Alinking ALC-9171, Руководство пользователя

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Appendix K: Troubleshooting and FAQs
Question Answer and Solution
Function
What encoder and decoder
are used by the camera for
sounds and images?
The camera uses MJPEG or H264 compression technology to provide
quality images. MJPEG is a standard image compression technology
applicable to different browsers without the need to install additional
software. H264 is a next-generation image compression standard and can
provide high image quality at low bandwidth.
The sound decoder uses PCM (Stereo, 16bit, 8kHz) compression
technology.
How many users are allowed
to view the camera
simultaneously?
The maximum number of viewers depends on the bandwidth of the client
accessing the camera. About 5~6Mbps are used to process data of the
camera, so the maximum number of viewers changes in proportion to FPS
and the resolution of the image. Obviously, the higher the number of
viewers, the lower the performances at each client end.
Is it possible to catch the
image from the camera in a
real-time manner?
Yes, you can use the snapshot function from the main control page.
Camera Installation
Can the camera be used
outdoors?
The camera is not waterproof, so a special waterproof cover must be
available for outdoor use. Please note that the waterproof cover may affect
the built-in pickup function of the camera.
Link LED does not light up.
• Check that the attached standard transformer is not damaged. Plug the
power cable and reboot the machine.
• If the problem remains, contact your dealer for help.
What network cable is used for
the camera?
The camera uses a 10 or 100 Base-T Category 5 UTP network cable.
How to install and operate the
camera behind a firewall?
If you have a firewall in your network environment, please select HTTP
mode (Port80). Generally the port 80 is always open for the browser to
access the Internet.
What are the username and
password for the first use and
after reset to factory default?
Username = root
Password= root
Please change your password immediately after entering the system to
ensure information security.
I forgot the username and
password I used for the
setting. What should I do?
Please proceed as follows:
1. Hold the Reset button for 4 seconds after booting to reset the password
to preset.
2. Change the username and the password.
I forgot the IP address of the
camera. What should I do?
Use IP Finder to locate the IP address of the camera.
Please connect the camera and the PC on which the IP finder is executed
to the same hub.
IP Finder cannot find the
camera.
• When the camera still can’t be located over 1 minute, re-activate the
camera.
• Do not connect the camera to more than one router. The IP Finder will
not be able to detect the camera.
• If the IP of PC on which the IP Finder is executed is not correctly set, the
IP Finder will not be able to locate the camera. Please confirm that the IP
address has been properly set.
• The anti-virus applications on the PC or the firewall might block the IP
Finder from execution. If you cannot execute the IP Finder, please
disable your anti-virus applications or firewall.
Internet Explorer does not
display the camera screen
correctly.
Please be sure that the version of your Internet Explorer is 6.0 or later.
Should you have any difficulties, please log on the Microsoft website to
update your browser.
Microsoft website: http://www.microsoft.com/windows/ie.