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					Model No. 
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					VHD-20N 
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			| 
				 
					Image Sensor 
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					1/3 inch Exmor CMOS 
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			| 
				 
					Effective pixel 
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					2.38 mega pixel(16:9) 
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			| 
				 
					Horizontal Resolution 
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					1080p30/25, 720p30/25 
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			| 
				 
					Signal standard 
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					NTSC/PAL 
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			| 
				 
					Zoom 
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					20x optical zoom 
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			| 
				 
					Focal length 
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					F=4.7-94.0mm 
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			| 
				 
					Horizontal Angle 
			 | 
			
				 
					Near-end 55.5°~Far-end 3.0° 
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			| 
				 
					Gain control/Focus 
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					Auto/manual 
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			| 
				 
					SNR ratio 
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					≥50dB 
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			| 
				 
					Wide dynamic 
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					D-WDR 
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			| 
				 
					Speed 
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					Pan: 0~100°/S(Default: 29°/S), Tilt: 0~80°/S (Default: 20°/S) 
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			| 
				 
					Preset position 
			 | 
			
				 
					Preset Point: 9 for remote control, 255 for PELCO, 64 for VISCA. 
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			| 
				 
					Pan/Tilt movement range 
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					Pan: 340°(max speed 80°/S), Tilt: 120°(max speed 60°/S) 
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			| 
				 
					Control terminal 
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					RS-232, RS485 
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			| 
				 
					Control Protocol 
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					VISCA, PELCO-D, PELCO-P(RS-232, RS485) 
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			| 
				 
					Video output 
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					USB,HDMI,SDI,RJ45 
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			| 
				 
					Audio input port 
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					3.5mm 
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			| 
				 
					Installation 
			 | 
			
				 
					Support desktop, Tripod, Wall mount and Ceiling mount 
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