4xem IPVS1A User Manual page 96

Q. I have a PT Z camera that is not on the supported list. How can I control it?
A. Video Server provides a custom camera command interface to control the cameras that are not
supported. The details are described in the manual. Be sure the COM port settings are applied to the
camera specification. T he camera control cable included is shown in the package content. Prepare your
own cable if necessary. The general PT Z command is composed of one start command and one stop
command. When editing both commands in the edit box of the configuration page, use comma(s) to
separate commands. Each comma represents 200 milliseconds. If the user has some serial control device
other than the PT Z camera, the special URL is provided to send the desired commands. For quick access,
integrate the URL to another homepage on your own web server.
Q. How fast will Video Server check the status of digital inputs?
A. Video Server will check input status in less than half a second. However, to avoid repeatedly checking
conditions too often and to allow the devices connected to digital outputs to function properly, Video
Server will delay 3 seconds by default after each condition matches. Users may change it according to
specific applications. During this period, any condition will be ignored.
Q. Why can I not access Video Server when I setup some options in the application?
A. When Video Server is triggered by events, snapshots will take more time to write them into memory. If
the events occur too often, the system will always be busy storing images. It is recommended to use
sequential mode or external recorder program to record motion pictures if the event is frequent. If you
prefer to retrieve images via FTP, the value could be smaller since FTP responses quicker than the Web
does. Once the system is too busy to configure, use the restore factory default and reset button to save the
system.
Q. I try to connect my black-and-white and color cameras with Video Server but the image is not good.
A. Although Video Server allows users to choose color or black-and-white images for each camera,
hybrid camera types may increase video processing time and reduce system performance.
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