45
Note:
• Images from a camera channel for which the pre-
event recording area is created on the hard disk
drive will be recorded on the created pre-event
recording area. Refer to the "Format the pre-event
recording area" section on page 91 for information
on how to create the pre-event recording area.
• Refer to page 46 for the recording duration of the
pre-event recording without creating a pre-event
recording area as references.
■
Event rec. - Post-event
• Rate
Select the recording rate of the post-event record-
ing from the following.
Off*
1
*
2
*
3
/1ips/2ips/3ips/5ips/10ips/15ips/All/I-Frame
The available recording rates vary depending on the
compression method of the camera. Refer to the
"Check/change the settings of the camera manual-
ly" section (page 51) for further information on how
to configure the compression method setting of the
camera.
• Duration
Select the recording duration of the post-event
recording. The following are available for the record-
ing duration.
2s/5s/10s/20s/30s*
1
*
2
*
3
/1min/2min/3min/5min/
10min/15min/Manual/Continue
Manual:
Recording will be performed only during
alarm signals (site alarm, terminal alarm, com-
mand alarm) are being supplied. Recording will
be continued at least for 8 seconds.
Continue:
Recording will not stop until the [ALM]
button is clicked.
■
Audio rec.
Determine whether or not to record audio together with
images.
Off*
1
*
2
*
3
/On
Audio can be recorded together with images. It is
impossible to record audio without images.
Audio recording is available only when using cameras
that support the audio recording function.
Camera setup
■
SD memory rec.
Determine whether or not save images on the SD mem-
ory card when the network communication is discon-
nected during emergency recording.
The following recording rates are available for "SD
memory rec.".
Off*
1
*
2
*
3
/0.1ips/0.5ips/1ips
Note:
• The recording rate setting for "SD memory rec." is
available only for cameras that support the SD
memory recording function and their image com-
pression method is set to "M-JPEG". Refer to page
36 for further information about the SD memory
recording.
• Do not set the recording rate of the SD memory
recording for the same camera with multiple record-
ers.
• It is impossible to simultaneously perform audio
recording and the SD memory recording.
• When the "SD memory rec." setting on the
"Emergency rec." page is set to other than "Off" for
a camera channel, the "Audio rec." setting on the
"Emergency rec." page for this camera channel will
be set to "Off" automatically.
*1 The default setting when the camera is not regis-
tered
*2 The default setting when the camera is registered
(Compression method: JPEG, M-JPEG)
*3 The default setting when the camera is registered
(Compression method: MPEG-4)
Important:
• Depending on the network environment or the size
of images to be recorded, the recording rate and the
pre-event recording duration of the recorded data
may not be exactly same as the set recording rate
and recording duration for the pre-event recording.
• When no pre-event recording area is created on the
hard disk drive for a camera channel, the recording
duration of the pre-event recording with audio will
be 30 seconds.
• When "MPEG-4" is selected for the image compres
-
sion method of the camera, it is recommended to
set the refresh interval of the camera to "1 second".
When a longer interval is set for the refresh rate of
the camera, it may fail to create pre-event recording
data.
