Axis Communications Video Server 243Q Blade - Manual (Page 56)

56 AXIS 243Q Blade - Troubleshooting
For further assistance, please contact your reseller or check the product’s support pages on
the Axis Website at www.axis.com/techsup
Image too dark or too light Check that the termination dip switch for the video source is set to the correct position. See
also the online help on Video Source Settings.
Black borders around the video
image Adjust the X and/or Y offset, in the Video Source Settings. See the online help for information.
Problems uploading own files There is only limited space available for the upload of your own files. Try deleting one or more
existing files, to free up space.
Missing images in uploads This can occur when trying to use a larger image buffer than is actually available. Try lowering
the frame rate or the upload period.
Slow image update Configuring pre-buffers, motion detection, high resolution images, and high frame rates, will
reduce the performance of the video server.
Slow performance Slow performance may be caused by heavy network traffic, multiple users accessing the unit,
low performance clients, and features such as Motion Detection, Event handling, Image rota-
tion.
Bad snapshot images
Display incorrectly configured on
your workstation In Display Properties, configure your display to show at least 65000 colors, i.e. at least 16-bit.
Using only 16 or 256 colors on your display will produce dithering artifacts in the image.
Incorrect exposure in images
Incorrect line termination If the AXIS 243Q Blade is to be connected in loopthrough with other equipment, disable the
input termination by turning the corresponding DIP switch to OFF.
Problems with the MPEG-4 format
Lower frame rate than expected Check with the administrator that there is enough bandwidth available. Check also the settings
for bit rate control, in the Video & Image > Advanced > MPEG-4 settings. Using an inappro-
priate video object type can also affect the frame rate. See the online help for more informa-
tion.
Check in the AMC control panel applet (MPEG-4 tab) that video processing is not set to Decode
only I frames.
Lower the image resolution.
Reduce the number of applications running on the client computer.
No MPEG-4 displayed in the
client Check that the correct network interface is selected in the AMC control panel applet (network
tab).
Check that the relevant MPEG-4 connection methods are enabled in the AMC control panel
applet (network tab).
In the AMC control applet, select the MPEG-4 tab and click the button Set to default MPEG-4
decoder.
No multicast MPEG-4 displayed
in the client Check with your network administrator that the multicast addresses used by the
AXIS 243Q Blade are valid for your network.
Check with your network administrator to see if there is a firewall preventing viewing.
Multicast MPEG-4 only accessi-
ble by local clients Check if your router supports multicasting, or if the router settings between the client and the
server need to be configured. The TTL (Time To Live) value may need to be increased.
Poor rendering of MPEG-4
images Color depth set incorrectly on clients. Set to 16-bit or 32-bit color.
If text overlays are blurred, or if there are other rendering problems, you may need to enable
Advanced Video Rendering. This is done on the MPEG-4 tab in the AMC control panel applet.
Ensure that your graphics card is using the latest device driver. The latest drivers can usually be
downloaded from the manufacturer's web site.
Color saturation is different in
MPEG-4 and Motion JPEG Modify the settings for your graphics adapter. Please see the adapter's documentation for more
information.