Author: 罗威

Specification

Model	CCA-4724WS-21
Pick up Element	1/2.7" OV 2.1MP CMOS Sensor
Effective Picture Elements (H×V)	NTSC: 1920(H) × 1080(V)
Resolution	1080p
Minimum Illumination	0.01 Lux/F1.2
	0Lux (with IR LED ON)
S/N Ratio	More than 50dB
Scanning System	Progressive
Synchronous System	Internal
Auto Electronic Shutter	NTSC: 1/30s~1/60,000s
Gama Characteristic	0.45
IR Distance	65 FT (with ￠5X21 PCS Infrared LED)
Video Output	1Vpp, 75Ω (AHD, TVI, CVI & 960H)
Auto Gain Control	Auto
Power/Current	DC12V(+/-10%)/500mA
Lens	2.8-12mm Varifocal Lens
Dimension (in)	5 1/8” (dia) x 4” (h)
Weight (lb)	1.65lbs
Storage Temperature	-22°F~140°F RH95% MAX
Operating Temperature	14°~122°F RH95% MAX

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER OR BACK NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING TO OUALIFIED SERVICE PERSONNEL.
CAUTION: CSA CerTIFIED/UL LISTED CLASS 2 POWER
ADAPTORS MUST BE USED IN ORDER TO
COMPLY WITH ELECTRICAL SAFETY
STAN DARDS.

RISK OF ELECTRIC. DO NOT OPEN

CAUTION:

CCA-4724WS-21

Indoor IR Dome Camera
1080p AHD/TVI/CVI/960H

Accessories list

Name	Number
CCA-4724WS-21	1
User Guide	1

3706 ALLIANCE DRIVE
GREENSBORO, NC 27407-2016
(888) 50-CREST/336-855-6422
FAX: 336-855-6676
www.crestelectronics.com

Main Features

Device connection

Common Problems and Troubleshooting

> Auto Gain Control (AGC)
Built-in auto gain control (AGC) circuit. The color camera
can get high definition picture in low Lux condition.
> Auto Electronic Shutter (AES)
Built-in auto electronic shutter function. The color
camera’s AES speed can reach 1/100,000s.
> Gama Characteristic
Camera Gama characteristic is 0.45.
> Scanning Mode
NTSC or PAL mode.
> Switch the output signal by OSD button
Press “left” key after 5 seconds then release : CVBS
Press “right” key after 5 seconds then release : TVI
Press “up” key after 5 seconds then release : AHD
Press “down” key after 5 seconds then release : CVI

Note:
● Please note the camera’s operating temperature is 14°F~122°F .
Use of the product outside this range is not recommended.
● This installation should be made by a qualified service person and conform to all local codes. Crest Electronics will not be responsible for damages or injuries as a result of improper installation

Safety instruction

1.Before using the camera ,please read this manual carefully and
keep it safely for later use.
2.Installation should be proceed by professional service and follow
manufacturer’s instructions, do not dismantle without authoriza
tion.
3.In order to prevent sensor ,do not expose lens to intense light source in long time.
4.Do not touch sensor directly. Please covers the dustproof cover
when the camera is not being used.
5.Please use a dry soft cloth to clean the camera. If dirt difficult to clean, use detergent with water and wipe dry the camera.
6.Do not install camera under air conditioning’s air gate ,or else lens blur with condensation of moisture.
7.Please ensure that all electric power sources are turned off when not open , installation ,clean, etc operation.
8.Please transporting , using and storing the camera in allowable
temperature and humidity.
9.If the camera was broken, for example power cord or plug damaged, Splash liquid or foreign matter fall into camera, raining, wetting, etc can’t work situation, please contact manufacturer
or maintenance center (modify and maintenance without perm
ission, you must be responsible for the problems).

> No Picture after providing power
Please check the power supply voltage and positive &
negative connections.
Please check all the connecting cable and monitors whether
they are connected correctly or not.
> The picture has flowing interference ripples
May be caused by AC power interference.
Check the monitor and peripheral equipments used.
> The picture background color changes continuously
The fluorescent lamp’s electromagnetic field cause color roll.
This is proper phenomenon of the cameras.
Reduce the fluorescent lamp numbers or increasing the
distance between the camera and the fluorescent lamps can
improve it.
Use power supply external sync. camera can solve it.
> The picture is tearing
The power supply’s voltage is unstable.
Connecting cables are not connected correctly or have high
impedance.

INTRODUCTION

The Crest Electronics CCA-4724WS-21 camera is based on the latest high-resolution sensor and is capable of delivering a resolution of 1080p. The Wide Dynamic Range of the sensor allows the camera to capture detailed images even in challenging lighting conditions. With built-in Smart IR and varifocal lens, this camera can be used to suit a wide variety of needs.
Please read this instruction manual carefully to ensure proper use of the camera.