LongView
Installer/User Guide
®
Wireless
INSTRUCTIONS
This symbol is intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the literature
accompanying the appliance.
DANGEROUS VOLTAGE
This symbol is intended to alert the user to the presence of uninsulated
dangerous voltage within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
PROTECTIVE GROUNDING TERMINAL
This symbol indicates a terminal which must be connected to earth ground
prior to making any other connections to the equipment.
LongView® Wireless
Installer/User Guide
Avocent, the Avocent logo, The Power of Being There and
LongView are registered trademarks of Avocent Corporation
or its affliates. All other marks are the property of their respective owners.
© 2003 Avocent Corporation. All rights reserved.
USA Notification
Canadian Notification
Agency Approvals
Warning: Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. 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. Operation of
this equipment in a residential area is likely to cause harmful interference, in which
case the user will be required to correct the interference at his own expense.
This digital apparatus does not exceed the Class A limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communicat ions.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant
les limites applicables aux appareils numériques de la classe A prescrites
dans le Règlement sur le brouillage radioélectrique édicté par le Ministère des
Communications du Canada.
FCC class A, UL, cUL
Table of Contents
Chapter 1: Product Overview
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compatibility with Peripherals . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2: Installation
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing a LongView Wireless Extender . . . . . . . 10
Chapter 3: Operations
Powering the LongView Wireless Extender . . . . . . 15
Informational Messages . . . . . . . . . . . . . . . . . . . . . 15
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fine-Tuning the Image Settings . . . . . . . . . . . . . . . 16
Image Adjustment Using
the LongView Wireless OSD . . . . . . . . . . . . . . . . 17
Appendices
Appendix A: Technical Specifications . . . . . . . . . . 21
Appendix B: Technical Support . . . . . . . . . . . . . . . 22
Appendix C: Troubleshooting . . . . . . . . . . . . . . . . . 23
Appendix D: Understanding Wireless . . . . . . . . . . 26
1
Product Overview
Contents
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compatibility with Peripherals . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 1: Product Overview 3
Chapter 1: Product Overview
Features and Benefits
Avocent’s LongView® Wireless Extender connects Keyboard, Video, Mouse
(KVM) and audio peripherals wirelessly to your computer, from up to 100
feet away. LongView Wireless is a digital system that processes analog video,
inbound and outbound, utilizing a unique, proprietary compression engine.
At the heart of the compression engine is a multimedia DSP and an FPGA
that are coupled to an IEEE 802.11a radio board.
Its industry standard design makes LongView Wireless compatible with
virtually any PC, display technology and operating system. Installation is
essentially Plug and Play requiring no new drivers or software.
S1 S2 PWR
Figure 1.1: LongView Wireless Model
The LongView Wireless On-Screen Display (OSD)
The LongView Wireless OSD makes it simple to set up and adjust your video
parameters. Accessed from the receiver side, the OSD makes tuning your
video fast and convenient.
4 LongView Wireless Installer/User Guide
Server
Figure 1.2: Example LongView Wireless Configuration
Secure connectivity and 802.11a standards-based design
Advanced Encryption Standard (AES) provides secure connections through
a proprietary design based on the 802.11a standard.
Extended
Access User
LongView Wireless
Receiver
LongView Wireless
Transmitter
The LongView Wireless transmitter
The LongView Wireless transmitter connects directly to your computer
and serves as the radio interface device enabling the computer to transmit
audio and video data. It also acts as the receiver for keyboard and mouse
data sourced from extended devices. The LongView Wireless transmitter
contains five chassis-mounted connectors for local video, keyboard and
mouse peripherals, in addition to power and audio in from the computer.
It includes a 3.5 foot cable with video and PS/2 keyboard and mouse
connectors. Power is supplied to the transmitter from a universal input 12 V
DC switching power supply (included).
The LongView Wireless receiver
The LongView Wireless receiver connects directly to your user interface
devices (keyboard, video monitor and mouse) and serves as the radio
interface device for these components. It receives audio and video data from
the source computer and sends keyboard and mouse data from the user
interface devices to the source computer. The LongView Wireless receiver
has five chassis-mounted connectors for video, keyboard, mouse and audio
peripherals and power. Power is supplied to the transmitter from a universal
input 12 V DC switching power supply (included).
Chapter 1: Product Overview 5
Compatibility with Peripherals
The LongView Wireless is compatible with the following peripherals:
• Keyboard- The LongView Wireless transmitter and receiver support
virtually any standard PS/2 keyboard.
• Mouse- The LongView Wireless transmitter and receiver support 2button PS/2 mice. Mice that have more than two buttons work with the
reduced functionality of a 2-button mouse.
• Video- The LongView Wireless Extender supports VGA, SVGA and XGA
resolutions up to 60 Hz refresh rate. Both CRT and LCD monitors with
standard 15-pin high density connectors are supported.
• Audio- Speakers and headphones with 3.5 mm audio plugs are
supported on the receiver side of your LongView Wireless Extender,
provided the transmitter has been connected to the sound card of your
PC with the provided audio cable.
Safety Precautions
To avoid potential video and/or keyboard problems when using Avocent products:
• If the building has 3-phase AC power, ensure that the computer and
monitor are on the same phase. For best results, they should be on the
same circuit.
• Use only Avocent-supplied cable to connect computers and KVM
switches. Avocent warranties do not apply to damage resulting from
user-supplied cable.
To avoid potentially fatal shock hazard and possible damage to equipment,
please observe the following precautions:
• Do not use a 2-wire extension cord in any Avocent product confi guration.
• Test AC outlets at the computer and monitor for proper polarity
and grounding.
• Use only with grounded outlets at both the computer and monitor. When
using a backup Uniterruptible Power Supply (UPS), power the computer
and the LongView Wireless transmitter unit off the supply.
NOTE: The AC inlet is the main disconnect.
6 LongView Wireless Installer/User Guide
2
Installation
Contents
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing a LongView Wireless Extender . . . . . . . 10
Chapter 2: Installation 9
Chapter 2: Installation
Getting Started
Before installing your LongView Wireless Extender, refer to the list below to
ensure that you have all the items that shipped with the LongView Wireless.
Supplied with the LongView Wireless Extender
Your LongView Wireless package contains the following items:
• LongView Wireless transmitter
• LongView Wireless receiver
• Two local country power supplies
• Audio cable
• LongView Wireless Installer/User Guide
• LongView Wireless Quick Installation Guide
10 LongView Wireless Installer/User Guide
Installing a LongView Wireless Extender
Follow the step-by-step procedures listed in the To install a LongView
Wireless transmitter and To install a LongView Wireless receiver sections to
properly install your new KVM extension system.
WARNING: To reduce the risk of electric shock or damage to your equipment -
- Disconnect the power from the unit by unplugging the power supply from the electrical outlet.
To install a LongView Wireless transmitter:
1. Ensure that the video setting of your computer is 1024 x 768, 800 x 600
or 640 x 480 at 60 Hz refresh rate. Best performance will be achieved if
the color resolution is set to 24 bit color or higher.
2. Power down the computer th at wil l b e p art of your LongView
Wireless Extender.
3. Unplug the peripherals (keyboard, mou se, monitor and sp eakers with
buil t- in amplifi ers , i f applicable) from your computer.
Transmitter
Cables
Power
Supply
Peripheral Cables
Audio Cable
Figure 2.1: LongView Wireless Transmitter Installation Example
Chapter 2: Installation 11
4. Prepare locations for your LongView Wireless equipment, computer
and peripherals. Place the transmitter near your computer. Best
performance is achieved when the antennas are clearly visible and free
from obstructions.
5. Connect the LongView Wireless transmitter cables into the computer’s
PS/2 keyboard (purple connector), PS/2 mouse (green connector) and
monitor connections (blue connector).
6. Using the suppli ed audio ca ble, con nect one end to the LongVie w
Wireless transmitter’s audio input connection (lime green connect or)
and the other end t o the computer’s audio output connection (lime
green connector).
7. Connect your LongView Wireless transmitter to an AC power source with
one of the power supplies included with your LongVie w Wireless Extender.
NOTE: The transmitter must be powered up before the computer.
NOTE: Use only an Avocent-supplied power supply.
8. Power up your computer.
Connecting the LongView Wireless receiver
Virtually any industry-standard display device can be attached to the
LongView Wireless receiver, as long as it has a 15-pin D shell connector
for video input and can accept VGA (640 x 480), SVGA (800 x 600) and XGA
(1024 x 768) resolution video.
To install a LongView Wireless receiver:
1. Select a location for your LongView Wireless receiver. Find a convenient
position for locating the LongView Wireless receiver, such as a desktop
that is near your extended display. Best performance is achieved when the
antennas are clearly visible and free from obstructions.
2. Connect the extended display’s video input into the LongView Wireless
receiver’s video input (blue connector).
NOTE: The extended display must have a standard 15-pin D-shell RGB analog interface.
12 LongView Wireless Installer/User Guide
3. Connect the extended display’s PS/2 keyboard and mouse (if applicable)
into the LongView Wireless receiver’s keyboard connection (purple
connector) and mouse connection (green connector).
Power
Supply
Audio
Cable
Peripheral
Cables
Figure 2.2: LongView Wireless Receiver Installation Example
4. Connect your speakers into the LongView Wireless receiver’s audio
output connection (lime green connector).
5. Connect the LongView Wireless power supply into the LongView
Wireless receiver and into the AC power source.
NOTE: Use only an Avocent-supplied power supply.
6. Connect your monitor’s power supply to appropriate electrical outlets.
3
Operations
Contents
Powering the LongView Wireless Extender . . . . . . 15
Informational Messages . . . . . . . . . . . . . . . . . . . . . 15
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fine-Tuning the Image Settings . . . . . . . . . . . . . . . 16
Image Adjustment Using
the LongView Wireless OSD . . . . . . . . . . . . . . . 17
Chapter 3: Operations 15
Chapter 3: Operations
Powering the LongView Wireless Extender
The LongView Wireless units (transmitter and receiver) have been fact or y
configured to operate as a companion pair. The initial radio link between
the two units is established by the receiver, although all other aspects of the
link are controlled by the transmitter. Once the radio link is established,
mouse, keyboard, video and audio data is free to flow between the two units.
To power up the LongView Wireless Extender:
1. Complete all of the installation steps. See Chapter 2.
2. Power up the LongView Wireless transmitter and wait for the middle
LED marked as S2 to illuminate.
3. Power up the monitor attached to the LongView Wireless receiver.
4. Power up the LongView Wireless receiver.
5. Power up your computer.
NOTE: Always power up the LongView Wireless transmitter and wait for the middle LED
marked S2 to illuminate before powering up your computer.
Informational Messages
When the LongView Wireless receiver is powered up, it will display a
message on the computer monitor to which it is attached:
Searching for CLT_000c4116bc7b
The 000c4116bc7b is replaced by the MAC id of the radio board in your
transmitter unit. This message indicates that your receiver unit is actively
searching for its companion transmitter. When it finds the companion
transmitter, it will display a second message beneath the first:
Connecting to CLT_000c4116bc7b
The 000c4116bc7b is replaced by the MAC id of the radio board in your
transmitter unit. This message indicates that your receiver unit is
establishing the radio link with your transmitter unit. When this link is
established, both messages will be removed and the monitor will display
video information from your computer.
16 LongView Wireless Installer/User Guide
LEDs
Both the LongV iew Wireless transmitter and receiver contain three LEDs
visible from the front of each unit. The LEDs are labeled on the unit.
Figure 3.1: Transmitter LEDs
LED Conditions
S1 S2 PWR Condition
OFF OFF ON No Activity, Power is On
OFF OFF OFF No Activity, Power is Off
OFF ON ON Establish Link
ON ON ON Connected
S1 S2 PWR
Fine-Tuning the Image Settings
Once the radio link has been established, and the monitor attached to the
receiver is displaying computer generated video, some fine-tuning of the
video settings may be desired. This fine-tuning should only be necessary
the first time that a LongView Wireless transmitter is used with a particular
computer; settings, once adjusted, are saved in the transmitter unit.
A mouse or keyboard driven menu, called the On-Screen Display (OSD),
enables you to perform these adjustments. The LongView OSD allows you
to use an Auto Setup feature to adjust the image settings, or enables you to
manually adjust any of the individual image settings. New settings may be
temporarily or permanently saved.
M
ain menu options
The LongView Wireless Main menu has two options- Auto Setup and
Link Status. The Auto Setup checks the video parameters for your source
computer and then automatically optimizes the video quality portrayed on
your monitors. The Link Status indicates the signal strength of the wireless
connection between your LongView Wireless transmitter and receiver.
Chapter 3: Operations 17
Advanced menu options
The LongView Wireless OSD Advanced menu allows you to fine-tune the
video settings that were established with the Auto Setup function. You may
tune the horizontal and vertical position of the video monitor window, as
well as adjust the brightness and contrast of the video image. You may also
adjust the video clock phase in the LongView Wireless transmitter relative
to the video clock at your source computer to assure the cleanest, sharpest
video image.
Image Adj ustment Using th e Long View Wireless OSD
When configuring the OSD, you may use the Auto Setup function to
automatically optimize the video of your LongView Wireless Extender, or
you may choose to optimize it manually.
To optimize video automatically:
1. Activate the OSD Main menu on the receiver unit by pressing and
holding the left Shift key followed by the right Shift key and then
releasing both.
2. Optimize the video setup of your W ireless Extender by selecting Auto Setup
- Run. This will automatically optimize your video setup parameters.
3. From the OSD Main menu, select Finish at the bottom to save your OSD,
keyboard and Auto Setup parameters.
-orSelect Cancel to exit without saving changes.
To optimize video manually:
If your monitor image requires further adjustment after running the Auto
Setup, you may use the Advanced Setup options from the LongView Wireless
OSD menu.
1. Activate the OSD Main menu on the receiver unit by pressing and
holding the left Shift key followed by the right Shift key and then
releasing both.
2. Select the Advanced tab from the OSD Main menu.
18 LongView Wireless Installer/User Guide
3. On the OSD Advanced menu, use the fi ne-tuning options to make
further adjustments to your video image, as needed.
Press the Left or Right arrows keys to make adjustments for:
• Horizontal Position
• Vertical Position
• Brightness
• Contrast
• Clock Phase
4. Select Finish at the bottom of the Main OSD menu to save the parameters.
-orIf you wish to exit without saving changes, select the Canc el button.
Appendices
Contents
Appendix A: Technical Specifications . . . . . . . . . . 21
Appendix B: Technical Support . . . . . . . . . . . . . . . 22
Appendix C: Troubleshooting . . . . . . . . . . . . . . . . . 23
Appendix D: Understanding Wireless . . . . . . . . . . 26
Appendices 21
Appendices
Appendix A: Technical Specifications
LongView Wireless Product Specifi cations
Mechanical
Height 1.75" (4.45 cm)
Width 6.25" (15.88 cm)
Depth 5.25" (13.34 cm)
Weight 1 lb (0.45 kg)
Environmental/Power
Operating Temperature 0°C to 40°C
Storage Temperature -20°C to 50°C
Power Supply 12Vdc @ 1A from supplied 100 to 240 VAC 50/60
Multimedia
Video Link Performance 640 x 480, 800 x 600, 1024 x 768
Video Link Compatibility VGA, SVGA, XGA
Video Interface VGA compatible with analog RGB
Audio Support Analog audio
Supported Hardware
Computer Most standard computers with the
Video Resolution VGA, SVGA, XGA
Peripherals PS/2 keyboard, PS/2 mouse, speakers
Radio
Radio Protocol IEEE 802.11a
Radio Frequency 5150-5250; 5250-5350; 5725-5825 MHz
Radio Modulation OFDM (Orthogonal Frequency Division Multiplexing)
Nominal Output Power 17dBm
Range XGA video resolution to 100 feet
Security AES encryption with 802.1x authentication
Regulatory Compliance Standards
FCC Class A, UL, cUL
Antenna extends 4.75” (12.07 cm ) above lower
surface of housing
Hz switching power supply
(15-Pin D-shell), non-interlaced
60 Hz refresh rate
exception of Macintosh
22 LongView Wireless Installer/User Guide
Appendix B: Technical Support
Our Technical Support staff is ready to assist you with any installation or
operating issues you encounter with your Avocent product. If an issue
should develop, follow the steps below for the fastest possible service:
1. Check the Troubleshooting section of this manual to see if the issue can
be resolved by following the procedures outlined. See Appendix C.
2. Check our web site at www.avocent.com/support to search the
knowledge base or use the on-line service request.
3. Call Avocent Technical Support for assistance at (888) 793-8763. Visit
the Avocent web site at http://www.avocent.com/support and select
Support Phone Numbers for current phone support hours.
Appendices 23
Appendix C: Troubleshooting
No power status ligh t on transmitter or receiver
Verify that the green LED on the separate Avocent-supplied power supply is
No video on monitor attached to transmitter
Verify that the monitor has power and is switched on.
Ensure that the video cable from the LongView Wireless transmitter is securely
Ensure that the video cable from the monitor is securely plugged in to the correct
Verify that the computer is switched on.
As a last check, plug the video cable from the monitor directly into the computer
No mouse and/or keyboard operation from peripherals attached t o transmitter
Verify that the mouse and keyboard are connected to the correct PS/2 ports on
If the LongView Wireless tr ansmit te r w as powered u p a fter the computer, turn off
Retest the mouse and keyboard by connecting them directly to the computer
No video on monitor attached to receiver
Verify that the monitor attached to the LongView Wireless receiver has power and
Ensure that the video cable from the monitor is securely plugged in to the correct
Ensure that the video cable from the LongView Wireless transmitter is securely
Verify that the computer is switched on.
Cycle power to the LongView Wireless receiver. An informational message
illuminated, indicating that the power supply is plugged in correctly.
Ensure that
securely plugged into the LongView Wireless transmitter or LongView
Wireless receiver unit.
plugged in to the correct connector on the computer.
connector on the LongView Wireless transmitter.
to verify that the monitor is working and that the computer is generating active
video. If this is functioning, check that the display settings for your computer are
set no higher than a resolution of 1024 x 768 at 60 Hz refresh rate. If the monitor
does not function correctly, replace it.
the computer. Match the connector color codes (green is mouse and purple
is keyboard).
the computer and transmitter. Power up t h e LongView Wireless transmitter unit,
wait for the mid dle LED to illuminate, th en power up the computer.
and rebooting the computer. If one does not function correctly, replace the
non-functioning peripheral.
is switched on.
connector on the LongView Wireless receiver.
plugged in to the correct connector on the computer.
should appear on the monitor for a brief moment. If the message does not
appear, check the monitor by plugging the video cable from the monitor directly
into the computer to verify that the monitor is working and that the computer is
generating active video. If this is functioning, check that the display settings for
your computer are set no higher than a resolution of 1024 x 768 at 60 Hz refresh
rate. If the monitor does not function correctly, replace it.
the power cable from the Avocent-supplied power supply is
24 LongView Wireless Installer/User Guide
Verify that all three LEDs on both the LongView Wireless transmitter and the
As a last check, plug the video cable from the monitor directly into the computer
No mouse and/or keyboard operation from peripherals attached t o receiver
Ensure that the mouse and keyboard operation cables are connected to the
Verify that all three LEDs on both the LongView Wireless transmitter and the
Retest the mouse and keyboard by connecting them directly to the computer
No audio from speakers attached to receiver
Ensure that the audio cable is securely plugged into the line in port of the
Ensure that the audio cable is securely plugged into the line out port of the
Ensure that the speaker cable is securely plugged into the line out port of the
Verify that all three LEDs on both the LongView Wireless transmitter and the
Retest the speakers by connecting them directly to the computer. If they do not
Poor video quality on monitor attached to receiver
Run Auto Setup from the OSD. Remember to click Finish to save new settings.
Ensure that the video cable from the monitor is securely plugged in to the correct
LongView Wireless receiver are illuminated a short period of time after power up
(30 seconds or less). If all three LEDs are not illuminated, move the LongView
Wireless receiver closer to the LongView Wireless transmitter unit until all LEDs
are illuminated.
to verify that the monitor is working and that the computer is generating active
video. If this is functioning, check that the display settings for your computer are
set no higher than a resolution of 1024 x 768 at 60 Hz refresh rate. If the monitor
does not function correctly, replace it.
correct PS/2 ports on the LongView Wireless receiver. Match the connector color
codes (green is mouse and purple is keyboard).
Ensure that t
transmitter are connected to the correct PS/2 ports on the computer. Match the
connector color codes
LongView Wireless receiver are illuminated a short period of time after power up
(30 seconds or less). If all three LEDs are not illuminated, move the LongView
Wireless receiver closer to the LongView Wireless transmitter unit until all LEDs
are illuminated.
and rebooting the computer. If one does not function correctly, replace the
non-func tioning peripheral.
LongView Wireless transmitter unit.
computer (should be color coded green).
LongView Wireless receiver unit.
LongView Wireless receiver are illuminated a short period of time after the power
up (30 seconds or less). If all three LEDs are not illuminated, move the LongView
Wireless receiver closer to the LongView Wireless transmitter unit until all LEDs
are illuminated.
function correctly, replace them.
connector on the LongView Wireless receiver.
Ensure tha
plugged in to the correct connector on the computer.
he mouse and keyboard cables from the LongView Wireless
(green is mouse and purple is keyboard).
t the video cable from the LongView Wireless transmitter is securely
Appendices 25
Slow respon se from peripherals attached to LongView Wireless receiver
Run Auto Setup from the OSD. Remember to click Finish to save new settings.
The distance between the two LongView Wireless units may be too great,
reducing the quantity of data that can be sent through the radio link. Move the
LongView Wireless receiver closer to the LongView Wireless transmitter.
26 LongView Wireless Installer/User Guide
Appendix D: Understanding Wireless
Wireless technology is being used in many innovative ways to help people
work and communic ate more efficiently. Increased mobility and the absence
of cabling and other fixed infrastruct ure have proven to be beneficial for
many users.
People use wireless technology for many different purposes:
• Mobility – productivit y increases when people have access to data i n
any location wit hin the operating range of thei r W irele ss Extender.
Management decisions ba s ed on real-time i nform ation can
signifi cantly improve worker effi ciency.
• Low Implementation Costs – Wireless Extenders are easy to set up,
manage, change and relocate. Environments that change frequently
benefi t from the ease of implementing wireless. Wireless Extenders
operate in locations where installation of wiring may be impractical.
• Installation and Network Expansion – installing a Wireless Extender
can be fast and easy and can eliminate the need to pull cable through
walls and ceilings. Wireless technology allows the network to go where
wires cannot go – even outside the home or offi ce.
Standards-based technology
The LongView Wireless transmitter and receiver util ize a proprietary
design ba s ed on the 802.11a standa rd. The IEEE 802 .11a st anda rd is an
exten sion of the 80 2.11b standard. It increases the data rate up t o 54 Mbp s
within the 5 GHz band, uti liz ing OFDM technology.
This technology works by transmitting high-speed digital data over a radio
wave utilizing OFDM technology. OFDM works by splitting the radio signal
into multiple smaller sub-signals that are then transmitted simultaneously
at different frequencies to the receiver. OFDM reduces the amount of
crosstalk (interference) in signal transmissions.
Installation considerations
The LongView Wireless Extender allows you to access your computer using
a wireless connection from virtually anywhere within its operating range.
Keep in mind, however, that the number, thickness and location of walls,
ceilings and other objects that the wireless signals must pass through may
limit the range. Typical ranges vary depending on the types of materials and
background RF (radio frequency) noise in your home or business.
Appendices 27
To maximize your wireless range:
1. Keep the number of walls and ceilings between the transmitter and
receiver to a minimum – each wall or ceiling can reduce your wireless
product’s range.
2. Be aware of the direct line between your transmitter and receiver. A
wall that is 1.5 feet thick (.5 meters), at a 45° angle appears to be almost
3 feet (1 meter) thick. At a 2° angle, it looks over 42 feet (14 meters) thick!
Position your devices so that the signal will travel straight through a
wall or ceiling for better reception.
3. Building mat erials can impede the wireless signal – a solid metal door or
alumin um studs may have a negative effect on range. Try to position your
wirel ess de vices and computers with wir el ess adaptors so that the signal
passes through drywall or open doorways and not other materials.
4. Keep your LongView Wireless transmitter and receiver away (at least
3 to 6 feet or 1 to 2 meters) from electrical devices or appliances that
generate extreme RF noise.
28 LongView Wireless Installer/User Guide
LIMITED WARRANTY
Avocent Corporation warrants to the original retail purchaser that this product is and will be free from defects in
materials and workmanship for a period of 24 months from the date of purchase.
Additionally, all Avocent produc ts c arry an uncondit ional thirt y-day satisfact ion guarantee. If, for any reason,
you are dissatisfi ed with the performance of this produc t, you may return it t o the point of purchase for a
refund of the purchase price (excluding shipping charges). This guarantee does not apply t o special order
products, and may not be available through all resellers. During the warranty period, purchaser must promptly
call Avocent for a RETUR N MATERIALS AUTHORIZATION (RMA) number. Make sure that the RMA number
appears on the packing slip, proof of purchase, AND ON THE OUTS IDE OF EACH SHIPPING CARTON.
Unauthorized returns or collect shipments will be refused.
Ship prepaid to: Avocent Corporation
4991 Corporate Drive
Huntsville, AL 35805 U.S.A.
Telephone: (256) 430-4000
The above limited warranty is voided by occurrence of any of the following events, upon which the product is
provided as is, with all faults, and with all disclaimers of warranty identifi ed below:
1. If non-Avocent approved cabling is attached to the unit. Poorly constructed and miswired cabling can
diminish video quality and damage equipment. Avocent manufactured cabling is built to high quality
standards utilizing overall braided shield to comply with FCC emission standards, and each cable is
individually tested under load.
2. If defect or malfunction was caused by abuse, mishandling, unauthorized repair, or use other
than intended.
3. If unauthorized modifi cations were made to product.
4. If unreported damages occurred in any shipment of the product.
5. If damages were due to or caused by equipment or software not provided by Avocent.
6. If the unit is used with non-grounded or incorrectly polarized AC power.
7. If the produc t is used in contradiction to any instruction provided by any User Guide or Instruction
Sheet provided to you or with the product.
8. If the product is damaged due to power surges, water exposure or act of God including lightning.
EXCEPT AS SP ECIF ICALLY PROVIDE D ABOVE AND TO THE MAXIM UM EXTENT ALLOWED BY LAW,
AVOCENT CORPORATION DISCLAIMS ALL WARRANTIES AND CONDITIONS WHETHER EXPRESS,
IMPLIED, OR STATUTORY AS TO ANY MATTER WHATSOEVER INCLUDING, WITHOUT LIMITATION,
TITLE, NON-INFRINGEMENT, CONDITION, MERCHANTABI LITY OR FITNES S FOR ANY PARTICULAR
OR INTENDED PURPOSE.
EXCEPT AS EXPRESSLY PROVIDED ABOVE AND TO THE MAXIMUM EXTENT ALLOWED BY LAW,
AVOCENT CORPORATION SHALL N OT BE LIAB LE FO R ANY S P E C IAL, I N D I R ECT OR C ONSE QUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF BUSINESS, LOSS OF
INFORMATION, FIN ANCIA L LOSS, PERSONAL INJURY , L OSS OF PRIV A CY OR NEGLIGENCE) WHICH MA Y
BE CAUSED BY OR RELATED TO, DIRECTLY OR INDIRECTLY, THE USE OF A PRODUCT OR SERVICE,
THE INABILITY TO US E A PRODUCT OR S ERVIC E, INADEQUACY OF A P RODUCT OR SE RVICE FOR
ANY PU RPOS E OR U SE TH EREO F OR BY ANY DEFE CT OR DEF ICI ENCY TH ERE IN EVEN I F AVOCE NT
CORPORATION OR AN AUTHORIZED AVOCENT DEALER HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES OR LOSSES.
©2003 Avocent Corporation. All rights reserved.
For T echnical Support:
Email: support@avocent.com
www.avocent.com
Avocent Corporation
4991 Corporate Drive
Huntsville, Alabama 35805-6201 USA
Tel: +1 256 430 4000
Fax: +1 256 430 4031
Avocent Asia Pacifi c
Singapore Branch Offi ce
100 Tras Street, #15-01
Amara Corporate Tower
Singapore 079027
Tel: +656 227 3773
Fax: +656 223 9155
Avocent Canada
50 Mural Street, Unit 5
Richmond Hill, Ontario
L4B 1E4 Canada
Tel: +1 877 992 9239
Fax: +1 877 524 2985
590-383-001A
Avocent International Ltd.
Avocent House, Shannon Free Zone
Shannon, County Clare, Ireland
Tel: +353 61 715 292
Fax: +353 61 471 871
Avocent Germany
Gottlieb-Daimler- Straße 2-4
D-33803 Steinhagen
Germany
Tel: +49 5204 9134 0
Fax: +49 5204 9134 99
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