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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.