dynamic Host Configuration Protocol a method in which IP addresses are assigned by server dynamically to clients on the network DHCP is used for Dynamic IP Addressing and requires a dedicated DHCP server on the network Direct Sequence Spread Spectrum This is the method the wireless cards use to transmit data over the frequency spectrum The other method is frequency hopping Direct sequence spreads the data over one frequency range channel while frequency hopping jumps from one narrow frequency band to another many times per second ESSID An Infrastructure configuration could also support roaming capability for mobile workers More than one BSS can be configured as an Ext
5. IP addresses to all clients every time they log on to the network Network using dynamic IP address requires setting up and running a DHCP Server INSTALL DRIVER UTILITY The installation amp driver CD will automatically activate the autorun installation program after you insert the disk into your CD drive Step 1 REALTEK Wireless LAN Driver and Utility InstallShield Wizard Insert the installation CD into your choose setup Language Select the lanquage for the installation from the choices below CD ROM Choose the Setup Language and click Next button Basque Bulgarian Catalan Chinese Simplified Chinese Traditional Croatian French Canadian French Standard German Greek InstallShield Step 2 Installation descriptions REALTEK 11n USB Wireless LAN Driver and Utilit shown Click Next to The InstallShield Wizard will install REALTEK 11n USB CO nti nue Wireless LAN Driver and Utility on your computer To continue click Next Click Install to begin the installation HEESE REALTEK 11n USB Wireless LAN Driver and Utility Click Install to begin the installation If you want to review or change any of your installation settings click Back Click Cancel to exit the wizard InstallShield ial Installing amp configuring WLAN utility Installing Drivers Step 3 Click Finish to complete installation REALTEK lin USB Wireless LAN Driver and Utilit
6. bit 64bit PCs must have a device driver installed It allows you to communicate with Wireless LAN 11n USB Client Adapter BEFORE YOU START 1 Confirm Box Contents o Wireless LAN 11n USB Client Adapter ul Quick Start Guide Driver CD CONNECTING YOUR WIRELESS LAN 11n USB ADAPTER TO PC Quick Start Guide Connect your Wireless LAN 11n USB Client Adapter to your PC Install driver GETTING TO KNOW WIRELESS LAN ADAPTER LED LED turns on when Wireless LAN link to Wireless LAN Adapter or AP LED is blinking when Wireless LAN Adapter is active WIRELESS LAN BASICS Wireless LAN network defined by IEEE standard committee could be configured as Ad Hoc wireless LAN Infrastructure wireless LAN Ad Hoc network is a group of PCs installed with wireless LAN cards this group of PCs is called a BSS Basic Service Set PCs in this group can use their wireless LAN cards to communicate with each other but can not connect to the Internet vo ere Aces Point Ad Hoc Wireless Network Infrastructure Wireless Network The most obvious difference between Infrastructure wireless network and Ad Hoc wireless network is that the PCs in Infrastructure wireless network can access the resource in the Internet through Access Point Depending on your requirement you can easily set up your PC s network to be a Ad Hoc or Infrastructure wireless network Generally speaking if in your network there is an Access Point i
7. connected by cable air that share applications data and peripherals All connections are made via cable or wireless media but a LAN does not use telephone services It typically soans a single building or campus Network A network is a system of computers that is connected Data files and messages can be transmitted over this network Networks may be local or wide area networks Protocol A protocol is a standardized set of rules that specify how a conversation is to take place including the format timing sequencing and or error checking SSID A Network ID unique to a network Only clients and Access Points that share the same SSID are able to communicate with each other This string is case sensitive Static IP Addressing A method of assigning IP addresses to clients on the network In networks with Static IP address the network administrator manually assigns an IP address to each computer Once a Static IP address is assigned a computer 16 uses the same IP address every time it reboots and logs on to the network unless it is manually changed Temporal Key Integrity Protocol TKIP The Temporal Key Integrity Protocol pronounced tee kip is part of the IEEE 802 111 encryption standard for wireless LANs TKIP is the next generation of WEP the Wired Equivalency Protocol which is used to secure 802 11 wireless LANs TKIP provides per packet key mixing a message integrity check and a re keying mechanism thus fixing the
8. emporal Key Integrity Protocol pronounced tee kip is part of the IEEE 802 111 encryption standard for wireless LANs TKIP is the next generation of WEP the Wired Equivalency Protocol which is used to secure 802 11 wireless LANs TKIP provides per packet key mixing a message integrity check and a re keying mechanism thus fixing the flaws of WEP 19 802 1x Authentication 802 1x is a framework for authenticated MAC level access control defines Extensible Authentication Protocol EAP over LANs WAPOL The standard encapsulates and leverages much of EAP which was defined for dial up authentication with Point to Point Protocol in RFC 2284 Beyond encapsulating EAP packets the 802 1x standard also defines EAPOL messages that convey the shared key information critical for wireless security Advanced Encryption Standard AES Security issues are a major concern for wireless LANs AES is the U S government s next generation cryptography algorithm which will replace DES and 3DES 20
9. ended Service Set ESS Users within an ESS could roam freely between BSSs while served as a continuous connection to the network wireless stations and Access Points within an ESS must be configured with the same ESSID and the same radio channel Ethernet Ethernet is a 10 100Mbps network that runs over dedicated home office wiring Users must be wired to the network at all times to gain access Gateway A gateway is a hardware and software device that connects two dissimilar 15 systems such as a LAN and a mainframe In Internet terminology a gateway is another name for a router Generally a gateway is used as a funnel for all traffic to the Internet IEEE Institute of Electrical and Electronics Engineers Infrastructure An integrated wireless and wired LAN is called an Infrastructure configuration Infrastructure is applicable to enterprise scale for wireless access to central database or wireless application for mobile workers ISM Band The FCC and their counterparts outside of the U S have set aside bandwidth for unlicensed use in the so called ISM Industrial Scientific and Medical band Spectrum in the vicinity of 2 4 GHz in particular is being made available worldwide This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe Local Area Network LAN A LAN is a group of computers each equipped with the appropriate network adapter card
10. ength and link Ker e i Subnet Mask 255 255 255 0 quality are displayed also SAI The bar graph displays the quality and strength of the link between the node and its Access Point Link Quality is a measurement of receiving and transmitting performances over the radio Network Address displays current MAC Address IP Address Subnet and Gateway Click Renew IP button to refresh IP address leased from wireless AP 5 2 2 PRO FILE SETTING General Profile Available Network Status Statistics Wi Fi Protect Setup Available Profile s In profile tab you can Profle Name Si Add Remove Edit Duplicate and Set Default t i uplicate and Set Default to manipulate profile content manually Strongly recommend to use profile after you do Available Network 5 2 3 AVAILABLE NETWOEK SETTING Click Available Network General Profile Available Network Status Statistics Wi Fi Protect Setup tab and it will show all Avalable Network SD Channel Encryption Network Authentication Sig P available networks that radio irscnrcane n Gear i gt Ne 26 aloe gt Can reaches Select proper Tekom Office 4 WEP Unknown 64 D 7 6 None Unknown 44 gt SSID amp BSSID you want to Pirae Swe ua 2 lt gt connect Click Refresh button to ira Double click on item to join create profile force and rescan available networks currently Select one of SSIDs and click Add to Profile to create profi
11. le that can be configured more Ireless network properties wireless parameters da Network Name SSID BlackBox N t h S p ag e 3 y O U Ca Nn e d It O This is computer to computer ad hoc network wireless access points are not used 802 1x configure your profile name Charne cA TYPE Wireless network security This network requires a key for the Following configure wireless security Network Authentication Open System V Tre like WE P WPA WPA2 Data encryption Disabled vi ee 802 1x etc After SA Identity finishing setup click OK button to save configuration Password Confirm network key Certificate 5 2 4 Status Status page tab shows all General Profile Available Network Status Statistics Wi Fi Protect Setup I I Manufacturer REALTEK WI reless networki Ng and NDIS Driver Version 5 1066 327 2009 Short Radio Header No device driver version in Encryption Disabled Authenticate Open System d il Channel Set ETSI MAC Address 00 02 72 7E AA 29 etal S Data Rate AUTO Tx 72 Mbps Rx 144 5 Mbps Channel Frequency 11 2462 MHz Status Associated SSID MyWLAN Network Type Infrastructure Power Save Mode None Associated AP MAC 00 02 72 86 51 01 Up Time hh mm ss 0 03 55 5 2 5 Statistics Statistics page tab will show real time TX RX relative counters to check or evaluate the wireless performance Click Reset button to set
12. lease push the physical button on your AP or visual button on the WPS config page Push Button Config PBC a Wi Fi Protected Setup This page allows you to change the setting for WPS Wi Fi Protected Setup Using this feature could let your wireless client automically syncronize its setting and connect to the Access Point in a minute without any hassle CO Disable WPS WPS Status Configwed UnConfigwed Self PIN Number 95661469 Push Button Configuration Start PBC Current Key Info Open None NA Client PIN Number Standard 1802 11b g n 802 3 802 3u LED Windows 7 32bit 64bit Vista 32bit 64bit XP 32bit 64bit 5 to 90 maximum non condensing 13 Qi Symptom The LED is off Remedy Make sure the PC Card is inserted properly Otherwise contact your vendor Symptom The LED is always on not blinking Remedy Make sure that you have installed the driver from attached CD Otherwise contact your vendor Symptom The LED is blinking but the PC Card icon does not appear in your icon tray Remedy Make sure that you have installed the Utility from the attached CD Symptom The PC Card is linking but can t share files with others Remedy Make sure the file and printer sharing function is enabled You can enable the function by checking the icon of My Computer gt Control Panel gt Network gt file and printer sharing gt want to be able to give others to
13. ll and the spatial reuse ratio is low However high fragment threshold leads to low fragment overhead Hence there is a trade off between Spatial re use and fragment overhead Fragment threshold is the maximum packet size used for fragmentation Packets larger than the size programmed in this field will be fragmented If you find that your corrupted packets or asymmetric packet reception all send packets for example You may want to try lowering your fragmentation threshold This will cause packets to be broken into smaller fragments These small fragments if corrupted can be resent faster than a larger fragment Fragmentation increases overhead so you ll want to keep this value as close to the maximum value as possible RTS Request To Send Threshold The RTS threshold is the packet size at which packet transmission is governed by the RTS CTS transaction The IEEE 802 11 1997 standard allows for short packets to be transmitted without RTS CTS transactions Each station can have a different RTS threshold RTS CTS is used when the data packet size exceeds the defined RTS threshold With the CSMA CA transmission 18 mechanism the transmitting station sends out an RTS packet to the receiving station and waits for the receiving station to send back a CTS Clear to Send packet before sending the actual packet data This setting is useful for networks with many clients With many clients and a high network load there will be many more collisio
14. n it ve recommend you to set your network as an Infrastructure so it can connect to the Internet S IP ADDRESS To use the Wireless LAN 11n USB Client Adapter with a computing device the Wireless LAN Adapter must be equipped with a proper Interface All drivers and supporting software for the Wireless LAN Adapter must be installed and contigured first Ask your system administrator for the following information which you may need to provide during driver installation Your Wireless Client Name Your Wireless SSID Your computer s unique Client name and workgroup name For your network account your user name and password Your IP address gateway address and subnet mask if you re not using a DHCP client Any computer on a network is identified by a unique network address There are two methods to assign a network address to a computer on a TCP IP network Static IP addressing Dynamic IP addressing DHCP Client In network with static IP addressing the network administrator manually assigns an IP address to each computer Once a static IP address is assigned a computer uses the same IP address every time it reboots and logs on to the network You may manually change the IP address in the Network Properties dialog box Network using static IP address is easy to set up and do not require additional network management software In network with dynamic IP addressing a DHCP server in the network dynamically assigns
15. ns By lowering the RTS threshold there may be fewer collisions and performance should improve Basically with a faster RTS threshold the system can recover from problems faster RTS packets consume valuable bandwidth however so setting this value too low will limit performance Beacon Interval In addition to data frames that carry information from higher layers 802 11 includes management and control frames that support data transfer The beacon frame which is a type of management frame provides the heartbeat of a wireless LAN enabling stations to establish and maintain communications in an orderly fashion Beacon Interval represents the amount of time between beacon transmissions Before a station enters power save mode the station needs the beacon interval to know when to wake up to receive the beacon and learn whether there are buffered frames at the access point Preamble Type There are two preamble types defined in IEEE 802 11 specification A long preamble basically gives the decoder more time to process the preamble All 802 11 devices support a long preamble The short preamble is designed to improve efficiency for example for VoIP systems The difference between the two Is in the Synchronization field The long preamble is 128 bits and theshort is 56 bits WPA2 It is the second generation of WPA WPA2 is based on the final IEEE 802 11 amendment to the 802 11 standard Temporal Key Integrity Protocol TKIP The T
16. pecific AP Step 3 Enter the PIN code into your AP WiFi Protected Setup This page allows you to change the setting for WPS Wi Fi Protected Setup Using this feature could let your wireless client automically syncronize its setting and connect to the Access Point in a minute without any hassle CI Disable WPS WPS Status Configured UnConfigued Self PIN Number 95661469 Push Button Configuration Current Key Info Open None N A Client PIN Number Step 3 _ Wi Fi Protected Setup Select AP Select AP that you want to WPS AP Name WPS AP MAC 1235689 00 02 72 F 1 08 FE configure RTL9SSK GYY 00 E0 4C 86 51 01 Step 4 Wi Fi Protected Setup PIN method Wait for configuring your wireless AP to be the security Please enter the following PIN code into your AP setting PIN Code 10014981 Status Selected AP ASA Wi Fi Protected Setup PIN method We de Cancel 1 ll PBC method Step 1 Push the PBC button Step 2 Push the physical button on your AP or visual button on the WPS config page 12 General Profile Available Network Status Statistics Wi Fi Protect Setup Wi Fi Protected Setup WPS An easy and secure setup solution for Wi Fi network Pin Input Config PIN After pushing the PIN button Please enter the PIN code into your AP PIN Code 10014981 Pin Input Config PIN Push Button After pushing the PBC button P
17. transmission between 802 11 wireless clients and APs However it used the same key among all communicating devices WEP s problems are well known including an insufficient key length and no automated method for distributing the keys WEP can be easily 17 cracked in a couple of hours with off the shelf tools Wireless LAN A wireless LAN does not use cable to transmit signals but rather uses radio or infrared to transmit packets through the air Radio Frequency RF and infrared are the commonly used types of wireless transmission Most wireless LANs use spread spectrum technology It offers limited bandwidth usually under 11Mbps and users share the bandwidth with other devices in the spectrum however users can operate a spread spectrum device without licensing from the Federal Communications Commission FCC Fragment Threshold The proposed protocol uses the frame fragmentation mechanism defined in IEEE 802 11 to achieve parallel transmissions A large data frame is fragmented into several fragments each of size equal to fragment threshold By tuning the fragment threshold value we can get varying fragment sizes The determination of an efficient fragment threshold is an important issue in this scheme If the fragment threshold is small the overlap part of the master and parallel transmissions is large This means the spatial reuse ratio of parallel transmissions is high In contrast with a large fragment threshold the overlap is sma
18. y Setup Status The InstallShield Wizard is installing REALTEK 11n USB Wireless LAN Driver and Utility InstallShield i Cancel Now installing REALTEK 11n USB Wireless LAN Driver REALTEK 11n USB Wireless LAN Driver and Utility InstallShield Wizard Complete The InstallShield Wizard has successfully installed REALTEK 11n USB Wireless LAN Driver and Utility Click Finish to exit the wizard Cancel WIRELESS NETWORK CONFIGURATION Qi Wireless LAN 11n USB Client Adapter uses its own management software All functions controlled by users are provided by this application When you insert the Wireless LAN Adapter into your laptop or desktop an icon should appear in the Windows System Tray automatically 5 1 Utility Icon M Client mode utility running but no Wireless LAN Adapter plugged 5 2 Client Mode Default Setting Wireless Device Control Show Tray Icon Disable Adapter C Radio Off WE Show Tray Icon Show icon or do not show icon in systray WE Radio Off Stop wireless signal BM Disable Adapter Stop wireless device 5 2 1 GENERAL SETTING Once device is set double General Profile Available Network Status Statistics Wi Fi Protect Setup Status Associated click on that icon and the ee eee configuration window will pop AE eed up as shown It shows the Signal Strength HMMM eeo Link Quaity Hd 00 current connected network ea io The signal str
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