Lian Yi Da Science CM203C User manual
CM203C Wireless Transmitting Camera
User Manual
Thank you for using CM203C Wireless camera. Please read this manual carefully before
you use it. And it will benefit you to use this product better.
OPERATING RESTRICTION
DO NOT use the product to monitor products or activities that are relevant to people’s life.
1. Monitoring or products or activities concerned directly with people’s life.
2. Monitoring related to people’s security, antiques or rare articles.
*For it is not designed and manufactured for these purposes.
DO NOT put the product too close to medical equipment.
1. Radio waves might cause breakdown of medical electrical equipment thus causing incidents.
2. Place the product at least 22cm away form a heart pacemaker. Radio waves may influence heart
pacemakers and lead to respiratory disturbance.
DO NOT use the product to carry out any illegal activities (such as sneak preview, etc.)
DOMEMEIE NOT put the package plastic bags in reach of children or babies.
*It might cause asphyxia if children or babies put the bags into their mouths.
DO NOT plug theAC adapter into the outlet in improper situation.
*Plucking or plugging AC adapter by Wet hand might cause electric shock.
Plugging AC adapter unsteadily might cause fire or electric shock.
DOT NOT cover the AC adapter when it is connected to power socket DO NOT place the adapter
near heaters and DO NOT put it on the floor which is equipped with a heater.
*The above mentioned operations might cause fire or incidents.
DO NOT use it aboard; please abide by the airway’s provision.
*It might influence communications aboard and flying apparatus. This will result in accident, possible death
and severe physical hurt.
DO NOT put the camera in a wet place where water might splash or where rainwater and mist
might cause corrosion (Except for weather-proof series).
*Such a place might cause fire, shock, short circuit, etc.
DO NOT disassemble or repair the camera, the receiver and other relevant peripherals.
*Improper disassembly might cause damage to the product or the peripherals.
DO NOT put the camera in quaky places.
*The camera may be unstable or out of operation if installed improperly. Such installation may also cause
breakdown.
DO NOT use the receiver on the surface of thermolabile material.
*Please embed thermal insulating material when using on the surface of any thermolabile material.
DO NOT place or use theAC adapter on temperature sensitive materials.
*The above practice might cause plastic distortion, fading or sticking on the surface.
DO NOT use several cameras with neighbouring frequencies working to close at the same time.
*The electromagnetic wave signals of the neighbouring frequencies might cause slight interferences and so
influence the receiving effect.
DO NOT let several cameras with the same frequency work at the same time.
*The overlap of the electromagnetic wave signals of the same frequency might cause severe interferences and
so result in failure to receive signals.
DO NOT use the camera in places which are covered by metal.
*The surrounding metal such as elevator, cabin, might shield the electromagnetic waves, and result in failure to
receive signals.
NO NOT use the camera in complex environment. The obstruction of stumbling blocks will affect
the electromagnetic wave and influence the receiving range.
*Wall, tree and other stumbling blocks might absorb, reflect the electromagnetic waves, and influence the
receiving rang.
1. Specification Parameters::
CM203C Wireless transmitter specification Parameters
Image Device 1/3” CMOS image sensor
TV System PAL/CCIR NTSC/EIA
Validity Pixel PAL: 628×582 NTSC: 510×492
Image Area PAL: 5.78×4.19mm NTSC: 4.69×3.45mm
Horizontal Defination 320TVLines
Scan Frenquency PAL/CCIR: 50Hz NTSC/EIA: 60Hz
Minimum Illumination 3LUX
Sensitivity 18 dB/AGC OFF
Output Power 8dBm
Output Frequency 2.4GHz (2.414GHz、2.432GHz、2.450GHz、2.468GHz)
Frequency Controller Adapt to MPU and phase locked loop to control frequency exactly,
which possesses high stability.
Transmitter Signal Audio, video
Open Transmission Distance 20-30M
Fixed Voltage DC+8V
Fixed Current 500mA
Power Consumption ≤10mW
Working temperature -20～+50℃
2. Diagram
.
3. Operation Instruction:
1) Put the camera in the direction you want to monitor.
2) Insert DC8V/500mA power adapter into the interflow power plug, and insert its DC output
plug into the DC input plug of the camera and turn power on.
3) Please put cameras 2 meters away from each other when two or more cameras used
simultaneously. The distance between receiver and cameras should be more than 2 Meters
too, otherwise signal interference would influence receiving result.
4) Fix 2.4G antenna to the camera ANT jack and screw down.
5) Connect receiver and TV or monitor with AV cable;
6) Insert DC8V/500mA power adapter into the interflow power plug, and insert its DC output
plug into receiver’s input plug, then turn power on.
7) Choose proper receiving channel to make the frequency be the same with frequency of
transmitter.
8) Connect camera and TV or monitor with AV cable, you may get audio and video signals.
4. Problems and solving：
1)There is no image on TV or monitor screen
▲Please check whether the TV or monitor’s power adapter has been installed well or not.
▲Please Check whether the key of the power adapter has been turn on or not
▲Please check whether power adapter has been insert to receiver’s input power jack.
2) There is no image or the image is not clear
▲Please check camera power adapter has been switched.
▲Please check if the distance is too long between the camera and receiver (The direct
distance should be within 100m), or if there are any electromagnetism obstruction around
(e.g. steel construction will counteract transmitting signals.)
▲Please make sure the frequency of the wireless camera is the same as that of receiver.
(Two cameras with the same frequency can not work properly within effective distance,
thus interference will be caused)
▲Please confirm the receiver antenna has been fixed.
▲Please keep far away from big copper or iron electromagnetism obstruction. High-power
transmitter in the same frequency and car broadcasting station may also cause interference.
5.Accessories:
AV cable one piece
DC8V/500mA power adapter one piece
Manual one piece
Receiver one set (optional)
FCC NOTE:
THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV
INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS
EQUIPMENT. SUCH MODIFICATIONS COOULD VOID THE USER'S AUTHORITY
TO OPERATE THE EQUIPMENT.
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.
