Cisco Linksys WM54G Wireless-G Mini PCI Module User Manual Manual
Cisco-Linksys, LLC Wireless-G Mini PCI Module Manual
Manual
Wireless-G MiniPCI
Module
User Manual
Rev 0.9
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 de-
termined 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: To assure continued compliance, (example - use only
shielded interface cables when connecting to computer or peripheral
devices). Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to oper-
ate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is sub-
ject 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:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set
forth for an uncontrolled environment. This equipment should be
installed and operated with minimum distance 20cm between the
radiator & your body.
This transmitter must not be co-located or operating in conjunc-
tion with any other antenna or transmitter.
Wireless-G MiniPCI Module
ii
This device is intended only for OEM integrators under the fol-
lowing conditions:
1) The antenna must be installed such that 20 cm is maintained
between the antenna and users, and
2) The transmitter module may not be co-located with any other
transmitter or antenna.
As long as 2 conditions above are met, further transmitter test
will not be required. However, the OEM integrator is still respon-
sible for testing their end-product for any additional compliance
requirements required with this module installed (for example,
digital device emissions, PC peripheral requirements, etc.).
IMPORTANT NOTE: In the event that these conditions can not
be met (for example certain laptop configurations or co-location
with another transmitter), then the FCC authorization is no longer
considered valid and the FCC ID can not be used on the final
product. In these circumstances, the OEM integrator will be re-
sponsible for re-evaluating the end product (including the
transmitter) and obtaining a separate FCC authorization.
End Product Labeling
This transmitter module is authorized only for use in device
where the antenna may be installed such that 20 cm may be
maintained between the antenna and users (for example access
points, routers, wireless ADSL modems, and similar equipment).
The final end product must be labeled in a visible area with the
following: “Contains TX FCC ID: PKW-WM54G”.
Manual Information That Must be Included
The users manual for end users must include the following in-
formation in a prominent location “ IMPORTANT NOTE: To
comply with FCC RF exposure compliance requirements, the
antenna used for this transmitter must be installed to provide a
Preface
iii
separation distance of at least 20 cm from all persons and must
not be co-located or operating in conjunction with any other an-
tenna or transmitter.
Wireless-G MiniPCI Module
iv
Table of contents
CHAPTER 1 .................................................................................................... 1
Introduction 1
Features ............................................................................................... 1
What is Wireless LAN?......................................................................... 2
LAN Modes........................................................................................... 3
Notes on wireless LAN configuration................................................... 4
CHAPTER 2 .................................................................................................... 5
Hardware installation 5
Hardware description .......................................................................... 5
Product Outlook ................................................................................. 5
CHAPTER 3 .................................................................................................... 7
Using the Wireless Utility 7
Configuration Utility............................................................................ 7
APPENDIX A ................................................................................................ 10
Specifications..................................................................................... 10
1
Chapter 1
Introduction
Thank you for using the Wireless MiniPCI Module. This high-speed
54Mbps Wireless MiniPCI Module provides you with an innovative
wireless networking solution for your embedded system. The module
is easy to set up and use. With this innovative wireless technology,
you can share files and printers on the network—without inconvenient
wires! Now you can carry the LAN in your pocket!
This module is designed for
1. Wireless LAN Printer Server
2. Wireless LAN Ethernet Adapter
3. Wireless LAN Access Point
4. Wireless LAN Router / Gateway / Cable Modem
5. Wireless LAN Broadband Router
6. Wireless LAN Presentation Gateway
Features
• Wire-free access to networked resources from anywhere beyond
the desktop
• Low interference & high susceptibility guarantee reliable per-
formance
Wireless-G MiniPCI Module
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• Delivers data rate up to 54 Mbps
• Dynamically shifts between 11G (draft) & 11B network speed,
based on signal strength, for maximum availability and reliability
of connection
• Uses 2.4GHz frequency band, which complies with worldwide
requirement
• Used on embedded operating systems
• Ensures great security by providing the Wired Equivalent Privacy
(WEP) defined in the IEEE 802.11 standard
What is Wireless LAN?
Wireless Local Area Network (WLAN) systems offer a great num-
ber of advantages over traditional wired systems. WLANs are
flexible and easy to setup and manage. They are also more eco-
nomical than wired LAN systems.
Using radio frequency (RF) technology, WLANs transmit and re-
ceive data through the air. WLANs combine data connectivity
with user mobility. For example, users can roam from a confer-
ence room to their office without being disconnected from the
LAN.
Using WLANs, users can conveniently access shared information,
and network administrators can configure and augment networks
without installing or moving network cables.
WLAN technology provides users with many convenient and cost
saving features:
• Mobility: WLANs provide LAN users with access to real-
time information anywhere in their organization, providing
service opportunities that are impossible with wired net-
works.
—Introduction
3
• Ease of Installation: Installing is easy for novice and ex-
pert users alike, eliminating the need to install network
cables in walls and ceilings.
• Scalability: WLANs can be configured in a variety of to-
pologies to adapt to specific applications and installations.
Configurations are easily changed and range from peer-to-
peer networks suitable for a small number of users to full
infrastructure networks of thousands of users roaming over
a broad area.
LAN Modes
Wireless LANs can be configured in one of two ways:
Ad-hoc
Networking Also known as a peer-to-peer network, an ad-hoc net-
work is one that allows all workstations and computers
in the network to act as servers to all other users on
the network. Users on the network can share files,
print to a shared printer, and access the Internet with a
shared modem. However, with ad-hoc networking,
users can only communicate with other wireless LAN
computers that are in the wireless LAN workgroup, and
are within range.
Infrastructure
Networking Infrastructure networking differs from ad-hoc network-
ing in that it includes an access point. Unlike the ad-
hoc structure where users on the LAN contend the
shared bandwidth, on an infrastructure network the
access point can manage the bandwidth to maximize
bandwidth utilization.
Additionally, the access point enables users on a wire-
less LAN to access an existing wired network, allowing
wireless users to take advantage of the wired networks
resources, such as Internet, email, file transfer, and
printer sharing.
Infrastructure networking has the following advantages
over ad-hoc networking:
•
Extended ran
g
e: each wireless LAN com
p
uter
Wireless-G MiniPCI Module
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within the range of the access point can commu-
nicate with other wireless LAN computers within
range of the access point.
• Roaming: the access point enables a wireless
LAN computer to move through a building and
still be connected to the LAN.
• Wired to wireless LAN connectivity: the access
point bridges the gap between wireless LANs and
their wired counterparts.
Notes on wireless LAN configuration
When configuring a wireless LAN (WLAN), be sure to note the
following points:
• Optimize the performance of the WLAN by ensuring that
the distance between access points is not too far. In most
buildings, WLAN cards operate within a range of 100 ~
300 feet, depending on the thickness and structure of the
walls.
• Radio waves can pass through walls and glass but not
metal. If there is interference in transmitting through a wall,
it may be that the wall has reinforcing metal in its structure.
Install another access point to circumvent this problem.
• Floors usually have metal girders and metal reinforcing
struts that interfere with WLAN transmission.
5
Chapter 2
Hardware installation
This chapter covers how to installing the Wireless MiniPCI Module in
your embedded system.
Hardware description
The Wireless MiniPCI Module has a standard MiniPCI interface
for attaching to the MiniPCI connector on embedded system.
And this module has MMCX connector to connect to external an-
tenna.
Outlook
Following is the MiniPCI module outlook
Wireless-G MiniPCI Module
6
Chapter 3
Using the Wireless Utility
This module also come with a wireless utility, following describe
how to use the utility.
Configuration Utility
The following table describes the configuration utility:
State: displays the connection status.
Current Channel: displays the chan-
nel.
Current Tx Rate: displays the wire-
less bandwidth in megabits per
second.
Throughput: displays the transfer
and receive rates in bytes per second.
Link Quality: when connected to the
wired LAN, displays the connection
integrity.
Signal Strength: when connected to
the wired LAN, displays the signal
strength.
Note: Link quality and signal strength
are not available when using a peer-
to-peer connection.
7
Wireless-G MiniPCI Module
Mode: displays the current LAN
mode, either AdHoc or Infrastructure.
SSID: displays a list of Service Set
Identifications.
Ethernet Conversion: displays a list
of Ethernet conversion protocols.
Tx Rate: displays a list of transfer
rates.
WEP: allows you to enable or disable
Wired Equivalency Privacy (WEP) for
encryption, with either 64- or 128-bit
encryption.
PS Mode: allows you to enable or
disable power saving mode.
Channel: enables you to select a
transmission channel.
The Encryption window enables you
to create an encryption scheme for
Wireless LAN transmissions. Enter a
passphrase and press Generate to
automatically generate a 64- or 128-
bit key (selected from the WEP drop-
down menu in the Configuration
screen).
You can also manually enter a set of
values for each key.
Note: 128-bit encryption requires
more system resources than 64-bit
encryption. Use 64-bit encryption for
better performance.
8
Appendix B Error Messages of Enabler Program
This screen displays the version num-
ber of the Wireless LAN card and the
Configuration Utility.
9
10
Appendix A
Specifications
Standards Compliance: IEEE802.11b WLAN Standard,
IEEE802.11g Draft Standard
Type: MiniPCI
Data Rate: 802.11b: 11, 5.5, 2, 1 Mbps
802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps
Frequency: 2.412 to 2.497GHz
External Antenna: Dipole Antenna
Roaming: 802.11 compliant
Network Architectures: Infrastructure and Ad Hoc
Modulation Technique: 802.11b: CCK (11 Mbps, 5.5 Mbps), DQPSK (2
Mbps), DBPSK (1 Mbps)
802.11g: OFDM
Coverage Area: 802.11g: 54Mbps up to 50m LOS, 20m indoors
Power: Tx: 550mA @ 3.3V max.
Rx: 350mA @ 3.3V max.
Output Power: 15dBm
Receiver Sensitivity: -82dBm
Operating Environment: Temperature: 0o to 55oC
Humidity: 10% to 90%