Moxa Technologies user manual VPort 2140 User’s Manual

Quality setting	Size of each frame	Bandwidth demand for 30 fps
Medium	9.3 Kbyte	2246 Kbps
Standard	11.15 Kbyte	2676 Kbps
Good	13.76 Kbyte	3303 Kbps
Detailed	16.35 Kbyte	3925 Kbps
Excellent	20.3 Kbyte	4886 Kbps

Q: How can I keep Video Server as private as possible?

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

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

A:Video Server provides a custom camera command interface to control cameras that are not supported. The details are described in this manual. Be sure that the COM port settings are applied to the camera specifications. The camera control cable included is shown in the package contents. 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:Why can I see image files when I use dir in FTP even if the alarm is not triggered?

A:Every time Video Server starts, it will capture the images as vpre.jpg. If there are previously saved image files that are not retrieved, Video Server will keep them until they are accessed.

Q:How will the stored images be processed if Video Server loses power?

A:If a user has defined the snapshot interval, Video Server will capture images periodically as pre-alarm stage. Once the pre-defined condition is match, the pre-alarm images will be kept and the current images will be saved. The subsequent images will be stored as post-alarm stage. Users may retrieve these files either by downloading via FTP, or direct Video Server to send them in e-mails. This means that after monitoring conditions are met, Video Server will keep these image files until user retrieval even if power is lost.

Q:If I set Video Server to send e-mails of images whenever the conditions are met, will my e-mail account overflow?

A:It is recommended to use transient state instead of steady state. For instance, use ‘Input is Rising’ and ‘Input is Falling’ rather than ‘Input is High’ and ‘Input is Low’ to let the condition be triggered only when state is changed.

Q: The image is not clear enough. Is anything broken?

A:The lens can be focused by rotating the outer ring. Rotate it clockwise or counter-clockwise to focus near or far.

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