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• Depending on the timing of an event occurrence,
the recording duration of the recorded data may not
be exactly same as the set recording duration for
the post-event recording.
• When selecting "On" for "Audio rec.", make sure
that the settings of the camera are configured to
transmit audio. Set also the audio bit rate of the
camera to "32kbps".
• When the audio bit rate of the camera is changed
during operation, set the "Audio rec." setting of the
recorder to "Off" once, and then set to "On" again.
• Audio may be interrupted depending on the audio
transmission interval setting of the camera. Change
the settings of the camera according to the network
environment.
• Audio may be interrupted depending on the record
-
ing rate setting. Change the recording rate setting
according to the network environment.
• To record audio, select "Mic input" or "Interactive
(Full-duplex)" for the "Audio transmission/reception"
setting of the camera. "Interactive(Full-duplex)" may
not be available depending on the model or version
of the camera. Refer to the operating instructions of
the camera in use for further information.
• Audio will be recorded regardless of the screen pat
-
tern (1-screen, multi-screen).
Note:
• When "MPEG-4" is selected for the image compres
-
sion method of the camera, set the recording dura-
tion to 10 seconds or more.
• Refer to the following for the recording duration of
the pre-event recording as references.
Recording rate of the pre-
event recording
3ips
5ips
10ips
JPEG/VGA/24 KB or
equivalent
50s
30s
15s
JPEG/VGA/48 KB or
equivalent
25s
15s
8s
JPEG/VGA/128 KB or
equivalent
10s
6s
3s
[Measurement] button
It is possible to check if the set recording rate and
transmission rate are appropriate for the network in use
by clicking the [Measurement] button. When the record-
ing rate or the transmission rate is displayed in red, it
may be impossible to transmit live images or record
images at the current rate. It will take around 90 sec-
onds to check.
When the result value is beyond the maximum network
speed of the recorder, the following may occur due to
the heavy network traffic:
Some images to be recorded may not be done.
Some live images to be displayed may not be done.
Some alarms to be issued may not be done.
Operational response may become slow.
The recorder may reboot.
Even when the result value is below the network speed
(128 Mbps as indication), the above problems may
occur depending on number of the connected cameras
and PCs.
Important:
• Network traffic changes every moment. Set the
recording rate and the live image transmission rate
plus margin by referring to the measurement result.
• In the process of the measurement, recording, play
-
back, live image display and copying will stop.
Note:
• Other users currently accessing the recorder will
forcibly be logged out. They need to log in to the
recorder again after the measurement.
• The result value is the reference value.
• Depending on the network traffic, different result
value may be displayed even when the
[Measurement] button is clicked without changing
any setting. Depending on the network traffic or
other causes, the following may occur.
• Live images are not transmitted as configured
• Images are not recorded as configured
• Response of the web browser becomes slow
• The web browser is disconnected.
• Recording cannot be performed
• We make no guarantee for any damages incurred by
recording malfunction or error occurrence regard-
less of what the cause may be.
