LW6102A
© Copyright 2004. Black Box Corporation. All rights reserved.
1000 Park Drive
•
Lawrence, PA 15055-1018
•
724-746-5500
•
Fax 724-746-0746
JUNE 2004
LW6102A
Pure Networking 802.11b Wireless
Mini USB Adapter
CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
FCC AND IC RFI STATEMENTS
FEDERAL COMMUNICATIONS COMMISSION
and INDUSTRY CANADA
RADIO FREQUENCY INTERFERENCE STATEMENTS
Class B Digital Device. This equipment has been tested and found to comply with
the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular 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. If this equipment does cause harmful interference to radio or
telephone 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 an experienced radio/TV technician for help.
CAUTION
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
To meet FCC requirements, shielded cables and power cords are required to
connect this device to a personal computer or other Class B certified device.
This digital apparatus does not exceed the Class B limits for radio noise emission from digital
apparatus set out in the Radio Interference Regulation of Industry Canada.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
EUROPEAN UNION DECLARATION OF CONFORMITY
This equipment complies with the requirements of the European EMC Directive
89/336/EEC.
2
NOM STATEMENT
NORMAS OFICIALES MEXICANAS (NOM)
ELECTRICAL SAFETY STATEMENT
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de
que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para
referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de
operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca
de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que
sean recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea
recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá
a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser
referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no
interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,
alfombra o superficie similar puede bloquea la ventilación, no se debe colocar
en libreros o gabinetes que impidan el flujo de aire por los orificios de
ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor
como radiadores, registros de calor, estufas u otros aparatos (incluyendo
amplificadores) que producen calor.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del
tipo descrito en el instructivo de operación, o como se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización
del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no
sean pisados ni pellizcados por objetos colocados sobre o contra ellos,
poniendo particular atención a los contactos y receptáculos donde salen del
aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las
recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas
de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea
usado por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean
derramados sobre la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su
desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.
4
TRADEMARKS USED IN THIS MANUAL
TRADEMARKS USED IN THIS MANUAL
Windows is either a registered trademark or a trademark of Microsoft Corporation
in the United States and/or other countries.
NetWare is a registered trademark of Novell, Inc.
Any other trademarks mentioned in this manual are acknowledged to be the property of the
trademark owners.
5
PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
Contents
Chapter
Page
1.
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Windows 98 SE/Me and Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Windows XP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 Using the Windows XP Utility . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.2 Using the Card’s Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.
Configuration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Wireless Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 General Connection Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3 WEP Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4 Advanced Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Calling Black Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3 Shipping and Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6
CHAPTER 1: Specifications
1. Specifications
Antenna: Internal antenna
Distance (Maximum): 328 ft. (100 m)
Frequency Band: 2.4000–2.4835 GHz
Modulation: OFDM with BPSK, QPSK, 16AQM, 64QAM (11g), BPSK, QPSK, CCK
(11b)
Operating System: Compatible with all major operating systems; Drivers included
for Windows® 98 SE/Me/XP, Windows 2000, and Linux®
Security: 64-/128-/152-bit WEP Data Encryption, WPA (TKIP with IEE 802.1x),
and AES
Speed: 11, 5.5, 2, 1 Mbps with auto fallback
Standards: IEEE 802.11b
Bus Type: USB Type A
Radio Technology: Direct Sequence Spread Spectrum (DSSS)
Connectors: (1) USB Type A
Indicators: (1) Link/Activity LED
Temperature: 32 to 131°F (0 to 55°C)
Humidity: Up to 95%, noncondensing
Power: From the interface
Transmit Power: 16 dBm
Size: 0.3"H x 1"W x 3.5"D (0.8 x 2.5 x 8.9 cm)
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
2. Introduction
2.1 Overview
Connect your PC to another network device without cable. The Pure Networking
802.11b Wireless Mini USB Adapter installs in your notebook, laptop, or desktop
PC and uses wireless technology to transfer data. It also supports Windows OS
plug-and-play installation and USB hot swap, allowing you to plug it in or remove it
without rebooting your computer. The adapter complies with the IEEE 802.11b
2.4 GHz (DSSS) standard, which supports wireless network connections up to
11 Mbps. High throughput maximizes multimedia data bandwidth and 64-/128-bit
WEP data encryption for a high level of security. It also supports peer-to-peer
communication among wireless users, with no access point required. Automatic
fallback increases data security and reliability. The card works with Windows 98
SE/Me/XP and Windows 2000.
2.2 What’s Included
Before you begin the installation, check the contents of your package. The package
should include the following items:
• (1) Pure Networking 802.11b Wireless Mini USB Adapter
• (1) 3.2 ft. (1-m) USB extension cable
• (1) CD-ROM containing this users’ manual in PDF format and software drivers
If anything is missing or damaged, please contact Black Box at 724-746-5500.
8
CHAPTER 3: Installation
3. Installation
Before you proceed with the installation, read the following notes.
NOTES
Do not install the adapter in your PC’s USB port before installing the
software program from the CD.
The installation described in Section 3.1 was operated under Windows
2000. (Procedures are the same for Windows 98 SE/Me.)
If you have installed the Pure Networking 802.11b Wireless Mini USB
Adapter driver and utility before, please uninstall the old version first.
3.1 Windows 98 SE/Me and Windows 2000
1. Insert the CD into the CD-ROM drive and type Utility\setup.exe. The
InstallShield Wizard screen will appear (see Figure 3-1); click Next to
continue.
Figure 3-1. InstallShield Wizard screen.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
2. The Choose Destination Location screen (see Figure 3-2) will show you the
default destination chosen by the program. If you want to install the utility in
another location, click on the Browse button and select an alternate
destination. When you are ready to continue, click on the Next button.
Figure 3-2. Choose Destination Location screen.
10
CHAPTER 3: Installation
3. The program will finish the installation automatically (see Figure 3-3).
Figure 3-3. Setup Status screen.
4. When the installation is done, insert the Pure Networking 802.11b Wireless
Mini USB Adapter into the computer’s USB port.
5. The system will automatically detect the adapter as a new device and display
the Add New Hardware Wizard dialog box. Follow the installation wizard to
complete the device setup step by step.
6. After completing the installation, run the ZDConfig program (click on the
Start button in the system tray [the leftmost icon in Figure 3-4] and select
ZyDAS Wireless LAN—USB) to start using the Pure Networking 802.11b
Wireless Mini USB Adapter.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
3.2 Windows XP
The Windows XP installation process is similar to the process described in Section
3.1. Please follow those instructions. Once it’s installed, return to this section and
either use the Windows XP utility (see Section 3.2.1) or the card’s utility (see
Section 3.2.2). We strongly recommend using the card’s utility.
3.2.1 USING THE WINDOWS XP UTILITY
Click on the workstations icon (fourth from left) in the system tray (see Figure
3-4). The screen shown in Figure 3-5 appears. Click on Connect to start using the
Windows XP wireless utility.
Figure 3-4. System tray.
Figure 3-5. Connecting to the wireless network.
12
CHAPTER 3: Installation
3.2.2 USING THE CARD’S UTILITY
1. From the scroll-down menu in the Connect to Wireless Network screen
(Figure 3-5), select the network you want to connect to. Then click on the
Advanced button. The Wireless Network Connection 2 Properties screen
appears (see Figure 3-6).
Figure 3-6. Wireless network connection properties tab.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
2. Select the Wireless Networks tab (see Figure 3-6) in the Wireless Network
Connection Properties screen, then clear the Use Windows to configure my
wireless network settings check box by clicking on the √. If you want to enable
the Windows XP built-in utility, select the check box again, and the √ will
reappear. Click on the OK button.
3. Run the ZDConfig program (click on the Start button in the system tray [the
leftmost button in Figure 3-4]). The ZyDAS Wireless LAN Configuration Tool
screen appears (see Figure 3-7). Select ZyDAS Wireless LAN—USB from the
drop-down list.
Figure 3-7. ZyDAS Wireless LAN Configuration Tool screen.
NOTE
Disable the Windows XP utility as described in Section 3.2.2, step 2,
before using the adapter’s utility . If you don’t, you can only see the link
status when the adapter is using its own utility.
14
CHAPTER 4: Configuration Utility
4. Configuration Utility
The Configuration Utility is a powerful application that helps you configure the
Pure Networking 802.11b Wireless Mini USB Adapter and monitor the link status
during the communication process.
This utility can be used to change the following configuration parameters when the
device is active.
4.1 Wireless Connection
In the ZyDAS Wireless LAN Configuration Tool (see Figure 4-1), you can access
any of the wireless devices’ information. Check the link status while the Wireless
Mini USB Adapter is linking to one of the wireless devices.
Figure 4-1. Configuration Tool.
15
PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
Table 4-1. Wireless LAN configuration tool screen parameters.
Parameter
Description
Network Adapter
Displays the USB Adapter’s name.
Available Network
Displays the SSID and Signal Strength of wireless
devices nearby. To re-survey the available wireless
devices, click on the Refresh button.
There are two ways to automatically make the connection
between the USB Adapter and the wireless device on the
list.
1. Double-click on the wireless device in the list.
2. Click once on the device you intend to connect. The
Refresh button changes to the Connect this site
button. Click on this button.
16
Current Network
Information
Displays the information about the wireless network this
adapter is connecting to. The information includes
Channel, Type, SSID, TX Rate, and WEP settings. Refer
to Section 4.2 for a description of each item.
More Setting button
Press this button for more settings including
disable/enable WEP and Power Saving Mode. Please
refer to Sections 4.2 through 4.4.
Link Status
Displays the status of the wireless connection.
Signal Strength
This bar shows the signal strength level. The higher
percentage shown in the bar, the stronger the radio signal
that’s received by the adapter. This indicator helps to find
the proper position of the wireless device for quality
network operation.
CHAPTER 4: Configuration Utility
Table 4-1 (continued). Wireless LAN configuration tool screen parameters.
Parameter
Description
Link Quality
This bar indicates the quality of the link. The higher the
percentage, the better the quality.
TX Frame
The number of data frames that are transmitted by the
adapter successfully.
RX Frame
The number of data frames that are received by the
adapter successfully.
4.2 General Connection Setting
In the More Setting screen (see Figure 4-2), you can designate the wireless network
that the adapter intends to connect to, enable or disable the WEP data encryption,
save or load the setting values into or from a file, etc.
Figure 4-2. More Setting screen.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
Table 4-2. More Setting screen parameters.
Parameter
Description
General Connection Setting
Channel
Select the number of the radio channel used for the
networking. The channel setting of the wireless stations
within a network should be the same.
Tx Rate
Select the basic transmit rate: 11, 5.5, 2, or 1 Mbps. If you
select Auto, the adapter will automatically adjust to the
highest possible rate according to the interference or
obstacles.
SSID
The SSID (up to 32 printable ASCII characters) is the
unique name identified in a WLAN. The ID prevents the
unintentional merging of two co-located WLANs.
You may specify a SSID for the adapter; then, only the
device with the same SSID can interconnect to the
adapter.
Any
If the Any box has a check mark in it, the adapter will
survey and connect to one of the available wireless
stations without checking the consistency of the channel
and SSID with the wireless station.
Network Type
Infrastructure: This mode requires the presence of an
access point (AP) or router to create a wireless network.
All the communication is processed through the AP or
router.
Ad-Hoc: This mode enables wireless network adapters to
interconnect without an AP or router. Select this mode if
there is no AP or router in the network.
18
CHAPTER 4: Configuration Utility
Table 4-2 (continued). More Setting screen parameters.
Parameter
Description
Change button
Pressing the Change button enables you to set the
General Connection Setting’s parameters. Meanwhile, the
button will change to the Apply button for you to confirm
your settings.
Encryption Setting
In the Encryption Setting section of the screen shown in
Figure 4-2, set up the WEP key for the data encryption
within the network. To do this, first check (√) the Enable
WEP box and click on the WEP More button, then refer to
Section 4.3 for details.
Profile
Profile Name
Type the profile name in the Profile Name box, or use the
drop-down menu to select the Profile Name.
Load profile setting
Automatically loads the setting values corresponding to
the file named in the Profile Name. The new settings will
be activated immediately.
Write current
setting to profile
Saves the setting values for the selected profile to the file
named in the Profile Name field.
Load factory
default setting
To restore the settings to the factory default, press
this button. The default values are as follows:
Channel: 6
Tx Rate: Auto
SSID: Any
Network Type: Infrastructure
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
Table 4-2 (continued). More Setting screen parameters.
Parameter
Description
Other
Advanced Setting
button
Press this button for more advanced settings.
For details, refer to Section 4.3.
Information button
To view the adapter’s driver name, firmware version, and
MAC address, press the button.
4.3 WEP Encryption
WEP is an authentication algorithm that protects authorized wireless LAN users
against eavesdropping. The authentication mode and WEP key settings must be
the same on the wireless stations within the network. This adapter supports the 64/128-bit WEP encryption function. With this function, your data will be transmitted
over the wireless network securely. To access the WEP key setting screen (Figure 43), check (√) the Enable WEP box in the More Setting screen (Figure 4-2), then
click on the WEP More button.
Figure 4-3. WEP setting screen.
20
CHAPTER 4: Configuration Utility
Table 4-3. WEP parameters.
Parameter
Description
Authentication Mode
This setting has to be consistent with the wireless stations
to which the adapter intends to connect.
• Open System—No authentication is needed among
the wireless stations.
• Shared Key—Only wireless stations using a shared
key (WEP Key identified) are allowed to connect to
each other. Set up the same key as the wireless
stations that the adapter intends to connect to.
• Auto—Autoswitch the wireless stations to the desired
access point.
Key Length
You may select 64 bit or 128 bit to encrypt transmitted
data. A larger key length will provide a higher level of
security, but the throughput will be lower.
Default Key ID
Select one of the keys (1–4) as the encryption key.
Key Values #1–#4
The keys are used to encrypt data transmitted in the
wireless network. Fill the text box, keeping in mind the
points listed below.
• 64-bit—Type in 10-digit Hex values (in the A–F, a–f,
and 0–9 range) as the encryption keys. For example,
“0123456aef”.
• 128-bit—Type in 26-digit Hex values (in the A–F, a–f,
and 0–9 range) as the encryption keys. For example,
“01234567890123456789abcdef”.
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PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
4.4 Advanced Setting
The Advanced Setting option (see Figure 4-4) allows you to enable/disable powersaving mode, and to set the adapter’s fragmentation and RTS/CTS threshold. To
access the Advanced Setting screen (Figure 4-4), click on the Advanced Setting
button in the More Setting screen (Figure 4-2).
Figure 4-4. Advanced Setting screen.
22
CHAPTER 4: Configuration Utility
Table 4-4. Advanced setting parameters.
Parameter
Description
Enable auto power saving
A check in this box enables power-saving mode.
You may control the power consumption of the
adapter by adjusting the save power level from 1 to
4. The higher the power save level selected, the
lower the power used. This may slow down the
transmission rate of the adapter.
Fragmentation Threshold
The value defines the maximum size of packets;
any packet size larger than the value will be
fragmented. If you have decreased this value and
experience high packet error rates, you can
increase it again, but it will likely decrease overall
network performance. Select a setting within a
range of 256 to 2305 bytes. We recommend
changing the size in small increments.
RTS/CTS Threshold
This is the minimum packet size required for an
RTS/CTS (Request To Send/Clear to Send). For
packets smaller than this threshold, an RTS/CTS is
not sent and the packet is transmitted directly to
the WLAN. Select a setting within a range of 0 to
2305 bytes. We recommend changing the size in
small increments.
23
PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
5. Troubleshooting
5.1 Frequently Asked Questions
1. What is the IEEE 802.11b standard?
The IEEE 802.11b Wireless LAN standard subcommittee formulates the
standard for the industry. The objective is to enable wireless LAN hardware
from different manufacturers to communicate.
2. What does the IEEE 802.11 feature support?
The product supports the following IEEE 802.11 functions:
• CSMA/CA plus Acknowledge Protocol
• Multi-Channel Roaming
• Automatic Rate Selection
• RTS/CTS Feature
• Fragmentation
• Power Management
3. What is ad-hoc?
An ad-hoc integrated wireless LAN is a group of computers linked to each
other without using an access point; each has a Pure Networking 802.11b
Wireless Mini USB Adapter connected as an independent wireless LAN.
You’d typically use an ad-hoc wireless LAN for a branch or SOHO operation.
4. What is infrastructure?
When you connect a wireless LAN and a combination (wireless and wired)
LAN together, it’s called an infrastructure configuration. Infrastructure is
applicable on an enterprise scale for wireless access to a central database, or
for a wireless application for mobile workers.
5. What is BSS ID?
A specific ad-hoc LAN is called a Basic Service Set (BSS). Computers in a BSS
must be configured with the same BSS ID.
24
CHAPTER 5: Troubleshooting
6. What is WEP?
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40-bit
shared key algorithm, as described in the IEEE 802 .11 standard.
7. Can wireless products support printer sharing?
Wireless products perform the same function as LAN products. Therefore,
wireless products can work with NetWare®, Windows 2000, or other LAN
operating systems to support printer or file sharing.
8. Would the information be intercepted while transmitting on air?
WLAN features two-fold protection in security. On the hardware side, as with
Direct Sequence Spread Spectrum technology, it has the inherent security
scrambling feature. On the software side, WLAN series offer the encryption
function (WEP) to enhance security and access control. Users can set it up
depending upon their needs.
9. What is DSSS? What is FHSS? And what are their differences?
Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier that
changes frequency in a pattern that is known to both transmitter and receiver.
Properly synchronized, the net effect is to maintain a single logical channel.
To an unintended receiver, FHSS appears to be short-duration impulse noise.
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 is, 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.
25
PURE NETWORKING 802.11B WIRELESS MINI USB ADAPTER
10. What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique
developed by the military for use in reliable, secure, mission-critical
communication systems. It is designed to trade off bandwidth efficiency for
reliability, integrity, and security. In other words, more bandwidth is
consumed than in the case of narrowband transmission, but the trade off
produces a signal that is, in effect, louder and thus easier to detect, provided
that the receiver knows the parameters of the spread-spectrum signal being
broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum
signal looks like background noise. There are two main alternatives, Direct
Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread
Spectrum (FHSS).
5.2 Calling Black Box
If you determine that your Pure Networking 802.11b Wireless Mini USB Adapter is
malfunctioning, do not attempt to alter or repair the unit. It contains no userserviceable parts. Contact Black Box at 724-746-5500.
Before you do, make a record of the history of the problem. We will be able to
provide more efficient and accurate assistance if you have a complete description,
including:
• the nature and duration of the problem.
• when the problem occurs.
• the components involved in the problem.
• any particular application that, when used, appears to create the problem or
make it worse.
5.3 Shipping and Packaging
If you need to transport or ship your Pure Networking 802.11b Wireless Mini USB
Adapter:
• Package it carefully. We recommend that you use the original container.
• If you are shipping the Pure Networking 802.11b Wireless Mini USB Adapter
for repair, make sure you include everything that came in the original
package. Before you ship, contact Black Box to get a Return Authorization
(RA) number.
26
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