How to Use the Camera, Control via RS-485 Interface

Installation Procedures

When the resistance value of copper wire is at [20ºC(68ºF)]

Copper wire size(AWG)	#24(0.22mm2)	#22(0.33mm2)	#20(0.52mm2)	#18(0.83mm2)
Resistance value(Ω/m)	0.078	0.050	0.030	0.018
Voltage drop(V/m)	0.028	0.018	0.011	0.006

•As shown in the table above, voltage decreases as the wire gets longer.

Therefore use of an excessively long adaptor output line for connection to the camera may affect the performance of the camera.

✽Standard voltage for camera operation : DC 12V±10%, AC 24V±10%

✽There may be some deviation in voltage drop depending on the type of wire and the manufacturer.

Control via RS-485 Interface

The camera can be controlled by using external controllers like a Remote controller. (RS-485 Communication)

(1)To control by PC

Connect the RS-485 control port of the camera and the serial cable through an RS-485 converter.

Example) PC Serial Port (COM1) → Serial Cable → RS-485 Converter → Camera RS-485 Control Port

(2)To control using a DVR or System Controller

Connect the RS-485 cable (TRX+, TRX-) to the connection port of the 485 control board that is connected to the DVR or System Controller.

	485 Control Board Connection Port			RS-485 Control Port
	(+) CONNECTION TERMINAL (TRX+)				485+
	(- ) CONNECTION TERMINAL (TRX-)				485-
* RS-485 Communication establishment initial value

	Item	Camera ID	BAUD RATE	UART MODE		RET PKT
	Initial value	1	9600	8-NONE-1		ENABLE

Notes

•To control the camera by constructing an additional controller, use Pelco-D protocol or STW protocol (Samsung Techwin protocol).

How to Use the Camera

Function Menu Structure

Setup Menu

LENS	• DC	• VIDEO	• MANUAL
EXPOSURE	• SHUTTER	• AGC	• SENS-UP
EXPOSURE	• RETURN	• AGC	• SENS-UP
	• RETURN
WHITE BALANCE	• ATW	• MANUAL	• AWC → SET
WHITE BALANCE	• ATW	• OUTDOOR	• INDOOR
		• OUTDOOR	• INDOOR
BACKLIGHT	• OFF	• BLC	• WDR
BACKLIGHT	• HLC	• BLC	• WDR
	• HLC
SSNR	• ON	• OFF
DAY/NIGHT	• COLOR	• B/W	• AUTO
DAY/NIGHT	• EXTERN	• B/W	• AUTO
	• EXTERN
IMAGE ADJUSTMENT	• FREEZ	• V-REV
IMAGE ADJUSTMENT	• D-ZOOM	• V-REV	• H-REV
(IMAGE ADJ.)	• D-ZOOM	• SHARPNESS	• H-REV
(IMAGE ADJ.)	• RETURN	• SHARPNESS
	• RETURN
	• CAMTITLE	• SYNC	• MOTION DET
SPECIAL	• PRIVACY	• DIS	• COMM ADJ
	• LANGUAGE	• RESET	• RETURN
EXIT

How to Set up the Functions

You can set up functions using the 5 buttons on the rear of the camera.

UP button

SET button

LEFT button

DOWN button

RIGHT button

COLOR CCD CAMERA 20 User Guide

COLOR CCD CAMERA 21 User Guide

SCH-735 specifications

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