Moxa VPORT 254-M-SC-T Manual do Utilizador descarregar pdf (Página 89)

Appendix A Frequently Asked Questions

Q: What if I forget my password?

A: Every access to the video encoder needs authentication, unless the admin password is set up

as blank. If you are one of the managed users, you will need to ask the administrator for the

password. If you are the administrator, there is no way to recover the admin password. The

only way to regain access to video encoder is to utilize the RESET button on the top panel

to restore the factory settings (see Chapter 1 for details).

Q: Why can’t I see video from the video encoder after it has been authenticated?

A: There are many possible scenarios:

1. If you have just installed the video encoder and are unable to see the video, check the

video modulation on the System Configuration\Video\Camera Modulation page.

2. If the video encoder is installed correctly and you are accessing the video encoder for

the first time using Internet Explorer, adjust the security level of Internet Explorer to

allow installation of plug-ins.

3. If the problem still exists, the number of users accessing the video encoder at the same

time may exceed the maximum that the system allows.

Q: What is the plug-in for?

A: The plug-in provided by video encoder is used to display motion pictures. The plug-in is

needed because Internet Explorer does not support streaming technology. If your system

does not allow installation of 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 the video encoder. It is maintained by an

internal real-time clock, and automatically synchronizes with the time server if the video

encoder 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 it takes to store recorded video and snapshots into memory, or

the time it takes to send the images to the SMTP and FTP server when events occur.

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Moxa VPORT 254-M-SC-T Manual do Utilizador Página 89