DESCRIPTION
*  Advanced digital signal processing (DSP) technology ensures outstanding color reproduction and low light performance, capable of capturing details such as facial features, clothing, and automobile colors that can serve as vital evidence. Setting a new standard for imaging quality, night or day, the Hitachi VKS655EN marks another phase in the evolution of high-quality digital surveillance systems.

*  A newly designed 36x auto-focus optical zoom lens delivers enhanced resolution, clearly capturing subject details at a distance. Proprietary Hitachi auto-focus control makes it possible to track rapidly moving subjects, while the addition of Digital processing boosts sensitivity to a maximum of 1/1-second (VK-S655N) or 1/0.75-second (VK S655EN) exposure time, making it possible to capture bright, clear images in a variety of lighting situations.

*  In daylight conditions, the IR cut filter ensures clear, high-quality color images. At night or in other very low light situations, the IR cut filter is automatically removed to allow capture of bright, high-contrast black and white images. a 12x digital zoom delivers a maximum zoom factor of 432x. The improved lens design produces crisp clear details, even in peripheral areas of the image.

*  One extremely important requirement in the surveillance and crime prevention fields is the reproducibility of actual colors. The Hitachi VK-S655EN recreates the actual color to the fullest extent possible not just in well-lit areas, but in darker ones, allowing more accurate depiction of the surveillance area. High-performance CCD teams with digital signal processing to achieve outstanding low-light performance, capable of capturing images in standard mode at a minimum subject illumination of 1.0 lx.

*  Hitachi 's frame noise reduction minimizes random noise and after-images often associated with moving subjects, making this high-performance unit suited to a variety of surveillance scenarios. Producing clear, sharp images even in challenging low-light conditions, this technology also facilitates image compression in network camera systems.

*  Digital processing boosts sensitivity to a maximum of 1/1-second (VK-S655N) or 1/0.75-second (VKS655EN) exposure time, making it possible to capture bright, clear images in a variety of lighting situations. In daylight conditions, the IR cut filter ensures clear, high-quality color images. At night or in other very low light situations, the IR cut filter is automatically removed to allow capture of bright, high-contrast black and white images.

*  The VK S655EN can also provide the same 35x zoom mode as in the VK-S654N/EN. A 35x compatibility mode is available to ensure that no picture display problems occur even due to changes in the angle of view. Switching from the VK-S654N/EN will pose no problems caused by the difference in magnification.

* System: PAL: VK-S655EN  ( NTSC: VK-S655N )

SPECIFICATIONS:

CCD Image Sensor - Image Size	4.5mm Dia. (TYPE 1/4)
Total Pixels	470k (795 x 596)
Effective Pixels	440k (752 x 582)
Progressive Scan	YES
Lens - Optical Zoom Magnification	36x
35x compatibility mode	YES
Practical f-value	36x(3.3-119mm) / 35􀍇(3.4-119mm)
Practical H.angle	36x(60.2°(w)* - 1.8°(t)) / 35x(58.2°(w)* - 1.8°(t))
F-value	F1.4(w) - F4.2(t)
Zoom Speed (Manual)	4.6s*/6.6s
(In Preset	Trace / No-): 3.2s/2.0s
Focus - Auto	VAF
Manual (Far/Near)	Provided
Focal Range (Setting)	infinity-1.5m(t) - 0.01m(w)*
IR Cut Filter Removable - Auto	Pro. AER * (OFF - ON - 1/3* - 1/4k)
Manual (ON/OFF)	Provided
Durability - Zoom/Focus/Iris	500k cycles
IR Removable	50k cycles
DSP	DSP-8
Serial interface - Method	speed: RS-232C : 57.6k / 38.4k / 19.2k / 9.6k / 4.8k* bps
Command Protocol	EAP(Echo control based on Address Protocol)/AFP􀊢Ack control based on Function Protocol
RS232C logic voltage level	5V
Functions - Digital Slow Shutter	YES w/o WDR
Frame Output	OFF*/ON
Wide Dynamic Range	OFF*/ON (Auto* [ offset ]/Manual)
Frame Noise Reduction	OFF/ON*
Image Stabilizer	OFF*/ON (Digital Zoom max. 1.3X)
Image Reverse	OFF*/ON
Mirror	OFF*/ON
Vertical Invert	OFF*/ON
Image Freeze	OFF*/ON
B&W	OFF*/ON
Privacy Masking	OFF/ON* [2 zone 2-D(2/1 screen)*/8 zone 3-D(4/1 screen)]
Fixed Privacy Masking	OFF*/ON [optional􀉿12 x 24 units ]
Title Display	OFF*/ON [optional􀉿24 characters]
Motion Detect	OFF*/ON
Motion Tracking	YES(area assignable)
Various Customizable Settings	YES [ Preset store (max.111), WB tuning ]
Dynamic Spot Cancel	YES
Slow Response AE	1x* - 254x
Digital Zoom - Zoom Magnification	OFF*/ON (max. 12X)
Electrical Shutter - Auto	Pro. AE (1/50 - 1/4ks)
Auto ( DS Shutter)	Pro.AE *(1/1.5-1/3*-1/4ks:Seamless)
Manual	Shutter priority 1/0.75-1/30ks
Manual (Sensitivity)	64X, 32X, 16X, 8X, 4X, 2X
Iris	Auto*/Manual
BLC (in WDR OFF mode)	OFF*/ON
White Balance	Auto*/Manual
Horizontal Resolution(Typ.) - Normal (1/60s)(NTSC)/(1/50s)(PAL)	typ.540 min.520 TVL
Luminance S/N Ratio	More than 50 dB
Min. Sensitivity (Typ.) - IR-cut ON (1/60s)(NTSC)/(1/50s)(PAL)	1.0 lx
IR-cut ON (1/4s)(NTSC)/(1/3s)(PAL)	0.1 lx
IR-cut OFF (1/4s)(NTSC)/(1/3s)(PAL)	Approx. 0.01 lx (B/W)
Condition	(F1.4(w), 50IRE)
Sync System	Internal/External (50Hz)
Power - Supplied Voltage	9 - 12V DC
Supplied Current (@9V)	290mA
Supplied Current Max.(@9V)	380mA
Consumption (@9V) all motors inactive	2.6W
Consumption Max.(@9V) Forcus/Zoom Motors active	3.4W
Video Output (NTSC/PAL)	VBS:1.0Vp-p, Y/C Output
Video Output (Digital output)	YUV422 8bit output (REC656 type)
Dimensions (W x H x D)	50 x 60 x 89.5mm (w/ M-case)
Weight	Approx. 235g (w/ M-case)
No. of Connectors	4 [ (9pin/4pin : Analog Output) , (24pin/30pin : Digital Output) ]
Operating Temp. (Recommended)	-10°C - 60°C (0°C - 40°C)

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