Moxa Technologies user manual VPort 2310 User’s Manual Troubleshooting

VPort 2310 User’s Manual Troubleshooting

Q: What is the plug-in for?

A:The plug-in provided by Video Server is used to display motion pictures on versions of Internet Explorer that do not support server push technology. If your system does not allow installation of any plug-in software, the security level of the web browser may need to be lowered. It is recommended that you consult the network supervisor in your office before adjusting the security level.

Q: Why is the timestamp different from the system time of my PC or notebook?

A:The timestamp is based on the system time of Video Server. It is maintained by an internal real-time clock, and automatically synchronizes with the time server if Video Server is connected to the Internet and the function is enabled. Differences of several hours may result from the time zone setting.

Q: Why doesn’t the image refresh regularly?

A: This may be due to the time taken for storing snapshots into memory when events occur.

Q.How does the Video Server detect the supported PTZ cameras automatically?

A.If a camera is not detected, the Video Server will monitor the CTS of the camera control cable continuously. As long as the CTS is detected, the Video Server will try to handshake with supported cameras until a supported camera is found. Camera detection will cease once a PTZ camera is recognized.

Q: How many users are allowed to access Video Server at the same time?

A:Basically, there is no limitation. However the video quality also depends on the network bandwidth. To achieve the best effect, the Video Server will allow 20 users to be connected. It is recommended to build another web server to host a large quantity of users by retrieving images from the Video Server periodically.

Q: What is Video Server’s video rate?

A:The MPEG4 codec can process 30 frames per second internally. However the total performance is subject to many coefficients as follows:

1.Network throughput.

2.Bandwidth share.

3.Number of users.

4.The complicated objects in view results in larger image file.

5.The level of your PC or notebook which is responsible for displaying images.

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

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