Note on consumable parts

The following parts are consumable and should be replaced after a certain number of hours or a count of operations.

The service lives given below are only typical values. They may vary depending on the oper- ating environment and conditions.

Note that the replacement of consumable parts is chargeable even when they are replaced be- fore the termination of the warranty period.

¥Zoom lens assembly

Zooming operation : 2 million times

 

Focusing operation

: 4 million times

¥

Slip rings

: 5 million operations

¥

Cooling fan

: 30,000 hours approx.

Note on auto focusing

Although this unit incorporates a one-push auto-focusing system and EASY AF functions, auto-focusing may sometimes be impossible depending on the object and camera setup. In this case, adjust the focusing manually.

Objects and images with which auto focusing may be difficult:

¥When the image brightness is extremely high.

¥When the image brightness is extremely low.

¥When the image brightness varies continu- ously (for example when the object is a flash- ing light).

¥When the image contrast (difference between bright and dark) is very poor.

¥When the image does not contain a vertical contour component.

¥When vertical stripe patterns recur on the screen.

Camera setups with which auto focusing may be difficult:

¥When the AGC is activated and the image is coarse.

¥When SENSE UP is activated and the im- age contains only little motion.

Zooming

When zooming is stopped near the Telephoto end during manual operation or by selecting a preset position, focusing may deviate slightly. In addition, the manual zooming operation may not always be smooth.

These phenomena are due to the characteristics of the built-in lens and are not malfunctions.

Preset positions

¥The zooming position of the camera can be set to a total of 100 preset positions, including the home position.

¥The TILT position can be set and operated only between 0¡ to 90¡ even when the item ÒFLIPÓ is set to ON.

Observe the following points when carrying out

maintenance of the camera.

¥Turn off the power to all equipment to be used before proceeding.

¥Clean the dome cover using a lens cleaning cloth (or tissue).

The dome cover may become stained in a very short period in certain operating environments. If the dome cover lens becomes excessively con- taminated, clean it with a lens cleaning cloth (or tissue) moistened with a solution of neutral de- tergent in water.

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JVC VN-C655U manual Zooming, Preset positions, Camera setups with which auto focusing may be difficult
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VN-C655U specifications

The JVC VN-C655U is a high-performance network camera specifically designed for surveillance and security use. Ideal for various applications, ranging from corporate environments to public spaces, the VN-C655U brings together cutting-edge technologies that enhance its functionality.

One of the standout features of the VN-C655U is its exceptional image quality. Equipped with a 1/3-inch progressive scan CCD sensor, the camera delivers crisp and clear video at resolutions of up to 640x480 pixels. The progressive scan technology is particularly advantageous as it reduces motion blur, making it suitable for capturing fast-moving subjects. Furthermore, the camera offers a frame rate of up to 30 frames per second, ensuring real-time monitoring without noticeable latency.

The VN-C655U is also designed with versatility in mind. It supports both indoor and outdoor usage, thanks to its robust construction and weather-resistant features. This adaptability ensures that the camera can perform effectively in different environmental conditions. Additionally, the camera is equipped with a 10x optical zoom lens, which allows for detailed close-ups without losing image quality. With a wide field of view, the VN-C655U can cover expansive areas and is perfect for monitoring large facilities.

Connectivity is another key aspect of the VN-C655U. It supports Power over Ethernet (PoE), which allows for simplified installation by streamlining cabling requirements. Users can also access the camera remotely via a web interface, making it easy to configure settings and monitor footage from anywhere using an internet connection. This feature is integral for security personnel needing real-time oversight and control over surveillance operations.

The JVC VN-C655U incorporates advanced image processing technologies, including wide dynamic range (WDR) to handle challenging lighting conditions. This capability ensures clear images, even in high-contrast environments where shadows and bright light coexist. Additionally, the camera supports motion detection, generating alerts and notifications when activity is detected within designated areas, enhancing security and response times.

Overall, the JVC VN-C655U is a feature-rich network camera tailored for modern surveillance needs. With its excellent image quality, versatile design, advanced connectivity, and intelligent monitoring capabilities, it serves as a reliable option for anyone seeking to enhance the security of their premises. Whether for business or public safety applications, the VN-C655U proves to be a valuable asset that combines performance with flexibility.
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