توضیحات
دوربین‌های مداربسته (CCTV) دسته ای از دوربین‌ها هستند که معمولاً برای نظارت بر اماکن داخلی و خارجی مورد استفاده قرار می‌گیرند و بسته به شرایط محیط انواع مختلفی دارند. این دوربین‌ها به گروه‌های مختلفی مانند دوربین‌های آنالوگ، دوربین‌های دیجیتال و دوربین‌های تحت شبکه تقسیم می‌شوند.
The two latest enhancements of the EverFocus camera range – EQ 550 T / EQ 550 D Polestar series’ cameras – set new standards for existing and future day / night cameras
Through integrated DNR (dynamic noise reduction), both camera models offer a considerably decreased picture noise. What’s more, they are perfectly suitable for applications utilizing the latest compression technologies such as MPEG-4, as DNR is capable of significantly reducing storage capacity (stored images require up to 6x less capacity than cameras without DNR)
The integrated RS-485 control enables the user to control the cameras via any RS-485 keyboard providing EverFocus or Pelco-D protocol, e.g. the EverFocus keyboard EKB 500
With built-in IR cut filter – either static (EQ550D) or automatically swivelling (EQ550T), 530 TV lines horizontal resolution and 4 adjustable privacy zones, EQ 550 T and EQ 550 D meet requirements of the most demanding security surveillance applications
Features
(super-high resolution technology (530 TV lines
(built-in DNR (dynamic noise reduction
day/night function with automatically swiveling IR cut filter, optimised for correction of focus shift with IR illumination EQ 550 T
(control via RS-485 keyboard (EverFocus / Pelco-D protocol
(advanced 16-bit digital signal processor (DSP
on-screen programming
4 adjustable privacy zones
(high infrared sensitivity (EQ 550 T
support of both C-mount and CS-mount lenses
Technical Specification
| Make | Everfocus |
|---|---|
| Manufacturer | EverFocus Electronics AG |
| Model code | EQ 550 T |
| Series | Polestar Series |
| Chip Inch Size | 1/3 inch |
| Colour Type | Colour |
| Resolution TVL | 530 |
| (Digital (DSP | Yes |
| Specialist Types | Infrared |
| Direct Drive | Yes |
| Sensitivity lux | 0.002 lux |
| Lens Mount | C/CS mount |
| Electrical Specifications | Voltage: 100 ~ 240 V AC Power Consumption: 11 W |
| Picture Elements HxV | 752 x 582 |
| Back Light Compensation | Yes |
| Auto Gain Control | Yes |
| White Balance | Yes |
| Gamma Correction | 0.45 |
| S/ N (Signal/ Noise) Ratio dB | >50 |
| Synchronisation | Internal, Line-lock |
| Video Output | 1.0 Vp-p, 75 ohm |
| Physical Specifications | Dimension mm: 68 x 56 x 101 Weight g: 600 |
| Environmental Specifications | Operating Temperature oC: 0 ~ 50 |
| Additional info |
Four adjustable privacy zones |
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