Hikvision Digital Technology DS-2CC51A7N-VF Instrukcja Użytkownika Pobierz pdf (Strona 16)

Day/Night High-definition Dome Camera·User Manual

Figure 1-1 Privacy Mask

DAY/NIGHT Auto Switch: The cameras deliver color images

during the day. And as light diminishes at night, the cameras

switch to night mode and deliver black and white images with high

quality.

AGC: AGC is a control circuit that automatically changes the gain

of a receiver or other piece of equipment, so that the desired

output signal remains essentially. When under low illumination,

AGC will regulate the gain and amplification of the video signal.

S/N ratio: It is the ratio of Signal voltage and noise voltage. The

ratio is larger, the effect of noise is less, and the image is clearer.

OSD (On Screen Display): The on-screen display (abbreviated

OSD) is an image superimposed on a screen picture, used for

displaying information and menu.

Synchronous System: Synchronization of the camera usually

contains power synchronization and internal synchronization.

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Hikvision Digital Technology DS-2CC51A7N-VF Instrukcja Użytkownika Strona 16