www.lorextechnology.com
LW2175R SERIES
English Version 1.0
WIRELESS DIGITAL SECURITY CAMERA
USER’S GUIDE
Thank you for purchasing this Lorex product.
This manual refers to the following products:
• LW2175R
• LW2175RPK2B
Please visit us on the web for the most current Manuals and Quick Start Guides. Additional
Language Manuals may also be available at:
www.lorextechnology.com
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RICK OF ELECTRIC SHOCK DO NOT
REMOVE COVER. NO USER SERVICABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the products ' enclosure that may be of
sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying
the appliance.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS UNIT TO RAIN OR MOISTURE.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE
OF THE PLUG TO THE WIDE SLOT AND FULLY INSERT.
iii
Important Safeguards
In addition to the careful attention devoted to quality standards in the manufacture process of your
video product, safety is a major factor in the design of every instrument. However, safety is your
responsibility too. This sheet lists important information that will help to assure your enjoyment
and proper use of the video product and accessory equipment. Please read them carefully before
operating and using your video product.
Installation
1. Read and Follow Instructions - All the safety and
operating instructions should be read before the
video product is operated. Follow all operating
instructions.
2. Retain Instructions - The safety and operating
instructions should be retained for future reference.
3. Heed Warnings - Comply with all warnings on the
video product and in the operating instructions.
4. Polarization - Do not defeat the safety purpose of the
polarized or grounding-type plug.
A polarized plug has two blades with
one wider than the other.
A grounding type plug has two blades
and a third grounding prong.
The wide blade or the third prong are
provided for your safety.
If the provided plug does not fit into
your outlet, consult an electrician for
replacement of the obsolete outlet.
5. Power Sources - This video product should be
operated only from the type of power source
indicated on the marking label. If you are not sure of
the type of power supply to your location, consult
your video dealer or local power company. For video
products intended to operate from battery power, or
other sources, refer to the operating instructions.
6. Overloading - Do not overload wall outlets of
extension cords as this can result in the risk of fire
or electric shock. Overloaded AC outlets, extension
cords, frayed power cords, damaged or cracked wire
insulation, and broken plugs are dangerous. They
may result in a shock or fire hazard. Periodically
examine the cord, and if its appearance indicates
damage or deteriorated insulation, have it replaced
by your service technician.
7. Power-Cord Protection - Power supply cords should
be routed so that they are not likely to be walked on
or pinched by items placed upon or against them,
paying particular attention to cords at plugs,
convenience receptacles, and the point where they
exit from the video product.
8. Ventilation - Slots and openings in the case are
provided for ventilation to ensure reliable operation
of the video product and to protect it from
overheating. These openings must not be blocked or
covered. The openings should never be blocked by
placing the video equipment on a bed, sofa, rug, or
other similar surface. This video product should
never be placed near or over a radiator or heat
register. This video product should not be placed in
a built-in installation such as a bookcase or rack
unless proper ventilation is provided or the video
product manufacturer’s instructions have been
followed.
9. Attachments - Do not use attachments unless
recommended by the video product manufacturer as
they may cause a hazard.
10. Camera Extension Cables – Check the rating of your
extension cable(s) to verify compliance with your
local authority regulations prior to installation.
11. Water and Moisture - Do not use this video product
near water. For example, near a bath tub, wash bowl,
kitchen sink or laundry tub, in a wet basement, near
a swimming pool and the like.
Caution: Maintain electrical safety. Power line
operated equipment or accessories connected to
this unit should bear the UL listing mark of CSA
certification mark on the accessory itself and should
not be modified so as to defeat the safety features.
This will help avoid any potential hazard from
electrical shock or fire. If in doubt, contact qualified
service personnel.
12. Accessories - Do not place this
video equipment on an unstable
cart, stand, tripod, or table. The
video equipment may fall, causing
serious damage to the video
product. Use this video product
only with a cart, stand, tripod,
bracket, or table recommended by the manufacturer
or sold with the video product. Any mounting of the
product should follow the manufacturer’s
instructions and use a mounting accessory
recommended by the manufacturer.
iv
Service
13. Servicing - Do not attempt to service this video
equipment yourself as opening or removing covers
may expose you to dangerous voltage or other
hazards. Refer all servicing to qualified service
personnel.
14. Conditions Requiring Service - Unplug this video
product from the wall outlet and refer servicing to
qualified service personnel under the following
conditions.
A. When the power supply cord or plug is
damaged.
B. If liquid has been spilled or objects have fallen
into the video product.
C. If the video product has been exposed to rain
or water.
D. If the video product does not operate normally
by following the operating instructions. Adjust
only those controls that are covered by the
operating instructions. Improper adjustment of
other controls may result in damage and will
often require extensive work by a qualified
technician to restore the video product to its
normal operation.
E. If the video product has been dropped or the
cabinet has been damaged.
F. When the video product exhibits a distinct
change in performance. This indicates a need for
service.
15. Replacement Parts - When replacement parts are
required, have the service technician verify that the
replacements used have the same safety
characteristics as the original parts. Use of
replacements specified by the video product
manufacturer can prevent fire, electric shock or
other hazards.
16. Safety Check - Upon completion of any service or
repairs to this video product, ask the service
technician to perform safety checks recommended
by the manufacturer to determine that the video
product is in safe operating condition.
17. Wall or Ceiling Mounting - The cameras provided
with this system should be mounted to a wall or
ceiling only as instructed in this guide, using the
provided mounting brackets.
18. Heat - The product should be situated away from
heat sources such as radiators, heat registers,
stoves, or other products (including amplifiers) that
produce heat.
Use
19. Cleaning - Unplug the video product from the wall
outlet before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
20. Product and Cart Combination - Video and cart
combination should be moved with care. Quick stops,
excessive force, and uneven surfaces may cause the
video product and car combination to overturn.
21. Object and Liquid Entry - Never push objects for any
kind into this video product through openings as they
may touch dangerous voltage points or “short-out”
parts that could result in a fire or electric shock.
Never spill liquid of any kind on the video product.
22. Lightning - For added protection for this video
product during a lightning storm, or when it is left
unattended and unused for long periods of time,
unplug it from the wall outlet and disconnect the
antenna or cable system. This will prevent damage
to the video product due to lightning and power line
surges.
v
General Precautions
1. All warnings and instructions in this manual should be followed.
2. Remove the plug from the outlet before cleaning. Do not use liquid aer
osol detergents. Use a
water dampened cloth for cleaning.
3. Do not use the receiver in a humid or wet place.
4. Keep enough space around the unit for ventilation. Slots and openings in the storage cabinet
should not b
e blocked.
FCC NOTICE
Note
• This equipment has been certified and found to comply with the limits regulated by the FCC
part 15, subpart C.
• This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
WARNING
!
STRANGULATION HAZARD:
Infants have STRANGLED in power cords. Keep power
cords more than 3 feet away from cribs, bassinets, play
yards and other safe sleep environments for infants.
NOTICE FOR CANADA
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Operation is subject to the following two conditions:
1)This device may not cause harmful interference, and
2)This device must accept any interference received, including interference that may cause undesirable operation.
Son Fonctionnement est soumis aux deux conditions suivantes:
1)Le matériel ne peut étre source d'interfrences et
2)Doit accepter toutes les interférences reçue, y compris celles pouvant provoquer un fonctionnement indésirable.
CANADIAN CLASS B STATEMENT: This digital device does not exceed the Class B limits for radio noise emissions from digital
apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus," ICES-003 of the Department
of Communications.
Cet appareil numérique respecte les limites de bruits radioelectriques applicables aux appareils numériques de Classe B
prescrites dans la norme sur le materiel brouilleur: "Appareils Numériques," NMB-003 edicles par la ministère des
Communications.
MODIFICATION: Any changes or modifications not expressly approved by the grantee of this device could void the user's authority
to operate the device.
Toute modification non approuvée explicitement par le fournisseur de licence de l'appareil peut entraîner l'annulation du droit
de l'utilsateur à utiliser l'appareil.
It is imperative that the user follows the guidelines in this manual to avoid improper usage which may result in damage to the unit,
electrical shock and fire hazard injury. In order to improve the feature functions and quality of this product, the specifications are
subject to change without notice from time to time.
vi
Features
• FHSS Digital Wireless Technology provides excellent image quality and clarity
• Simple installation. No video cable required (1)
• Connect multiple receivers to your surveillance recorder (DVR) to create a wireless
surveillance solution (2)
• Easily connects to a TV/Monitor (RCA) or DVR (BNC)
• Night viewing up to 75ft (23m) (3)
• Install camera indoors or outdoors (4)
• Up to 150ft (46m) indoor / 450ft (137m) outdoor wireless range (5)
Receiver Features
• Compact receiver is easy to install and operate
• VGA (640x480) & QVGA (320x240) Resolution Supported (6)
• Convenient Signal Strength Indicator
• Plug directly into a TV (RCA adapter included) or surveillance recorder or use a BNC extension
cable (included) to position the wireless receiver in a more convenient location
Camera Features
• VGA Resolution Camera
• 75ft (23m) IR Night Vision (3)
• Auto infrared light filter ensures accurate color reproduction under any lighting condition
• Weather Proof Housing (IP66 rated) (4)
1. Camera requires a wired connection to a power outlet. Power adapter included.
2. Using multiple receivers in close proximity to each other may cause a slight slowdown in frame rate performance. Try
to maintain at least a few inches of space between each receiver. 3ft. extension cable included.
3. Stated IR illumination range is based on ideal conditions. Actual range and image clarity depends on installation
location, viewing area and light reflection/ absorption level of object.
4. Not intended for submersion in water. Installation in a sheltered area recommended.
5. Maximum wireless transmission range. Actual range dependant upon building materials and other obstructions in
path of wireless signal.
6. VGA mode has a resolution of 640 X 480 pixels; QVGA mode has a resolution of 320 X 240 pixels. Use VGA mode for
best video performance. Use QVGA mode for a higher video frame rate.
vii
Table of Contents
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Wireless Receiver & Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting The Camera. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Camera Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wireless Receiver Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing Multiple Wireless Cameras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
On-Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Pairing Cameras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Appendix A: System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Appendix B: About Digital Wireless Technology . . . . . . . . . . . . . . . . . . . . 10
Appendix C: Facts About Digital Wireless Cameras. . . . . . . . . . . . . . . . . . 11
Appendix D: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Appendix E: Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Appendix F: Extending Wireless Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
viii
1
Getting Started
The system comes with the following components:
1 X CAMERA MOUNTING STAND
1 X BNC/RCA ADAPTER
1 X MOUNTING SCREW KIT
1 X WIRELESS CAMERA*
1 X WIRELESS RECEIVER*
2 X POWER ADAPTERS* (FOR
RECEIVER & CAMERA)
3FT/1M BNC FEMALE/BNC MALE
EXTENSION CABLE
1 X POWER SPLITTER CABLE FOR RECEIVER
(Included with 2 pack only)
*Number of cameras and receivers may vary by model.
CHECK YOUR PACKAGE TO CONFIRM THAT YOU HAVE RECEIVED THE COMPLETE
SYSTEM, INCLUDING ALL COMPONENTS SHOWN ABOVE.
2
Wireless
1
2
3
4
5
1
6
7
Receiver & Camera
1 Wireless Antenna
2 Resolution button:
Press to switch between VGA* and QVGA video resolutions.
3 Front LED: Gl
ows green to indicate receiver is powered up.
4 Pairing Button: F
or details, see “Pairing Cameras” on page 8.
5 BNC Connector:
Connect the BNC connector to the DVR or BNC extension cable.
6 Pairing Button: F
or details, see “Pairing Cameras” on page 8.
7 Camera Stand
*VGA mode has a resolution of 640 X 480 pixels; QVGA mode has a
resolution of 320 X 240 pixels. Use VGA mode for best video
performance. Use QVGA mode for a higher video frame rate.
11
3
Connecting The Camera
Connecting The Camera
• Before you install the camera, carefully plan where and how it will be
positioned, and where you will route the cable that connects the camera
to the power adapter.
• Before starting permanent installation, verify its performance by
observing the image on a monitor when camera is positioned in the
same location/position where it will be permanently installed.
Installation Warnings
• Aim the Cameras to best optimize the viewing area: Select a location
for the camera that provides a clear view of the area you want to
monitor, which is free from dust, and is not in line-of-sight to a strong
light source or direct sunlight.
• Avoid installing the cameras where there are thick walls or
obstructions between the Cameras and the Receiver*.
• Select a location for the camera that has an ambient temperature
between 14°F~122°F (-10°C~50°C)
• For outdoor use, installation under a shelter is recommended.
*Avoid installing in a location which requires the wireless signal to pass through cement,
concrete, and metal structures. This will reduce the range of transmission.
For details, see “Appendix C: Facts About Digital Wireless Cameras” on page 11.
Camera Setup
To install the camera:
1 Use the included mounting screws to mount the stand to the mounting surface:
• Mark
the position of the screw holes on the wall
• Drill hol
es and insert the drywall plugs as needed
• Firmly attach the stand to the wall using the provided screws
4
Connecting The Camera
2 Twist the camera into the head of the stand (1).
Adjust the angle of the camera until the desired view is set. Tighten the thumbscrews to
secure
the desired camera position (2).
1
2
3 Connect the power cable from the camera to the Power Adapter. Plug the power adapter to an
outlet or surge protector.
5
Connecting The Camera
Wireless Receiver Setup
To connect a wireless receiver to a surveillance recorder (DVR):
1 Connect the BNC connector on the receiver directly into an available video input.
Make sure to first connect and
power on the camera(s) before
powering on the receiver; this will
ensure a proper connection.
NOTE: If necessary, attach the 3ft (1m) BNC/BNC extension cable at one end to the receiver
and at the other end to the surveillance recorder.
2 Connect the power cable from the receiver to the power adapter. Plug the power adapter into
an outl
et or surge protector.
To connect the wireless receiver to a TV or VCR:
1 Attach
the included BNC/RCA adapter to the BNC connector on the receiver and plug the
r
eceiver directly into an available video input on the TV or VCR.
Connect the BNC connector to the BNC to
RCA adapter (included).
BNC extension cable
Receiver
Make sure to first connect and
power on the camera(s) before
powering on the receiver; this will
ensure a proper connection.
Rear panel of TV.
NOTE: If necessary, attach one end of the 3ft (1m) BNC/BNC extension cable to the receiver
and at the other end attach the BNC/RCA adapter, then connect the BNC/RCA
adapter to the viewing/recording device.
2 Connect the power cable from the receiver to the cable of the power adapter. Plug the power
adapt
er into a local AC power outlet or surge protector.
6
Connecting The Camera
Installing Multiple Wireless Cameras
When installing multiple digital wireless security cameras in the same environment
maintain as much space as possible between the receivers using the included 3ft BNC
extension cables, to optimize camera performance. See illustrations below for examples
of recommended 2 and 4 receiver installations.
Scenario A: Two Wireless Cameras
• Plug one receiver directly into the back of the Digital Video Rec
order. Connect the other
receiver to the included 3ft BNC extension cable and plug into the Digital Video Recorder.
Scenario B: Four Wireless Cameras
• Plug one receiver directly into the back of the Digital Video Rec
order. Connect the other
receivers to the included 3ft BNC extension cables and plug them into the Digital Video
Recorder.
NOTE: The r
eceiver included does not support an extension to a range extender antenna.
Should you require a wireless range extension, an accessory kit including an
extendable receiver and wireless antenna is available at www.lorextechnology.com.
For details, see “Appendix F: Extending Wir
eless Range” on page 15.
It is not recommended to
install more than 4 digital
wireless security cameras
in the same environment to
maintain optimal video
frame rate performance.
7
Connecting The Camera
On-Screen Display
1 Signal Indicator:The signal indicator shows the strength of the signal being received from the
camera. The number of bars in the signal indicator shows the strength of the signal.
One or no bars indicates the signal is poor. Four bars indicate a very strong signal.
2 Status Indicator: The st
atus indicator message "Connecting" appears when the receiver is
trying to locate a camera.
ATTENTION:If the signal is
l
ow (e.g. 1 or 2 bars) adjust the antennas, or reposition the
camera or receiver to improve signal strength.
Powering Multiple Receivers Using The Power Splitter Cable
The power splitter cable allows you to connect two receivers to one power adapter.
To connect the power splitter cable to the receivers:
1 Connect the power adapter to the power splitter cable (see Figure A bel
ow).
2 Connect the ends of the power splitter cable to each of the receivers.
3
Splitter cable
Power Outlet
Power Adapter
Figure A
Connect the power adapter to a 120V power outlet.
Signal Indicator
Status Indicator
8
Connecting The Camera
Pairing Cameras
To pair the camera to the receiver:
1 Make sure that the camera and receiver are both powered up.
2 On the receiver, press and hold the Pa
iring button for 5 seconds to activate pairing function.
• The on-screen displays informs you that you have 30 seconds to press the pair button on the
cam
era.
3 Press and hold the Pa
ir button underneath the antenna on the back of the camera. You must
press the Pair button on the camera within 30 seconds of pressing the Pair button on the
Wireless Receiver. If pairing is successful, live video from the camera will immediately appear
on the monitor.
Pair button
IMPORTANT
The camera and receiver have already been pre-paired at the
factory, which means that they are exclusively communicating
with each other. If for some reason the pairing is lost, follow
these steps to pair up the camera and receiver.
Pairing button
9
Appendix A: System Specifications
Appendix A: System Specifications
Receiver
Receiving Frequency Range 2.400GHz~2.480GHz
RX Sensitivity -81dBm
Demodulation GFSK
Data Rate 160 Kb/s
Supported Resolutions VGA (640x480) up to 12 FPS or
QVGA (320x240) up to 25 FPS
Power Requirement 12Vdc +/-10%
Power Consumption 200mA Max
Operating Temp Range 14°F ~ 122°F
-10° ~ 50° C
Camera
Transmitting Frequency Range 2.400GHz~2.480GHz
TX Power 16dBm
Data Rate 160 Kb/s
Modulation GFSK
TX Range 150ft (46m) indoor / 450ft (137m)
outdoor
Image Sensor Type 1/4" Color CMOS Image Sensor
Effective Pixel H: 640, V: 480
Image Processing Motion JPEG
Image Resolution Up to 640 x 480 (VGA)
Lens 5.1mm F2.8
Viewing Angle 50° (H)
AGC On
AES 1/60~1/62500 Sec.
IR Night Vision Range 75ft (23m)
Power Requirement 12Vdc +/-10%.
Power Consumption 200mA Max with IR LED, 100mA
Max without IR LED.
Operating Temp Range 14°F ~ 122°F
-10° ~ 50° C
Environment Rating IP66
Built-in IR LED 18 Units of IR LED (850nm type) for
Night Vision
Built-in Auto IR Turn On/Off CdS Drive Auto IR LED turn On/Off
Circuit
10
Appendix B: About Digital Wireless Technology
Appendix B: About Digital Wireless Technology
The Digital Wireless signal transmission type used by the Lorex LW2175R is also known as
FHSS -Frequency Hopping Spread Spectrum. This type of signal results in a private,
interference-free signal.
The 2.4GHz (2.400-2.480Ghz) band is being divided into sections or paths of 2MHz per
section
, and each second the transmission signal hops hundreds of times in a specified
sequence within this frequency range. The overall bandwidth required for frequency
hopping is much wider then 2MHz however because transmission occurs only on a small
section of this bandwidth at any given time, the signal being transmitted does not suffer
from greatly reduced signal degradation and also avoids blocked paths other devices who
act as sources of competing signals. The strength of the signal being transmitted is set to
be from 13.5-16dBm, which is much higher then the analog transmission signal allowed by
authorities around the Globe.
When an image is captured by the camera it is instantly converted from an analog
to digital
signal and packaged into small packets. With each successful transmission via the 2 MHz
paths discussed above, the packets of information containing images are delivered to the
receiver and decoded into analog information. The information can then be displayed on
devices that are connected to the wireless receiver (RX).
A device pairing process is required to synchronize the transmitter (TX, Camera) and the
receiver (RX). This allows the transmitter and receiver to be on the same frequen
cy and use
the same algorithm for frequency hopping. This ensures that only the paired transmitter
and receiver can maintain communication signal by hopping to the same frequency paths
at the exact same time. As a result, the chance that other devices within the same
frequency range are on the same frequency, at the same time and in the same order is
vastly reduced. Note that the pairing process is already done at the factory for products
that ship within the same packaging. Only when add-on devices are purchased is a pairing
process required.
11
Appendix C: Facts About Digital Wireless Cameras
Appendix C: Facts About Digital Wireless Cameras
Wired VS Wireless Cameras
A wired camera has a video cable that transmits the video signal from the camera to a recording
or viewing device.
A wireless camera does no
t use a video cable. Instead, it wirelessly transmits the video signal to
a wireless receiver that is connected to your recording or viewing device. Although the typical
digital wireless camera is priced slightly higher than a wired camera, wireless cameras can
provide cost savings compared to standard wired setups. For example, wireless cameras do not
require cabling to be run between the camera and the viewing / recording device, which reduces
installation time and cost.
Does a wireless camera require power?
Yes. Wireless cameras require two power sources: one connected to the camera, and the other to
the receiver.
How far can a wireless camera transmit a video signal?
In an open field (with line of sight), a typical wireless camera has a range between 250 to 450 feet.
In a closed environment---such as an interior of a house---the wireless camera range is between
100 to 150 feet. The signal range varies depending on the type of building materials and/or objects
the wireless signal must pass through.
Cubical walls, drywall, glass, and windows
generally
do not degrade wireless signal strength.
Brick, concrete floors and walls degrade signal strength
1
. Trees that are in the line of sight of the
wireless camera and receiver may impact signal strength.
The signal range also depends on whether there are competing
signals using the same
frequency
as the camera. For example, signals from cordless phones, routers may affect signal strength.
Range Limiting Factors
1
Reflection
The signal
reflects back
Scattering
The signal
scatters back
into multiple
new signals
Refraction
The signal
bends as it
travels through
an object (i.e
glass window)
Diffraction
The signal
changes
direction as it
passes around
an object
Attenuation
The signal
strength
weakens as it
passes through
an object
1
Source: Xirrus (2010). "Wi-Fi Range Dynamics". Retrieved online at
http://xirrus.gcsmarket.com/pdfs/Xirrus_Wi-Fi_Range.pdf
12
Appendix C: Facts About Digital Wireless Cameras
Signal Reduction Through Materials
Signal strength decreases as it passes through different types
of material. Try to position
your wireless camera and receiver in a location that does not pass through metal, or
concrete blocks, which can significantly reduce signal strength (as shown in the table
below).
Material Signal Reduction (%)
Plaster & Wood 10 - 30%
Brick 30 - 50%
Concrete Cinder Blocks 50 - 70%
Metal & Metal Cladding 70 - 90%
NOTE: Signals that must pass through wet or moist materials
(i.e. shrubs and trees) may be significantly reduced.
The stronger the signal strength, the higher the video frame rate. The lower the signal
strength, the lower the video frame rate.
Full signal strength
(high frame rate)
Low signal strength
(low frame rate)
Are Digital Wireless Camera Signals Secure?
Yes. Lorex digital wireless products feature a wireless transmis
sion method called FHSS
–Frequency Hopping Spread Spectrum.
This type of signal is highly resistant to eavesdropping as
it generates a channel hopping
sequence using an algorithm generated by the receiver, which only the camera can follow
through the "pairing" function. FHSS makes digital wireless signals secure, private, and
interference free.
How many frames per second should I expect from a digital wireless camera?
Current Lorex digital wireless cameras offer 10 - 30
FPS (Frames Per Second)
performance. Actual frame rate depends mainly on signal strength and resolution (see the
chart above). Most digital wireless cameras support one or both of the following
resolutions: QVGA, and VGA.
QVGA produces video at up to 30 FPS at 320x240 resolution.
VGA produces video at up to 10-12 FPS at 640x480 resolution.
How many wireless cameras can I install?
It is recommended to install a maximum of 4 (four)
wireless cameras per
system.
13
Appendix D: Troubleshooting
Appendix D: Troubleshooting
If you have problems with your System, there is often a quick and simple solution. Please
try the following:
Problem Solution
There is no picture from a
camera
• Check power to the camera. Make sure the adapter
is plugged in properly.
• Move the camera closer to the receiver.
The picture is dropping • Move the camera closer to the receiver.
• Try repositioning the camera, receiver, or both to
improve the reception.
The picture is or has
become choppy
• The picture may become choppy when experiencing
a lower frame rate (e.g. 6 frames per second vs. a
higher 12 frames per second).
• Try moving the camera closer to the receiver.
• Remove obstructions between the receiver and
camera.
• Try switching to QVGA mode. Resolution will be
reduced but video frame rate will increase.
The picture appears to be
unsharp
• When viewing on a large screen TV or monitor
(especially high-definition televisions), the picture
might seem unsharp as the camera is limited to VGA
resolution (640x480 pixels), while the TV or monitor
supports a much higher resolution.
• For best performance, use with TV/monitor PIP
(Picture in Picture) function. Check your TV/Monitor
product manual to see if this feature is available on
your TV/Monitor.
The picture is white • Common situation known as "washout" or "white
wash" where a strong light source is pointed at the
camera lens. The camera lens is not harmed during
a white wash.
• Do not point your camera towards a light source.
The picture is pixelated • You may be in QVGA mode. Try switching to VGA
mode by pressing the Resolution button on the
receiver.
14
Appendix E: Frequently Asked Questions
Appendix E: Frequently Asked Questions
Q: What is the maximum distance I can have between the camera and the receiver?
A: Typically
450 feet (137 m) with a clear line of sight in open space, or approximately 150
feet (46 m) in a house. Walls, studs, furniture will interfere with the range of wireless
transmission.
Q: Why does my "wireless camera" have a power cable?
A: The ter
m "wireless" refers to the lack of a video cable between the camera and the
receiver. The camera still requires a power source.
Q: What does 'line-of-sight' mean?
A: 'Line-of-sight' means that
there are no obstructions between the camera and receiver.
Obstructions include walls, buildings, trees, and certain electronic devices. Materials
containing moisture (i.e wet leaves) may also act as an obstruction.
Q: What is pairing?
A: P
airing is an electronic handshake between digital wireless devices. Pairing allows the
devices to communicate exclusively with each other.
Q: Can digital wireless cameras be paired to more than one receiver?
A: No.
Digital Wireless cameras can only be paired to one receiver. This is to prevent
interception by 3rd parties, and prevents any other device from picking up the signal - this
also means that you cannot pair one camera to multiple receivers.
Q: How can I extend the wireless range?
A: A range
extender kit is available on www.lorexcctv.com. For details, see “Appendix F:
Extending Wireless Range” on page 15.
15
Appendix F: Extending Wireless Range
Appendix F: Extending Wireless Range
The receiver included with the LW2175R series does not support range extender antennas.
Should you require a wireless range extension, a range extender accessory kit is available.
Wireless range extension should be considered if
you experience a low
signal strength
(1 or 2 signal bars) due to an extended distance between the
receiver and camera, or
because of objects preventing line of sight between the receiver and camera.
The range extender accessory kit includes a 20ft cable
and a higher power indoor/outdoor
antenna which allows you to reposition the antenna outdoors for direct line of sight with
the camera OR simply to get around objects which are blocking the wireless signal (e.g.
metal walls). Find an example below of a typical situation in which a range extender kit is
used to achieve line of sight to improve signal strength.
Example 1: No line of sight
Example 2: Line of sight achieved through use of range extender
Range Extender
Antenna
Wireless
Camera
Clear Line of Sight
Cable from range
extender
To order a range extender accessory kit, or to get more information, visit
www.lorexcctv.com, and search for WL2110KIT.
Copyright © 2011 Lorex Technology Inc.
LW2175R SERIES
www.lorextechnology.com
Version 1.0
