Axis 2400+ Manual do Utilizador descarregar pdf (Página 9)

By utilizing the built-in serial ports of a video server

you can control existing equipment such as Pan/Tilt/

Zoom (PTZ) devices or time-lapse tape recorders.

Video servers are equipped with digital inputs and

outputs. The digital inputs can be used to trigger the

transmission of images from the server.

Digital outputs can be used for instance, to open a

door remotely, or to turn on a light inside a building

when viewing images remotely.

Servers with image buffers can save and send the

images, which were collected before an alarm occurred.

See also Triggering Mechanisms on page 16.

A video server can also be connected to a wide

variety of specialized cameras such as, a highly sensitive

black and white camera, a miniature camera, or a micro-

scope camera.

What is a video server?

Analog CCTV systems are already in use in numerous different working

environments. To transmit the images from these systems over the

network, a video server can be installed. The video server connects in

parallel with the existing equipment and transmits the analog video

sources over a computer network.

A video server is ideal for enhancing any existing CCTV system.

I NTRODUCTION

Video server components

Inside a video server. The difference from a network camera is the A/D converters for four analog cameras, replacing the camera part.

CPU

FLASH DRAM

COMPRESSION

ETHERNET

ANALOG

INPUT

A/D

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Axis 2400+ Manual do Utilizador Página 9