JVC VN-C655 manual Characteristics, Operating Precautions, Introduction

Introduction

Characteristics

High-speed Rotating Table High-speed rotating table with a horizontal panning speed of 300û/sec and vertical tilting speed of 180û/sec makes it possible to recall a preset position quickly.

Optical + Electronic zooming

The 25X optical zoom lens and 10X electronic zoom circuitry allows the camera to be used even in surveillance situations in which the object is very small.

Day/Night Surveillance

When the light is low, the camera is able to switch automatically to the high-sensitive (Black & White) mode by turning ON/OFF the IR filter.

It also supports infrared illuminators (wavelength of 850 nm to 880 nm).

Employment of a highly-sensitive CCD and bright zoom lens

Employment of a highly-sensitive CCD and bright zoom lens with a maximum aperture ratio of F1.6 (at the Wide end) produces a highly sensitive color mode of 2.0 lx (AGC: 20 dB, 50%).

Frame Rate

Supports a maximum frame rate of 30 fps when resolution is 640 x 480 in the JPEG compression format.

Supports Multicast

Support for multicast enables sending of an image data to multiple PCs on the network at one time without lowering the frame rate.

DSP with a wide dynamic range

Even objects that have a large difference in brightness can be monitored clearly.

Private Mask Feature

This feature enables setting to mask a certain portion of the shooting area if it is to be hidden.

Motion Detection Feature

Enables output of alarm upon detecting motion of images within a specified area.

Built-in Web Server

Enables browsing using the Internet Explorer.

Operating Precautions

To save energy, turn off the power supply of the system when not in use.

This camera is intended for indoor use. It cannot be used outdoors.

This camera has been designed for suspension from ceilings. Fixing it to the ground surface or at an angle may cause malfunction or shorten the product's service life.

Do not install or use the camera in the following locations.

¥Places exposed to rain or water

¥Places containing vapor or oil soot, such as kitchens

¥Places exceeding the operating ambient temperature range (0û to 40û)

¥Places where corrosive gases are generated

¥Places nearby radiation or X-rays as well as sources of strong radio waves or magnetism

¥Places subject to vibration

¥Places with excessive dust

Insufficient ventilation may cause the camera to malfunction. Be careful not to block ventilation around the camera.

This camera radiates heat from its surfaces

(top panel facing ceiling and side panel). Do not install at a location that may trap heat, such as near the walls.

Do not install at a location that may expose the camera directly to cool air, such as nearby the air outlet of air conditioners. This may cause moisture to condense within the dome cover.

Dew condensation may occur when there is a drastic change in the ambient temperature of the camera, hence causing a malfunction. When the camera is installed at such locations, turn on the power after allowing it to dry for a few hours.

Do not point the camera lens at a strong light source such as the sun. Doing so may cause the camera to malfunction.

This camera contains a built-in AGC circuit. As a result, gain increases at dark places and screen may appear grainy. This is not a malfunction.

When an equipment that generates a strong magnetic field, such as transceivers, is used near this camera with the AGC turned on, beat noises may appear in the image. When using a transceiver, therefore, place it at least 3 m away from this camera.

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