BroMax Communications WM250 WLAN Module User Manual Manual

Download:
Mirror Download [FCC.gov]
Document ID	176255
Application ID	LEaOlWqKXm5RVsc7xo14zw==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	12.77kB (159570 bits)
Date Submitted	2001-10-26 00:00:00
Date Available	2001-10-26 00:00:00
Creation Date	2001-10-22 15:34:49
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2001-10-22 15:37:25
Document Title	Manual

11Mbps Wireless LAN
Module
Quick Guide
Rev 0.9
Regulatory Compliance
FCC 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 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.
You are cautioned that changes or modifications not expressly approved by the party responsible for compliance
could void your authority to operate the equipment.
Statements Needed to be Shown on End Product
Since this module is installed inside the end product, the end product should be affixed a label on visible area showing that this product contain a RF module, and also its FCC ID.
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.
Wireless LAN module quick guide
Table of contents
CHAPTER 1
Introduction
Features
What is Wireless LAN?
LAN Modes
Notes on wireless LAN configuration
CHAPTER 2
Hardware installation
Hardware description
Status LEDs
CHAPTER 3
Using the Wireless Utility
Installation & description
APPENDIX A
Troubleshooting
Q&A
APPENDIX B
Specifications
ii
Chapter 1
Introduction
Thank you for using the Wireless LAN module. This high-speed Wireless LAN module provides you with an innovative wireless networking solution. 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!
Features
•
•
•
•
•
•
•
•
Wire-free access to networked resources from anywhere beyond the desktop
Low interference & high susceptibility guarantee reliable performance
Delivers data rate up to 11 Mbps
Dynamically shifts between 11, 5.5, 2, and 1 Mbps network speed, based on signal strength, for maximum availability and reliability of connection
Support two external antennas with LEDs indicating Power and Link
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
Wireless LAN module quick guide
What is Wireless LAN?
Wireless Local Area Network (WLAN) systems offer a great number of advantages over traditional wired systems. WLANs are flexible and easy to setup and manage. They are also more economical than wired LAN
systems.
Using radio frequency (RF) technology, WLANs transmit and receive data through the air. WLANs combine
data connectivity with user mobility. For example, users can roam from a conference 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 networks.
•
Ease of Installation: Installing is easy for novice and expert users alike, eliminating the need to install
network cables in walls and ceilings.
•
Scalability: WLANs can be configured in a variety of topologies 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 network 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 networking in that it includes an access point. Unlike the adhoc 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
wireless 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 range: each wireless LAN computer
within the range of the access point can communicate 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.
—Introduction
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.
Chapter 2
Hardware installation
This chapter covers how to installing the wireless LAN module in your embedded system.
Hardware description
The Wireless LAN Module has a 50-pin connector for attaching to the 50-pin port of embedded system. And
please refer to the following table for these 50-pin definition.
Wireless Module 50-PIN Definition
PIN#
DEF
PIN#
DEF
PIN#
DEF
GND
21
D0
41
RESET
D3
22
D1
42
WAIT
D4
23
D2
43
INPACK/
D5
24
IOIS16/
44
REG/
D6
25
CD2/
45
SPKR
D7
26
CD1/
46
STSCHG
CE1/
27
D11
47
D8
A10
28
D12
48
D9
OE/
29
D13
49
D10
10
A9
30
D14
50
GND
11
A8
31
D15
12
A7
32
CE2/
13
VCC
33
VS1/
14
A6
34
IORD/
15
A5
35
IOWR/
16
A4
36
WE/
17
A3
37
IREQ/
18
A2
38
VCC
19
A1
39
NC
20
A0
40
VS2/
—Hardware installation
And also please refer to the following for the module’s dimension.
Wireless LAN module quick guide
Status LEDs
The following table describes the meaning of the LEDs of the module.
LED
MEANING
PWR
Indicates that the Card is powered on.
LINK
Indicates link status. It is normally blinking. When blinking, indicates that the card is scanning the channels, and
the link is not active. When lit, indicates that the card is
locked to a channel, and the link is active.
—Using the Wireless Utility
Chapter 3
Using the Wireless Utility
The following sections cover the Wireless utility installation and usage.
Installation & description
After you have installed the wireless LAN module on the system, you can install wireless utility on the client
side to check wireless status. Please follow the steps below.
1. Run SETUP.EXE, the following screen appears:
2. Click Next. The following screen appears:
3. Read the End User License Agreement and click Yes. The following screen appears:
4. Type in a System ID name for your wireless LAN. This system ID identifies all computers in the wireless LAN. Then click Next. The following screen appears:
Wireless LAN module quick guide
5. Choose the Network Mode for your wireless node.
6. Click Next. The following screen appears:
7. Select the default path for the wireless utility or browse to an alternate path. Then click Next. The following screen appears:
8. Type in a Program Folder name or select the default name and click Next. Setup installs the software
and the following screen appears:
9. Click Finish to finish the utility installation.
—Using the Wireless Utility
After you have installed the utility, you will see the wireless utility icon in the Windows taskbar:
FreePort utility icon
Double-click the icon to open the wireless utility.
Wireless LAN module quick guide
The following table describes the wireless utility:
State: displays the connection status.
Current Channel: displays the channel.
Current Tx Rate: displays the wireless 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 peerto-peer connection.
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
10
—Using the Wireless Utility
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 128bit key (selected from the WEP dropdown 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.
This screen displays the version
number of the Wireless LAN card and
the Configuration Utility.
11
Appendix A
Troubleshooting
Q&A
These guidelines give you tips to deal with some problems you may encounter while using the Wireless LAN
card.
Question: The Wireless Utility icon on system tray is always red.
Answer: Please make sure that all clients have the same SSID. The SSID is case sensitive. And set
all clients to the same wireless channel and make sure you are within range of an Access Point or
client.
Question: Can not connect to one of the clients in the network.
Answer: First of all, make sure that all clients are up and running with a green Wireless Utility icon.
And please check your TCP/IP setup is correct for your network.
12
Appendix B
Specifications
PHYSICAL SPECIFICATIONS
Product Name
Type
11Mbps Wireless LAN Module
Module
Standards
IEEE802.11b WLAN Standard
Antenna
Support two Dipole antennas
Power
DC +3.3V +/- 0.3V
Requirement
320mA / 3.3V (Max.)
Weight (g)
44g
RADIO SPECIFICATIONS
Media Access
IEEE802.11
Protocol
Bit Error Rate
1E-5 @ -83dBm
Frequency
2.4 2.4835GHz ( Industrial Scientific Medical Band )
Channels
11Channels (USA)
Data Rate
11Mbps / 5.5Mbps / 2Mbps / 1Mbps
Modulation
Direct Sequence Spread Spectrum , BPSK / QPSK / CCK
Technique
Output Power
15dBm (typical)
Receiver
–80dBm Min.
Sensitivity
Closed Space : 25m @11Mbps , 100m @5.5Mbps or lower
Coverage Area
Free Space : 50m @ 11Mbps , 115m @ 5.5Mbps or lower
ENVIRONMENTAL
Temperature
0 to 40
Relative
10% to 90%
humidity
13

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Encryption                      : Standard V1.2 (40-bit)
User Access                     : Print, Copy, Fill forms, Extract, Assemble, Print high-res
Create Date                     : 2001:10:22 15:34:49
Producer                        : Acrobat Distiller 4.05 for Windows
Modify Date                     : 2001:10:22 15:37:25+08:00
Page Count                      : 16

EXIF Metadata provided by EXIF.tools