connection18_ connectionWhen the resistance value of copper wire is at [20°C(68°F)]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 0.018Voltage Drop (V/m) 0.028 0.018 0.011 0.006y 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 cameramay 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 themanufacturer.M ` Be sure to connect power only after all the installation is complete.CONTROL vIA RS-485 INTERFACEThe camera can be controlled by using external controllers like a Remote controller. (RS-485Communication)(1) To control by PCConnect the RS-485 control port of the camera and the serial cable through an RS-485converter.Example) PC Serial Port Serial Cable RS-485 Converter Camera RS-485Control Port.(2) To control using a DVR or System ControllerConnect the RS-485 cable (TRX+, TRX-) to the connection port of the 485 control board that isconnected 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 valueItem Camera ID BAUD RATE UART MODE RET PKTInitial value 1 9600 8-NONE-1 ENABLEM ` To control the camera by constructing an additional controller, use the SAMSUNG-T/SAMSUNG-E/PELCO-D/PELCO-P/BOSCH/HONEYWELL protocol.