Q. Why does the image not refresh regularly?

A. In a modem environment, it is because the bandwidth of PPP connection is far less than Ethernet. If the difference of the timestamp is not stable, adjust the UART FIFO lower in both receiving and transmitting from modem property in the control panel. While in Ethernet, it may be due to insufficient network bandwidth shared by other users.

Q. How does NetworKam detect the supported PTZ cameras automatically?

A. When the system is powered up, NetworKam will monitor the CTS of camera control cable continuously. As long as the CTS is detected, NetworKam will try to handshake with supported cameras until a supported camera is found. There is no more camera detection once a PTZ camera is recognized.

Q. How many users are allowed to watch NetworKam at the same time?

A. To achieve the best effect, NetworKam will allow twenty users to connect at the same time. It is recommended to build another web server to host a large quantity of users by retrieving images from NetworKam periodically.

Q. How fast is the video rate of NetworKam?

A. The JPEG codec can process 30 frames per second internally. However the total performance is subject to many coefficients as follows,

1.network throughput and bandwidth share,

2.number of users,

3.the complicated objects in view results in larger image file,

4.the level of your PC or notebook which is responsible of displaying images.

In general, the transfer rate in general local network environment can achieve over 200 kilobytes per second and approximately 10 to 20 pictures of normal environment per second.

Q. How can I keep NetworKam as private as possible?

A. NetworKam is designed for surveillance purpose and has many flexible interfaces. The user authentication and special confirmation in installation can keep NetworKam from unauthorized access. You may also change the HTTP port to non-public number. You can check system log to examine any abnormal activities and trace the origins.

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Vivotek IP2121, IP2111 user manual 886-2-22404099 886-2-22404097

IP2111, IP2121 specifications

Vivotek, a renowned leader in the IP surveillance industry, has a diverse range of IP cameras designed for various security applications. Among these, the Vivotek IP2121 and IP2111 stand out due to their advanced features, robust technologies, and reliable characteristics.

The Vivotek IP2121 and IP2111 are both designed for high-quality video surveillance. The IP2121 features a 1-Megapixel sensor capable of delivering stunningly clear images with a resolution of 1280 x 800 pixels. This ensures that every detail is captured, whether during the day or night. On the other hand, the IP2111 is equipped with a similar sensor but focuses on delivering a more compact and cost-effective solution for users who require less intensive surveillance needs. Both models support H.264 compression technology, which significantly reduces file sizes without compromising image quality, thereby optimizing bandwidth usage and storage space.

One of the important aspects of both cameras is their superior low-light performance. The Vivotek IP2121 is designed with a day/night function, which automatically switches from color to monochrome mode when light levels drop, ensuring clear images even in challenging lighting conditions. This feature is complemented by WDR (Wide Dynamic Range) technology, which enhances image quality in scenes with high contrast between light and shadow.

Both models boast a weather-proof IP66 rating, making them suitable for outdoor installations. This feature protects the cameras against rain, dust, and other harsh environmental conditions. The cameras are also powered over Ethernet (PoE), allowing for easy installation without the need for additional power supplies.

In terms of monitoring capabilities, the Vivotek IP2121 and IP2111 support multiple streaming formats, ensuring compatibility with various video management systems (VMS). They come with built-in motion detection capabilities, which can trigger alerts and notifications when suspicious movement is detected.

The user-friendly interface of Vivotek's software ensures that setting up and managing the cameras is straightforward. These features, coupled with the ability to easily integrate with other Vivotek devices, provides a comprehensive surveillance solution.

Overall, the Vivotek IP2121 and IP2111 represent reliable choices for users seeking efficient, high-quality surveillance systems that combine advanced technology with durability, making them perfect for both residential and commercial applications.