User’s Manual
Version 1.7
54M/150M/300Mbps
USB WIRELESS ADAPTER
User’s Manual Wireless USB Adapter
Introduction
Thank you for purchasing the IEEE 802.11b/g or
802.11n Wireless USB Adapter. This Wireless Adapter is
easy to use and easy to setup. If you have been tired of
dealing with all those messy wires to connect a laptop or
PC to office or home network, this Wireless adapter is an
ideal access solution for wireless Internet connection.
A typical Internet access application for the USB
wireless adapter is shown as the following figure:
There are two different ways to access Internet:
1. With a wireless adaptor, receiving and transferring
signal via a wireless router, then passed to an ADSL
modem, then to local ISP (Internet service supplier)
through a telephone line.
2. With a wireless adaptor, receiving and transferring
signal via local AP (Access Point) or so called
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User’s Manual Wireless USB Adapter
Hotpoint directly.
Tips: An 802.11 LAN is based on a cellular architecture
where the system is subdivided into cells, where each
cell (called Basic Service Set or BSS) is controlled by a
Base Station (called Access Point, or in short AP).
Package Contents:
z One 54 Mbps 802.11b/g or 150Mbps or 300Mbps
802.11n USB Wireless Adapter.
z Adapter Installation disc.
z User’s Manual.
z Antenna (optional)
Warranty
The warrants for the end user (“Customer”) that this
hardware product will be free from defects in
workmanship and materials, under normal use and
service, for twelve (12) months from the date of purchase
from its authorized reseller. Information in this document
is subject to change without prior notice.
Installation
To install the driver of the USB adapter, please use
administrator user account to login before the following
steps:
Tips: the latest original drivers can be down loaded
from the website of Ralink chipset manufacturer. The
current website is http://www.ralink.com.tw/support.php.
To find a correct driver, please identify the chipset type
applied in the adapter you have.
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User’s Manual Wireless USB Adapter
1. For a 54Mbps 802.11b/g or a 150Mbps or
300Mbps 802.11n adapter, double click
Ralink_***.exe program, which is located in the
driver folder in the installation disc. Such as: G:\WiFi
Driver\Windows Driver\ RT2070_RT307X.exe.
Notes: Because Ralink often updates software,
the drivers contained in the disc might be changed
without prior notice.
2. Follow the instructions and prompts of the
“InstallShield Wizard” to finish the driver installation:
a. Select the “I accept the terms of the license
agreements”, then click the “Next”.
b. There shows a setup type window, you can select
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User’s Manual Wireless USB Adapter
“Install driver only” or “Install driver and Ralink
WALN utility” and then click the “Next”.
Tips:
1).The Windows XP utilizes a "Wireless Zero
Configuration( WZC)" Service built into the
operating system. Many wireless network adapter
cards utilize this service.
2). Ralink- the chipset manufacturer has developed
an utility for setting up wireless connection. If you
select this item, you can switch between the
Windows XP’s WZC service and the Ralink
WLAN utility service later.
c. Click the “Install” to confirm the installation, there
shows the installation progress.
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User’s Manual Wireless USB Adapter
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User’s Manual Wireless USB Adapter
d. Click “finish” to finish the driver installation.
Wireless Connection
1. After finishing driver installation, insert the USB
adapter to Notebook or PC that supports USB 2.0/1.1
interface.
Remarks: Make sure to connect the adapter to an
USB port on your computer directly rather than an
USB hub. Although it might work when connecting
with an USB hub, the likelihood of configuration
problems will be higher.
2. The system shows a wireless utility icon in the
Windows system tray, which locates in the
bottom-right corner of your computer screen, and pops
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User’s Manual Wireless USB Adapter
up a message that indicates a new hardware is found
and installed, something like this:
Should the service " Wireless Zero
Should the service " Wireless Zero
Configuration ( WZC)" be applied.
1. Double-click the utility icon or right click the icon and
then select “View Available Wireless Networks” to
launch the utility, the Wireless Network Connection
window appears and displays your wireless network
listed with the SSID you chose.
Notes: Before configuring your WiFi access, you need
to have your network’s SSID (service set identifier),
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security key and authentication type handy. Check the
documentation coming with your router, ask your
network administrator to get the information.
2. If you don't see your network, click “Refresh network
list” in the upper left corner. If you are locating within
the valid range of hotspots or wireless routers, all
available networks will be recognized and listed
automatically. Click your preferred network, and then
click “Connect” in the lower right corner.
3. If the network security key hasn’t been inputted
before, Windows XP prompts you to enter the
network’s security key to access the wanted SSID.
Type the encryption key that you wrote down earlier in
both the Network key and Confirm network key boxes,
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User’s Manual Wireless USB Adapter
and then click “Connect”.
Tips:
If there are free hotspots, simply select the network
you want from the list displayed, then click Connecting.
It tries to launch your Internet browser —you should
be connected to the Internet.
If there is a pay hotspot, signing in or up will require
either to enter your login information-if you‘re an
existing customer, or to enter your credit card
information for payment, it is just decided by you. Then
clicking the Connecting, your default Internet browser
will launch and take you to the service provider’s login
page. Most providers have very simple and
step-by-step instructions for you to sign up and then to
be connected. Another way to access the service
provider’s login page is to simply launch your Internet
browser, if there’s a pay network available, you’ll be
taken directly to the login page.
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Should the service of Ralink wireless
connection utility be applied.
After the installation of Ralink utility, the system shows
a special wireless utility icon in the Windows system tray,
which locates in the bottom-right corner of your computer
screen:
The icon changes colors according to the wireless
signal quality，when an USB wireless adapter is inserted
into an USB 2.0/1.1 port of Notebook or PC.
1. Double-click the icon or right click the icon and then
select “Launch Config Utility” to launch the utility, the
RaUI window appears like:
The Ralink wireless utility starts in compact mode
as shown above, provides profile management, the
available networks listing, a statistical counter display,
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Wi-Fi multimedia (WMM), protected Wi-Fi setup, Cisco
compatible extensions (CCX), call admission control
(CAC), radio controls, Ralink driver/utility information,
and help functions.
2. Clicking the expanding icon
full mode as shown below:
can change to the
For more details about the RaUI utility, please
read the help information of the utility by clicking
the
tab
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User’s Manual Wireless USB Adapter
Tips for Wi-Fi users
With a Wi-Fi connection, you can roam about 150 m
around the access point (depends on different
environment), so find a spot where you can work
without any interruption. Then see how much work you
can do, such as:
z Easily and quickly receive and transmit files within
your local network — no problem for big files.
z Access your email and surf the web with the same
speed as that connected with network cables.
z Synchronize data between devices.
z Take advantage of wireless printing — send files
directly from your laptop PC to a wireless printer
over Wi-Fi connection.
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Warning
Wi-Fi offers greater speed and range than Bluetooth,
but it drains your portable device batteries a lot faster
than Bluetooth does. In fact, if you use a Wi-Fi
connection regularly on your laptop PC, you'll
undoubtedly notice that you need to recharge more
often. If you need to conserve battery life — on a long
trip for example — turn off your Wi-Fi connection when
you don't actually need it.
Security
Because wireless networks rely on radio signals to
transmit data, they are not as secure as wire network.
Wireless networks are susceptible to viruses and
breaches like eavesdropping and need to be protected
in order to be secure.
There are many security measures to safeguard
wireless networks, protect the data, and keep
unauthorized users out. Hotspots, on the other hand,
are often free of standard security practices in an effort
to make it easy for anyone to connect. It may be found
that some pay hotspots administered by service
providers offer have some level of security, however,
when using a hotspot, it’s always a good idea to be
proactive and to employ security measures of your
own.
Key terms
Wi-Fi: Short for “wireless fidelity,” a generic label that
refers to wireless networks or networking.
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Hotspot: A specific geographic location in which an
access point provides public wireless
broadband network services to mobile visitors
through a WLAN.
Throughput: The amount of data transmitted in a set
amount of time.
Bandwidth: the amount of data that can be carried
from one point to another in a given time period
(usually a second).
Chipset: A group of microchips that execute various
functions (like memory) to support the CPU.
Specifications (Typical):
Protocol and
Standards
Interface USB1.1, USB2.0
Frequency
Band
Data Rate
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IEEE 802.11b/g or 802.11n
2.412~2.4835GHz (Depends on
different countries’ regulation)
For 802.11b/g:
Peak rate 54Mbps, Peak
throughput: 27Mbps.
For 802.11n
1T1R. Peak rate: 150Mbps, Peak
throughput: 90Mbps
1T2R. Peak rate: 300Mbps, Peak
throughput: Rx 160Mbps
2T2R. Peak rate: 300Mbps,
Peak throughput: Rx 260Mbps
User’s Manual Wireless USB Adapter
Transmit
Power
802.11b: 19dBm; 802.11g:15dBm ;
802.11n: 14dBm.
Data Security WEP 64/128 , WPA, WPA2, 802.1X
It depends on different adapter
Power
Consumption
Transmission
Distance
Environment
Operating
System
models, there are two typical
values: 330mA and 110mA in full
Transmit (TX), 290mA and 95mA in
full Receive (RX) .
Indoor up to 100m, outdoor up to
300m (Standard transmission
distance, it is affected depending
on different environment).
Operating Temperature: 0°C~50°C
Storage Temperature: -20~70°C
Operating Humidity: 10%~90%
non-condensing.
Storage Humidity: 5%~95%
non-condensing.
It supports Windows
CE/2000/XP/Vista/7; Linux; Mac
OS X.
The drivers might be supplied
basing on one or two system.
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User’s Manual Wireless USB Adapter
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.
Changes or modifications not expressly approved by the part y
responsible for compliance could void the user's authority to
operate the equipment.
NOTE: 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 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
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different
from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician
for help.
RF warning statement:
The device has been evaluated to meet general RF
exposure requirement. The device can be used in
portable exposure condition without restriction.
Your USB WIFI is a radio transmitter and receiver. It is
designed and manufactured not to
exceed the emission limits for exposure to
radiofrequency (RF) energy set by the Federal
Communications Commission of the U.S. Government.
These limits are part of comprehensive
guidelines and establish permitted levels of RF energy
for the general population. The guidelines
are based on standards that were developed by
independent scientific organizations through
periodic and thorough evaluation of scientific studies.
The standards include a substantial safety
margin designed to assure the safety of all persons,
regardless of age and health. The exposure
standard for wireless mobile USB WIFIs employs a unit
of measurement known as the Specific
Absorption Rate, or SAR. The SAR limit set by the FCC
is 1.6 W/kg.
Tests for SAR are conducted with the USB WIFI
transmitting at its highest certified power level in all
tested frequency bands. Although the SAR is determined
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User’s Manual Wireless USB Adapter
at the highest certified power level, the
actual SAR level of the USB WIFI while operating can be
well below the maximum value. This is
because the USB WIFI is designed to operate at multiple
power levels so as to use only the power
required to reach the network. In general, the closer you
are to a wireless base station antenna, the
lower the power output. Before a USB WIFI model is
available for sale to the public, it must be tested
and certified to the FCC that it does not exceed the limit
established by the government adopted
requirement for safe exposure. The tests are performed
in positions and locations (e.g., at the ear
and worn on the body) as required by the FCC for each
model. The highest SAR value for this
model USB WIFI when tested for use at the body is
0.264 W/Kg While there may be
differences between the SAR levels of various USB WIFI
and at various positions, they all meet the
government requirement for safe exposure. The FCC
has granted an Equipment Authorization for
this model USB WIFI with all reported SAR levels
evaluated as in compliance with the FCC RF
exposure guidelines. SAR information on this model
USB WIFI is on file with the FCC and can be found under
the Display Grant section of http://www.fcc.gov/ oet/fccid
after searching on FCC ID: ZLJRT5370S03.
Additional information on Specific Absorption Rates
(SAR) can be found on the Cellular
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Telecommunications Industry Asso-ciation (CTIA)
web-site at http://www.wow-com.com. * In the
United States and Canada, the SAR limit for mobile USB
WIFI used by the public is 1.6 watts/kg
(W/kg) averaged over one gram of tissue. The standard
incorporates a sub-stantial margin of safety
to give additional protection for the public and to account
for any variations in measurements.
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