NetComm Network Card NP643 User Manual

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INTRODUCTION  
Congratulations on your purchase of the NP643 108Mbps IEEE 802.11g Wireless PC  
Card Adapter.  
This manual is designed to help familiarise users with the product and offers detailed  
operational and installation instructions, so please keep it for future reference.  
With the NP643 Wireless (IEEE 802.11g) PC Card Adapter, a laptop or notebook  
computer can communicate with another computer wirelessly. User friendly Utility  
software is bundled with the NP643 product providing configuration, monitoring and  
diagnostic options.  
The NP643 can wirelessly transmit and receive data at a speed of 108 megabits per  
second, which is up to 15 times the speed of previous wireless devices. The NP643 is  
designed to handle bandwidth intensive applications and heavy multimedia content. Its  
compact design reduces cable and wire clutter around the workspace while providing fast  
secure network transfer rates.  
The NP643 has the most advanced security features available today with 128 Bit WEP  
encryption and WPA security.  
The Wireless PC Card Adapter is easy to configure for peer-to-peer networks, suitable for  
a small number of users, or for full infrastructure networks that allow broad area roaming.  
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System Requirements  
• Laptop computer with an available 32 bit Cardbus slot  
• Windows 98SE/ME/2000/XP/2003  
• 128 MB memory and a 500MHz Processor  
• CR-ROM Drive  
• 20Mb spare disk storage  
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Wireless Terminology  
Wireless Standards  
802.11, 802.11b and 802.11g all refer to a series of standards which govern a common  
method of creating wireless local area networks (WLANs).  
802.11b and 11g are the most common WLAN types, with 11g being the later and faster  
of the two standards with a maximum transmission rate of 54Mbps.  
The NP643 is faster again as it is built around a processor which ‘turbo-charges’  
transmission rates up to 108Mbps.  
802.11g is ‘backward compatible’ with 802.11b, which means that the two standards are  
able to communicate, albeit at the lower 11Mbps rate of the 11b standard.  
The NP643 can communicate with both kinds of device at their maximum rate, and with  
other ‘turbo-charged’ devices at the much higher rate of 108Mbps.  
Wireless Security Terms  
The Advanced Features of the NP643 include the ability to select from several types of  
Wireless Security.  
WEP  
WEP stands for Wired Equivalent Privacy. Introduced with  
802.11b, WEP uses encryption to protect data confidentiality  
by way of pre-shared keys (passwords or pass-phrases) that are  
entered at both ends. Superseded by WPA and 802.11i but still in  
use.  
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WPA  
WPA stands for Wi-Fi Protected Access - authorizes and  
identifies users based on a secret key that changes automatically  
at a pre-defined interval. This is called TKIP (Temporal Key  
Integrity Protocol) to change the temporal key every 10,000  
packets (= unit of data.) Keys can either be pre-shared or  
established by a RADIUS Server.  
RADIUS  
RADIUS is part of 802.11i security; this is a wireless standard  
which is only concerned with wireless security standards.  
Authentication is based around a secure server with a challenge-  
and-response method of interaction which verifies the identity  
of the client wishing to connect to the network. If you wish to  
connect to a RADIUS server ask the Network Administrator for  
details. RADIUS servers are not usually used as part of home  
networks.  
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GETTING TO KNOW YOUR NP643  
This chapter provides unpacking and setup information for the NP643 Wireless PC Card  
Adapter.  
Package Contents  
Open the box of the Wireless PC Card Adapter and carefully unpack it. The box should  
contain the following items:  
One 108Mbps IEEE 802.11g Wireless PC  
Card Adapter  
One Driver & Utility with User’s Guide  
CD-ROM  
If any item is found missing or damaged, please contact your local reseller for  
replacement.  
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NP643 LED Indicators  
LED  
Indicator  
Power (PWR)  
The PWR indicator lights green to indicate that it is receiving  
power from the PC Card slot. If the PWR indicator light is off, it is  
not receiving power.  
ACT (Activity)  
The ACT indicator blinks green while the Wireless PC Card is  
transmitting data.  
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SOFTWARE INSTALLATION  
This section will guide you through the driver and utility installation procedure for the  
NP643.  
Windows 98se/ME/2000/XP Utility and Driver Installation  
1. Insert the Driver & Utility CD-ROM into the CD-ROM Drive. The driver and utility  
setup menu should start up and install the driver. In some cases you may need to  
install the software manually. This depends on your operating system settings. Go to  
your Windows Start menu and choose Run, type “D:\Utility\Setup.exe” in the dialog  
box (where D:\ will depend on where your CD-ROM drive is located) and click OK.  
2. If you need to install the driver manually, refer your Windows Operating System (OS)  
to the following CD-Rom directory path: D:\Driver\<Windows OS>\net5211.inf.  
Note:  
(D:\ will depend on where the CD-ROM drive is located and  
<Windows OS> will depend on the Windows OS you are using).  
3. The Install Shield Wizard screen will appear. Click “Next” to continue.  
4. The installation program will help you setup the Wireless PC Card utility.  
Note:  
Windows XP has its own Wireless Utility; you can either use the  
utility of Windows XP or the provided utility.  
5. Once the Wireless PC Card Adapter is installed, you will find a new icon on the win-  
dows task bar. The colour of the icon represents the strength of the wireless signal.  
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Icon  
Description  
If the icon is completely green, you have excellent coverage and  
performance.  
If the icon is yellow, the signal strength has a fair coverage and  
performance.  
If the icon has no color, signal strength is poor.  
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HARDWARE INSTALLATION  
Installation Check  
The LEDs of the Wireless PC Card Adapter are clearly visible and the status of the  
network link can be seen instantly:  
1. Once the device is plugged in to the PC Card slot, the Power LED will light up indi-  
cating a normal status.  
2. Once the driver is installed, the ACTIVE and POWER LED’s will start flashing. This  
means the adapter is starting to scan for other wireless devices within its range.  
3. While the Wireless PC Card Adapter is connected and transmitting data to an Access  
Point or to another Wireless LAN station, the Active LED will start blinking.  
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USING THE WIRELESS UTILITY  
I. Link Information  
Launch the utility program by double clicking the utility icon in the Windows task bar.  
The default page is as below after launching the Utility program.  
Field  
Description  
Status:  
Shows the BSSID (or Mac address) of the adaptor, which can be  
used to identify it on the wireless network.  
SSID:  
Shows current SSID, which must be the same for the all wireless  
devices in order for communication to be established.  
Frequency:  
Shows the current frequency used for the wireless network.  
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Field  
Description  
Wireless Mode:  
Shows the current wireless mode used for wireless  
communication.  
Encryption:  
TxRate:  
Shows the current encryption mode used in the wireless network.  
Shows the current data rate used for transmitting.  
Shows the current communication channel.  
Channel:  
Link Quality:  
Shows the link quality of the NP643 Wireless PC card with the  
Access Point when operating under Infrastructure mode.  
Signal Strength:  
Data Rate:  
Shows the strength of the wireless signal between the NP643  
Wireless PC card and the Access Point.  
Shows the statistics of the data transfer rate. The calculation is  
based on the number of packets transmitted and received.  
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II. Configuration  
In the configuration page you can change the basic settings of the PC card to implement a  
secure wireless network.  
Field  
Description  
SSID:  
Service Set Identifier, which is a unique name shared among  
all clients and nodes in a wireless network. The SSID must be  
identical for each client and node in the wireless network. Give  
your network a name which you will remember but which does  
not obviously identify it to the outside world.  
Wireless Mode:  
There are two types available for selection:  
Infrastructure – to establish wireless communication with  
the LAN and other wireless clients through the use of Access  
Points.  
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Field Description  
Ad-Hoc – to establish peer-to-peer wireless communication  
directly with other wireless client devices such as other  
computers with wireless cards.  
Ad-Hoc Band:  
Channel:  
There are three bands available for selection- 11B, 11G and 11G  
Turbo. Choice depends on the type of wireless equipment you  
wish to connect to. Check the documentation of the associated  
equipment to verify details.  
The channel value that the PC card will operate in. Australian  
Users should select the Channel Range 1-13 and all stations  
on the WLAN need to be on the same channel if they are to  
communicate.  
Tx Rate:  
Select the data rate for data transmission.  
There are 3 modes to choose from:  
Power Mode:  
Continuous Access Mode (default) – the PC card is  
constantly operating with full power and it consumes the most  
power.  
Maximum Power Save – the PC card consumes the least  
power and only operates when there is wireless network  
activity.  
Power Save – the PC card consumes a moderate level of  
power.  
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Field  
Description  
Preamble:  
Select Long Preamble or Short & Long Preamble type. Leave as  
default unless advised otherwise by your Network Administrator.  
Support Band:  
There are three functions for you to select, including 11B, 11G and  
eXtended Range. The default setting is 11B, 11G and eXtended  
Range enabled, which is interoperable with both 11B and 11G  
devices, and provides a connectivity range of 500m.  
Note:  
You must select at least 11B or 11G to support your wireless  
connection.  
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III. Advanced  
In the Advanced page you can configure advanced settings for the 108Mbps wireless LAN  
PC card.  
Field  
Description  
Encryption:  
There are four options available: Disable (WEP), Enable  
(WEP), WPA and WPA-PSK. The default setting is set to  
“Disable”. Enable and Disable refer to WEP data encryption  
feature. If Enable is selected, you will be required to select the  
Authentication mode from the drop down list. If WPA is selected,  
configuration is enabled. Select the “configuration” button.  
You will then be prompted with the following pop up window.  
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Select the certificate that you wish to use and enter the server  
name and login name; this refers to RADIUS Server technology  
which is generally not in use in the home environment; check with  
your Network Administrator if you are required to enter this in  
order to log on to a secure network.  
If WPA-PSK is selected, click the configuration button. You will  
then be prompted with the following pop up window.  
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Field  
Description  
Please enter a key. If you are joining an existing network, ask the  
Administrator for the key. If you are setting up the network, create  
a key; any combination of letters and numbers up to 32 characters  
with no spaces.  
Auth. Mode:  
There are three modes available to choose from:  
Open Authentication – the sender and receiver do not share  
a secret Key for communication. Instead, each party generates  
its own key-pairs and asks the other party to accept it. The key  
is regenerated when the connection is established every time.  
Shared Authentication – the sender and receiver shares the  
common key for data communication, and the key is used for  
extended length of time.  
Auto – requires communication to be established, and  
automatically use the proper authentication mode.  
The following will only be activated to allow for configuration  
when Encryption is enabled.  
Default Key:  
Select one of the 4 keys to use.  
Network Key:  
Choose the encryption, either in HEX or ASCII formats, and enter  
the password in the blank space.  
Key Length:  
Key Format:  
Select 64 or 128 bits as the length of the keys  
ASCII or HEX  
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IV. Site Survey  
This page allows you to enable the site survey function, which scans for available wireless  
networks (wireless clients & access points) and establishes a wireless communication  
with one.  
Field  
Description  
Available Network: Displays the wireless networks (wireless clients and Access  
Points) that are in your signal range.  
Select any one of them to establish communications by simply  
double-clicking or by clicking on the “Connect” button.  
Click the “Refresh” button to start scanning for available networks  
again.  
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Field  
Description  
Profile:  
You can create and manage profiles for Home, offices or public  
areas. Double-Click on one of the created profiles. The settings  
will adapt to the configuration such as SSID, channel, and WEP  
settings saved by that particular profile.  
Remove:  
Properties:  
Add:  
To remove the selected profile  
To view and change settings.  
To add a profile. You will be prompted with the following popup  
screen. You can enter the necessary information required for  
accessing Access Points or Wireless Router.  
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V. About  
This page displays some information about the NP643 108Mbps Wireless PC Card  
Adapter. It contains the Driver & Utility Version as well as the MAC address. This  
feature is useful when you need to identify utility and driver versions as updates become  
available.  
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APPENDIX A: Glossary  
Access Point:  
An internetworking device that seamlessly connects wired and  
wireless networks.  
Ad-Hoc:  
An independent wireless LAN network formed by a group of  
computers, each with a network adapter.  
AP Client:  
One of the additional AP operating modes offered by a 54Mbps  
Access Point, which allows the Access Point to act as an Ethernet-  
to-Wireless Bridge, thus a LAN or a single computer station can join  
a wireless ESS network through it.  
ASCII:  
American Standard Code for Information Interchange, ASCII, is one  
of the two formats that you can use for entering the values for WEP  
key. It represents English letters as numbers from 0 to 127.  
Authentication Type:  
Indication of an authentication algorithm which can be supported by  
the Access Point.  
Open System: Open System authentication is the simplest of  
the available authentication algorithms. Essentially it is a null  
authentication algorithm. Any station that requests authentication  
with this algorithm may become authenticated if 802.11  
Authentication Type at the recipient station is set to Open System  
authentication.  
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Shared Key: Shared Key authentication supports authentication of  
stations as either a member of those who knows a shared secret  
key or a member of those who does not.  
Backbone:  
Bandwidth:  
Beacon:  
The core infrastructure of a network, which transports information  
from one central location to another where the information is  
unloaded into a local system.  
The transmission capacity of a device, which is calculated by  
how much data the device can transmit in a fixed amount of time  
expressed in bits per second (bps).  
A beacon is a packet broadcast by the Access Point to keep the  
network synchronized. Included in a beacon are information such  
as wireless LAN service area, the AP address, the Broadcast  
destination addresses, time stamp, Delivery Traffic Indicator Maps,  
and the Traffic Indicator Message (TIM).  
Bit:  
A binary digit, which is either -0 or -1 for value, is the smallest unit  
for data.  
Bridge:  
Browser:  
BSS:  
An internetworking function that incorporates the lowest 2 layers of  
the OSI network protocol model.  
An application program that enables one to read the content and  
interact in the World Wide Web or Intranet.  
BSS stands for “Basic Service Set”. It is an Access Point and all the  
LAN PCs that associated with it.  
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Channel:  
The bandwidth which wireless Radio operates is divided into  
several segments, which we call them “Channels”. AP and the client  
stations that it associated work in one of the channels.  
CSMA/CA:  
In local area networking, this is the CSMA technique that combines  
slotted time -division multiplexing with carrier sense multiple access/  
collision detection (CSMA/CD) to avoid having collisions occur a  
second time. This works best if the time allocated is short compared  
to packet length and if the number of situations is small.  
CSMA/CD:  
Carrier Sense Multiple Access/Collision Detection, which is a  
LAN access method used in Ethernet. When a device wants to  
gain access to the network, it checks to see if the network is quiet  
(senses the carrier). If it is not, it waits a random amount of time  
before retrying. If the network is quiet and two devices access  
the line at exactly the same time, their signals collide. When the  
collision is detected, they both back off and wait a random amount  
of time before retrying.  
DHCP:  
Dynamic Host Configuration Protocol, which is a protocol that lets  
network administrators manage and allocate Internet Protocol  
(IP) addresses in a network. Every computer has to have an IP  
address in order to communicate with each other in a TCP/IP based  
infrastructure network. Without DHCP, each computer must be  
entered in manually the IP address. DHCP enables the network  
administrators to assign the IP from a central location and each  
computer receives an IP address upon plugged with the Ethernet  
cable everywhere on the network.  
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DSSS:  
Direct Sequence Spread Spectrum. DSSS generates a redundant  
bit pattern for each bit to be transmitted. This bit pattern is called  
a chip (or chipping code). The longer the chip, the greater the  
probability that the original data can be recovered. Even if one or  
more bits in the chip are damaged during transmission, statistical  
techniques embedded in the radio can recover the original data  
without the need for retransmission. To an unintended receiver,  
DSSS appears as low power wideband noise and is rejected  
(ignored) by most narrowband receivers.  
Dynamic IP Address: An IP address that is assigned automatically to a client station in a  
TCP/IP network by a DHCP server.  
Encryption:  
A security method that uses a specific algorithm to alter the data  
transmitted, thus prevent others from knowing the information  
transmitted.  
ESS:  
ESS stands for “Extended Service Set”. More than one BSS is  
configured to become Extended Service Set. LAN mobile users can  
roam between different BSSs in an ESS.  
ESSID:  
The unique identifier that identifies the ESS. In infrastructure  
association, the stations use the same ESSID as AP’s to get  
connected.  
Ethernet:  
A popular local area data communications network, originally  
developed by Xerox Corp., that accepts transmission from  
computers and terminals. Ethernet operates on a 10/100 Mbps  
base transmission rate, using a shielded coaxial cable or over  
shielded twisted pair telephone wire.  
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Fragmentation:  
When transmitting a packet over a network medium, sometimes  
the packet is broken into several segments, if the size of packet  
exceeds that allowed by the network medium.  
Fragmentation  
Threshold:  
The Fragmentation Threshold defines the number of bytes used for  
the fragmentation boundary for directed messages. The purpose of  
“Fragmentation Threshold” is to increase the transfer reliability thru  
cutting a MAC Service Data Unit (MSDU) into several MAC Protocol  
Data Units (MPDU) in smaller size. The RF transmission can not  
allow to transmit too big frame size due to the heavy interference  
caused by the big size of transmission frame. But if the frame size is  
too small, it will create the overhead during the transmission.  
Gateway:  
HEX:  
A device that interconnects networks with different, incompatible  
communication protocols.  
Hexadecimal, HEX, consists of numbers from 0 – 9 and letters from  
A – F.  
IEEE:  
The Institute of Electrical and Electronics Engineers, which is  
the largest technical professional society that promotes the  
development and application of electrotechnology and allied  
sciences for the benefit of humanity, the advancement of the  
profession. The IEEE fosters the development of standards that  
often become national and international standards.  
Infrastructure:  
An infrastructure network is a wireless network or other small  
network in which the wireless network devices are made a part of  
the network through the Access Point which connects them to the  
rest of the network.  
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ISM Band:  
The FCC and their counterparts outside of the U.S. have set aside  
bandwidth for unlicensed use in the ISM (Industrial, Scientific and  
Medical) band. Spectrum in the vicinity of 2.4GHz, in particular, is  
being made available worldwide.  
MAC Address:  
Media Access Control Address is a unique hex number assigned  
by the manufacturer to any Ethernet networking device, such  
as a network adapter, that allows the network to identify it at the  
hardware level.  
Multicasting:  
Sending data to a group of nodes instead of a single destination.  
Multiple Bridge:  
One of the additional AP operating modes offered by 54Mbps  
Access Point, which allows a group of APs that consists of two or  
more APs to connect two or more Ethernet networks or Ethernet  
enabled clients together. The way that multiple bridge setups is  
based on the topology of Ad-Hoc mode.  
Node:  
A network junction or connection point, typically a computer or  
workstation.  
Packet:  
A unit of data routed between an origin and a destination in a  
network.  
PLCP:  
PPDU:  
Physical layer convergence protocol  
PLCP protocol data unit  
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Preamble:  
The ‘preamble’ is a sequence of bits transmitted at 1Mbps that  
synchronises wireless transmission within the network. The Short  
Preamble and header may be used to minimize overhead and,  
thus, maximize the network data throughput. However, the Short  
Preamble is supported only by the IEEE 802.11b (High- Rate)  
standard and not by the original IEEE 802.11standard; meaning that  
stations using Short-Preamble cannot communicate with stations  
implementing the original version of the protocol.  
PSDU:  
PLCP service data unit  
Roaming:  
A LAN mobile user moves around an ESS and enjoys a continuous  
connection to an Infrastructure network.  
RTS: Request  
To Send. An RS-232 signal sent from the transmitting station to the  
receiving station requesting permission to transmit.  
RTS Threshold:  
Transmitters contending for the medium may not be aware of each  
other. RTS/CTS mechanism can solve this “Hidden Node Problem”.  
If the packet size is smaller than the preset RTS Threshold size, the  
RTS/CTS mechanism will NOT be enabled.  
SSID:  
Service Set Identifier, which is a unique name shared among all  
clients and nodes in a wireless network. The SSID must be identical  
for each clients and nodes in the wireless network.  
Subnet Mask:  
The method used for splitting IP networks into a series of sub-  
groups, or subnets. The mask is a binary pattern that is matched up  
with the IP address to turn part of the host ID address field into a  
field for subnets.  
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TCP/IP:  
Transmission Control Protocol/ Internet Protocol. The basic  
communication language or protocol of the Internet. It can also be  
used as a communications protocol in a private network, i.e. intranet  
or internet. When you are set up with direct access to the Internet,  
your computer is provided with a copy of the TCP/IP program just  
as every other computer that you may send messages to or get  
information from also has a copy of TCP/IP.  
Throughput:  
WEP:  
The amount of data transferred successfully from one point to  
another in a given period of time.  
Wired Equivalent Privacy (WEP) is an encryption scheme used to  
protect wireless data communication. To enable the icon will prevent  
other stations without the same WEP key from linking with the AP.  
Wireless Bridge:  
One of the additional AP operating modes offered by 54mpbs  
Access Point, which allows a pair of APs to act as the bridge  
that connects two Ethernet networks or Ethernet enabled clients  
together.  
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APPENDIX B: Registration and Warranty Information  
All NetComm Limited (“NetComm”) products have a standard 12 month warranty from date of purchase  
against defects in manufacturing and that the products will operate in accordance with the specifications  
outlined in the User Guide. However some products have an extended warranty option (please refer  
to your packaging). To be eligible for the extended warranty you must supply the requested warranty  
information to NetComm within 30 days of the original purchase by registering on-line via the NetComm  
web site at:  
www.netcomm.com.au  
Contact Information  
If you have any technical difficulties with your product, please do not hesitate to contact NetComm’s  
Customer Support Department.  
Email:  
Fax:  
(+612) 9424-2010  
Web:  
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Copyright Information  
This manual is copyright. Apart from any fair dealing for the purposes of private study, research, criticism  
or review, as permitted under the Copyright Act, no part may be reproduced, stored in a retrieval system  
or transmitted in any form, by any means, be it electronic, mechanical, recording or otherwise, without the  
prior written permission of NetComm Limited. NetComm Limited accepts no liability or responsibility, for  
consequences arising from the use of this product. Please note that the images used in this document  
may vary slightly from those of the actual product. Specifications are accurate at the time of the  
preparation of this document but are subject to change without notice.  
NetComm Limited reserves the right to change the specifications and operating details of this product  
without notice. NetComm is a registered trademark of NetComm Limited. All other trademarks are  
acknowledged the property of their respective owners.  
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NP643IEEE 802.11g PC Card Adapter  
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YML786 Rev1  
 
Customer Information  
ACA (Australian Communications Authority) requires you to be aware of the following information and  
warnings:  
(1) This unit shall be connected to the Telecommunication Network through a line cord which meets the  
requirements of the ACA TS008 Standard.  
(2) This equipment has been tested and found to comply with the Standards for C-Tick and or A-Tick  
as set by the ACA. These standards are designed to provide reasonable protection against harmful  
interference in a residential installation. This equipment generates, uses, and can radiate radio noise  
and, if not installed and used in accordance with the instructions detailed within this manual, may  
cause interference to radio communications. However, there is no guarantee that interference will  
not occur with the installation of this product in your home or office. If this equipment does cause  
some degree of interference to radio or television reception, which can be determined by turning the  
equipment off and on, we encourage the user to try to correct the interference by one or more of the  
following measures:  
Change the direction or relocate the receiving antenna.  
Increase the separation between this equipment and the receiver.  
Connect the equipment to an alternate power outlet on a different power circuit from  
that to which the receiver/TV is connected.  
Consult an experienced radio/TV technician for help.  
(3) The power supply that is provided with this unit is only intended for use with this product. Do not use  
this power supply with any other product or do not use any other power supply that is not approved  
for use with this product by NetComm. Failure to do so may cause damage to this product, fire or  
result in personal injury.  
NP643 IEEE 802.11g PC Card Adapter  
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33  
YML786 Rev1  
 
Product Warranty  
The warranty is granted on the following conditions:  
1. This warranty extends to the original purchaser (you) and is not transferable;  
2. This warranty shall not apply to software programs, batteries, power supplies, cables or other acces-  
sories supplied in or with the product;  
3. The customer complies with all of the terms of any relevant agreement with NetComm and any other  
reasonable requirements of NetComm including producing such evidence of purchase as NetComm  
may require;  
4. The cost of transporting product to and from NetComm’s nominated premises is your responsibility;  
and,  
5. NetComm does not have any liability or responsibility under this warranty where any cost, loss, injury  
or damage of any kind, whether direct, indirect, consequential, incidental or otherwise arises out of  
events beyond NetComm’s reasonable control. This includes but is not limited to: acts of God, war,  
riot, embargoes, acts of civil or military authorities, fire, floods, electricity outages, lightning, power  
surges, or shortages of materials or labour.  
6. The customer is responsible for the security of their computer and network at all times. Security  
features may be disabled within the factory default settings. NetComm recommends that you enable  
these features to enhance your security.  
The warranty is automatically voided if:  
1. You, or someone else, use the product, or attempts to use it, other than as specified by NetComm;  
2. The fault or defect in your product is the result of a voltage surge subjected to the product either  
by the way of power supply or communication line, whether caused by thunderstorm activity or any  
other cause(s);  
3. The fault is the result of accidental damage or damage in transit, including but not limited to liquid  
spillage;  
4. Your product has been used for any purposes other than that for which it is sold, or in any way other  
than in strict accordance with the user manual supplied;  
5. Your product has been repaired or modified or attempted to be repaired or modified, other than by a  
qualified person at a service centre authorised by NetComm; and,  
6. The serial number has been defaced or altered in any way or if the serial number plate has been  
removed.  
34  
NP643IEEE 802.11g PC Card Adapter  
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YML786 Rev1  
 
Limitations of Warranty  
The Trade Practices Act 1974 and corresponding State and Territory Fair Trading Acts or legalisation  
of another Government (“the relevant acts”) in certain circumstances imply mandatory conditions and  
warranties which cannot be excluded. This warranty is in addition to and not in replacement for such  
conditions and warranties.  
To the extent permitted by the Relevant Acts, in relation to your product and any other materials provided  
with the product (“the Goods”) the liability of NetComm under the Relevant Acts is limited at the option of  
NetComm to:  
Replacement of the Goods; or  
Repair of the Goods; or  
Payment of the cost of replacing the Goods; or  
Payment of the cost of having the Goods repaired.  
NP643 IEEE 802.11g PC Card Adapter  
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35  
YML786 Rev1  
 
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