U-MEDIA UAP300N, WUB-370L User Manual

802.11n/g/b Wireless USB Compact Adapter

Model: WUB-370L

User's Guide

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.

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.

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 NOTE:
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 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.

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CE Mark Warning

This is a Class B product. In a domestic environment, this product may cause radio
interference, in which case the user may be required to take adequate measures.

This transmitter must not be co-located or operation in conjunction with any other antenna or
transmitter.

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Table of Contents

Federal Communications Commission (FCC) Interference statement 2
CE Mark Warning 3

Chapter 1 – Wireless LAN Networking

Transmission Rate 5
Type of Wireless Networks 5

Ad-Hoc (IBSS) Network 5
Infrastructure (BSS) Network 6
Wireless LAN Security 9
Data Encryption with WEP 10

Chapter 2 - Getting Started

About Your 802.11b/g WLAN USB2.0 Adapter 11
Package Content 11
System Requirement 11
LED Definition 11
Wireless Utility and Adapter Hardware Installation 12
Using the Utility to Configure Your Network 16
Link Information 16
Site Survey 17
Profile 19

Chapter 3 – Maintenance

Uninstalling the Driver 24
Uninstall the Client Utility 24
Upgrading the Wireless Utility 24

Glossary 25

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Chapter 1- Wireless LAN Networking

This section provides background information on wireless LAN networking technology.

T

HE INFORMATION IN THIS SECTION IS FOR YOUR REFERENCE. CHANGING
NETWORK SETTINGS AND PARTICULARLY SECURITY SETTTINGS SHOULD
ONLY BE DONE BY AN AUTHORIZED ADMINISTRATOR.

Transmission Rate (Transfer Rate)

The adapter provides various transmission (data) rate options for you to select. Options
include Fully Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps,
22 Mbps, 24 Mbps, 36 Mbps, 48 Mbps, 54 Mbps and 108Mbps. In most networking
scenarios, the factory default Fully Auto setting proves the most efficient. This setting allows
your adapter to operate at the maximum transmission (data) rate. When the communication
quality drops below a certain level, the adapter automatically switches to a lower
transmission (data) rate. Transmission at lower data speeds is usually more reliable.
However, when the communication quality improves again, the adapter gradually increases
the transmission (data) rate again until it reaches the highest available transmission rate.

Types of Wireless Networks

Wireless LAN networking works in either of the two modes: ad-hoc and infrastructure. In
infrastructure mode, wireless devices communicate to a wired LAN via access points. Each
access point and its wireless devices are known as a Basic Service Set (BSS). An Extended
Service Set (ESS) is two or more BSSs in the same subnet. In ad hoc mode (also known as
peer-to-peer mode), wireless devices communicate with each other directly and do not use
an access point. This is an Independent BSS (IBSS).

To connect to a wired network within a coverage area using access points, set the adapter
operation mode to Infrastructure (BSS). To set up an independent wireless workgroup without
an access point, use Ad-hoc (IBSS) mode.

AD-HOC (IBSS) N

Ad-hoc mode does not require an access point or a wired network. Two or more wireless
stations communicate directly to each other. An ad-hoc network may sometimes be referred
to as an Independent Basic Service Set (IBSS).

To set up an ad-hoc network, configure all the stations in ad-hoc mode. Use the same SSID
and channel for each .

ETWORK

5

When a number of wireless stations are connected using a single access point, you have a
Basic Service Set (BSS).

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In the ESS diagram below, communication is done through the access points, which relay
data packets to other wireless stations or devices connected to the wired network. Wireless
stations can then access resources, such as a printer, on the wired network.

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In an ESS environment, users are able to move from one access point to another without
losing the connection. In the diagram below, when the user moves from BSS (1) to BSS (2)
the adapter automatically switches to the channel used in BSS (2).

Roaming in an ESS network diagram

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W

IRELESS

Because wireless networks are not as secure as wired networks, its vital that security
settings are clearly understood and applied.

The list below shows the possible wireless security levels on your adapter starting with the
most secure. EAP (Extensible Authentication Protocol) is used for authentication and utilizes
dynamic WEP key exchange. EAP requires interaction with a RADIUS (Remote
Authentication Dial-In User Service) server either on the WAN or the LAN to provide
authentication service for wireless stations.

1. Wi-Fi Protected Access (WPA)

2. IEEE802.1X EAP with RADIUS Server authentication

3. WEP Encryption

4. Unique ESSID

LAN S

ECURITY

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