D Link WA126A1 High Power Wireless N 150 USB Adapter User Manual Manual Part 4

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Document ID	1210765
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Document Description	Manual Part 4
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Date Submitted	2009-12-08 00:00:00
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Appendix A - Wireless Basics
Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless
connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard,
the D-Link wireless family of products will allow you to securely access the data you want, when and where you want
it. You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals
instead of wires. Wireless LANs are used increasingly in both home and office environments, and public areas such
as airports, coffee shops and universities. Innovative ways to utilize WLAN technology are helping people to work and
communicate more efficiently. Increased mobility and the absence of cabling and other fixed infrastructure have proven
to be beneficial for many users.
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop
and desktop systems support the same protocols as Ethernet adapter cards.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in
order to use servers, printers or an Internet connection supplied through the wired LAN. A Wireless Router is a device
used to provide this link.
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Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using
wires. Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers
anywhere in your home or office network.
Why D-Link Wireless?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking
products. D-Link delivers the performance you need at a price you can afford. D-Link has all the products
you need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point
A to point B. But wireless technology has restrictions as to how you can access the network. You must
be within the wireless network range area to be able to connect your computer. There are two different
types of wireless networks Wireless Local Area Network (WLAN), and Wireless Personal Area Network
(WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network.
The access point has a small antenna attached to it, which allows it to transmit data back and forth over
radio signals. With an indoor access point as seen in the picture, the signal can travel up to 300 feet.
With an outdoor access point the signal can reach out up to 30 miles to serve places like manufacturing
plants, industrial locations, college and high school campuses, airports, golf courses, and many other
outdoor venues.
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Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN
operate in a range up to 30 feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it
doesn’t use nearly as much power which makes it ideal for personal devices, such as mobile phones,
PDAs, headphones, laptops, speakers, and other devices that operate on batteries.
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s
for home, office, business, D-Link has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check email, instant message, and etc
• Gets rid of the cables around the house
• Simple and easy to use
Small Office and Home Office
• Stay on top of everything at home as you would at office
• Remotely access your office network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate office space
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Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or office. People like the freedom of
mobility and it’s becoming so popular that more and more public facilities now provide wireless access
to attract people. The wireless connection in public places is usually called “hotspots”.
Using a D-Link USB Adapter with your laptop, you can access the hotspot to connect to Internet from
remote locations like: Airports, Hotels, Coffee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the first time it could be quite a task not
knowing where to start. That’s why we’ve put together a few setup steps and tips to help you through the
process of setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best
performance. Try to place the router/access point as high as possible in the room, so the signal gets
dispersed throughout your home. If you have a two-story home, you may need a repeater to boost the
signal to extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible
from the router/access point. This would significantly reduce any interference that the appliances might
cause since they operate on same frequency.
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Appendix A - Wireless Basics
Security
Don’t let you next-door neighbors or intruders connect to your wireless network. Secure your wireless
network by turning on the WPA or WEP security feature on the router. Refer to product manual for detail
information on how to set it up.
Wireless Modes
There are basically two modes of networking:
• Infrastructure – All wireless clients will connect to an access point or wireless router.
• Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless
network adapters on each computer. Unfortunately 802.11g/n products such as the DWA-126 do not
support ad-hoc mode.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect
to the wireless router or access point.
An Ad-Hoc* network contains only clients, such as laptops with wireless USB Adapters. All the adapters must be in
Ad-Hoc mode to communicate.
* Not supported with the DWA-126.
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Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link wireless adapter and have established a wireless connection, by default, the TCP/IP
settings should be set to obtain an IP address from a DHCP server (i.e. router) automatically. To verify your IP address,
please follow the steps below.
Windows® XP/2000 Users
• Click on Start > Run. In the run box type cmd and click OK.
• At the prompt, type ipconfig and press Enter.
• This will display the IP address, subnet mask, and the default gateway of your
adapter.
Windows Vista™/Windows 7 Users
• Click Start > All Programs > Accessories > Command Prompt. You may
need administrative access to run this application.
• For all additional prompt windows inquiring of running the command prompt
application, select Yes, OK, or Continue.
• At the prompt, type ipconfig and press Enter.
• This will display the IP address, subnet mask, and default gateway of your
adapter.
If the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some firewall software programs
may block a DHCP request on newly installed adapters.
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Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps
below:
Windows® XP/2000 Users
• Windows® XP - Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network Connections
icon.
Windows® 2000 – From the desktop, right-click My Network Places > Properties.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter (or other adapter) which will
be connected to your router.
• Highlight Internet Protocol (TCP/IP) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same subnet
as your network or LAN IP address on your router.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address 192.168.0.X
where X is a number between 2 and 99. Make sure that the number you choose is not
in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
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Appendix B - Networking Basics
Windows Vista™/Windows 7 Users
• Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network and Sharing Center icon. Along
the left panel in the window, click on Manage network connections.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter which will be connected to your
network.
• Highlight Internet Protocol Version 4 (TCP /IPv4) and click Properties.
• Click Use the following IP address and enter an IP address that is on
the same subnet as your network or LAN IP address on your router or
network.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP
address 192.168.0.X where X is a number between 2 and 99. Make sure
that the number you choose is not in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or
gateway.
• Set Primary DNS the same as the LAN IP address of your router or
gateway.
• The Secondary DNS is optional (you may enter a DNS server from your
ISP).
• Click OK to save your settings.
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Appendix C - Technical Specifications
Standards
• IEEE 802.11n
• IEEE 802.11g
Technical Specifications
Wireless Transmit Power
• 23 dBm (MAX**)
Bus Type
• USB 2.0 (1.1 compatible)
Operating Voltage
• 5 VDC +/- 10%
Security
• WPA/WPA2 - Wi-Fi Protected Access (TKIP, AES, MIC,
IV Expansion, Shared Key Authentication)
• WPS (PIN and PBC)
Operating Temperature
• 32°F to 104°F ( 0°C to 40°C)
Media Access Control
• CSMA/CA with ACK
Frequency Range
• 2.4GHz to 2.483GHz
Power Consumption (802.11n)
• Tx: 392 mA
• Rx: 100 mA
Operating Humidity
• 10% to 90% maximum (non-condensing)
Dimensions
• 1.1” x 3.4” x 0.5”(external antenna excluded)
Weight
• 0.06 lbs (27.22g, external antenna excluded)
Certifications
• FCC Class B
• C-Tick
Modulation Technology
• Orthogonal Frequency
Division Multiplexing (OFDM)
• Complementary Code Keying (CCK)
* Maximum wireless signal rate derived from IEEE Standard 802.11n and 802.11g specifications. Actual data throughput will vary. Network conditions
and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput
rate. Environmental factors will adversely affect wireless signal range.
** EIRP-Total effective radiated power is 23 dBm. Antenna gain will not influence wireless transmit power.
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Appendix E - Warranty
FCC Statement:
This device has been tested for compliance with FCC RF Exposure (SAR) limits in the typical laptop computer configuration and this device
can be used in desktop or laptop computers with side mounted USB ports which can provide 2 cm separation distance from the antenna
to the body of the user or a nearby person. This device cannot be used with handheld PDAs (personal digital assistants). This device and
its antenna must not be co-located or operated in conjunction with any other antenna or transmitter.
This equipment has been tested and found to comply with the limits for a Class B digital 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 equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one 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 from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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 any interference received, including interference that
may cause undesired operation.
IMPORTANT NOTICE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific
operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with
any other antenna or transmitter. IEEE 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. This
equipment has been SAR-evaluated for use in laptops (notebooks) with side slot configuration.
For detailed warranty information applicable to products purchased outside the United States, please contact the corresponding local
D-Link office.
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Appendix E - Warranty
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital 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 equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one 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 from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
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 any interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority
to operate this equipment.
IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific
operating instructions for satisfying RF exposure compliance. To maintain compliance with FCC RF exposure compliance requirements,
please follow operation instruction as documented in this manual.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
SAR compliance has been established in typical laptop computer(s) with USB slot, and product could be used in typical laptop computer
with USB slot. Other application like handheld PC or similar device has not been verified and may not compliance with related RF exposure
rule and such use shall be prohibited.
The USB dongle transmitter is approved for use in typical laptop computers. To comply with FCC RF exposure requirements, it should not
be used in other devices or certain laptop and tablet computer configurations where the USB connectors on the host computer are unable
to provide or ensure the necessary operating configurations intended for the device and its users or bystanders to satisfy RF exposure
compliance requirements.
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Appendix E - Warranty
Note to US model owner: To comply with US FCC regulation, the country selection function has been completely removed
from all US models. The above function is for non-US models only.
The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed
at the factory to match the intended destination. The firmware setting is not accessible by the end user.
以下警語適用台灣地區：
經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設
計之特性及功能。
低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停用，並改善至無干擾時
方得繼續使用。前項合法通信，指依電信法規定作業之無線電通信。低功率射頻電機須忍受合法通信或工業、科學
及醫療用電波輻射性電機設備之干擾。
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