Vivotek VS3102 User Manual download pdf (Page 96)

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Q. I have a PTZ camera that is not on the supported list. How can I control it?

A. VisualServer 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. The camera control cable included is shown in the package content. Prepare your

own cable if necessary. The general PTZ 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 PTZ 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 VisualServer check the status of digital inputs?

A. VisualServer 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,

VisualServer 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 VisualServer when I setup some options in the application?

A. When VisualServer 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 VisualServer but the image is not good.

A. Although VisualServer 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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Vivotek VS3102 User Manual Page 96