Video Servers - Vivotek IP Surveillance Overview

Chap.1 IP Surveillance Overview
Fixed Dome Type
A fixed dome network camera, mostly designed for indoor surveillance, has a housing to make the object of
interest less aware of where the camera is pointing at. With a 3-axis mechanism, images can remain in an upright
orientation when it is installed either against the wall or on the ceiling. Furthermore, the design of a fixed dome
network camera can better fit in with the decor.
A fixed dome network camera can be furnished with a weather- or vandal-proof housing for outdoor applications.
Figure 1.6 Fixed dome network camera
Speed Dome Type
Compared with fixed dome type, a speed dome network camera is integrated with pan, tilt and zoom capabilities,
enabling a far greater field of view. With a high zoom capability, image stabilization and 360-degree endless pan, a
speed dome camera is mainly used for professional applications, such as airports, banks or city security.
Figure 1.7 Speed dome network camera

1.3 Video Servers

A video server is a device that converts analog signals to digital, allowing users to migrate to a digital surveillance
system without replacing existing CCTV systems.
A video server mainly includes a compression chip and an Ethernet chip, with two main types available: one port or
four ports.
Figure 1.8 Video server
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