Digital Surveillance Video Ultimate Products | disvu.net

Model No:

• DD57A/FF001800FID

Description:

DD57A/FF001800FID:
High Resolution Wide Angle Camera

Key Features:

• 1/ 3” SONY Super HAD II CCD
• Built-in multi-language OSD menu
• Resolution: Color-600TVL
• Electronic shutter adjustable
• Wide Angle 130˚

Pick-up device	1/3" SONY Super HAD II CCD
Effective pixels	NTSC:768*494, PAL:752*582
Resolution	Color-600TVL @ F1.2, B/W-700TVL
Sensor size	4.9mm*3.7mm
Sync system	Internal
Min. illumination	0.01lux (0.001 Sens up Mode)
S/N ratio	More than 52dB
Electronic shutter	1/50 / 1/100000sec / FLK/Manual/Fixed
Lens	1.8mm
Flicker less mode	On/off
Mirror function	On/off
Privacy zone	On/off (4 AREAS)
BLC	On/off (64 AREAS)
SSNR III /DNR	Low /Medium /High/off
Motion detect	On/off (64 AREAS)
Gamma	Auto / Adjustable
White balance	Auto (ATW, AWB, FIXED, MANUAL)
AGC	On/off (0-255)
Day & Night	Color, B/W, Auto IRC level adjust
Video output	1.0V p-p Composite Video Output, 75 Ohm
Power supply	DC12V
Operating temp	-10 ~50oC
Operating Humidity	20% ~ 80% RH
Power consumption	110mA

DVR stands for Digitals Video Recorder. Advantage of using a DVR technology over analog recording is that the Digital Data recorded by DVR can be compressed and saved in special hard disk and can be reviewed later. Video compression plays an important role in overall operation, properly compressed video can also save disk space. All DVRs use some kind of compression algorithm called a codec to keep the digital video files at a manageable size. The average size of an uncompressed still image frame at 320x240 resolution in 24-bit true color is about 230400 Byte or 2.3 Mega Byte. Same image frame in 32 bit color is about 307200 Byte or 3.07 Mega Byte. An hour’s worth of one channel of uncompressed video at 25 frames per second would take up 21,600 megabytes (21.6 GB) Uncompressed video of one hour will take hard disk space Frame size 320*240 Pixel at 25 frames per second would take up 25*3600* 230400 Byte = 20736 Mega bytes = 20.736 GB (24 bit color) 25*3600* 307200 Byte = 27648 Mega bytes = 27.648 GB (32 bit color)

Maximum HDD available is for 2TB=2000Gb. However a DVR can support more than one HDD. DISVU FD Series DVR can support upto 8 HDDs expandin gthe strogae space upto 16TB.

H.246 standard based video compression core technology with substantially increased coding efficiency and enhanced robustness to netwrok environments in cost effective embedded platform. this technology will support TV broadcast, digital entertainment, internet streaming and visual communications over broadband and wireless networks.