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The Power indicator is not
constantly lit
The Network indicator is
not flashing randomly.
The Active and Network
indicators are flashing
every 0.5 seconds
Your AXIS 240 works
locally, but not externally.
No image using Refresh
and/or
Slow updating of
snapshots using the
Server push function.
Triggering difficulties with
CRON scripts
Bad focus.
Faulty power supply.
Faulty cabling.
Hardware failure.
Firewall protection
Default routers required
The Internet site is too
heavily loaded.
Complex images, i.e.
those containing great
picture contrasts, have
greater file size and thus
place greater demand on
the available file space
within the AXIS 240.
Unable to triggering on
both positive and nega-
tive transitions of the Con-
trol Button and/or IO ports
(double-edged trigger-
ing).
Focus is not adjusted cor-
rectly
Verify that you are using an Axis PS-D power supply.
1. To verify that the cables work, ping the address of a
known existing unit on your network.
2. If the cabling is OK and your network is reachable, you
should receive the reply similar to this:
...bytes = 32 time = 2 ms,
Contact your Axis dealer.
Check the Internet firewall with your system manager.
Check whether you need to configure the default routers
settings.
Use a script running on your web server to relay images
from the AXIS 240 to the Internet. This is particulary impor-
tant when generating zoom and hugesize images. See
"Point to Point Protocol (PPP)" on page 64
The memory constraints become significantly more acute if
multiple clients try to access the same snapshot.
Try limiting the number of clients.
Repetitive trigger conditions that occur in quick succession
of one another can be missed. This is because the com-
mand initiated by the first trigger event may not have been
fully executed prior to the second event. This scenario is
demonstrated in the illustration below:
Command
?
Command
T1
Trigger
This feature has particular significance when using com-
mands that take a relatively long time to process, e.g. mail
or ftp, especially if they are conjugated with a loop state-
ment. See also Appendix H - CRON Script Command Ref-
erence .
Refer to the camera documentation on how to adjust the
focus of your cameras.
Command
T2
T3
Time
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