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Figure 11
The Hardware tab
allows you to
configure DVXi
to capture video
at various frame
rates and image
sizes. You can also
configure prealarm
and postalarm
recording.
CONFIGURING HARDWARE
The Hardware tab on the Setup page (see Figure 11) allows you to select several
DVXi recording settings. To change hardware parameters, select one or more cam-
era inputs from the list (or click Select All to choose all inputs) and then adjust the
following settings:
•
Frame Quality.
Select from Low, Medium, High, and Extra High qual-
ity options. Higher frame qualities create greater video storage require-
ments.
•
Frame Rate.
DVXi can record at its maximum potential rate (see Note)
or a wide range of rates, depending on your hardware.
•
Prealarm and postalarm.
Select the amount of prealarm and postalarm
recording time, in seconds. This allows you to record events that occur
immediately before and after an alarm event. Prealarm recording tempo-
rarily stores a certain amount of video at all times in case an alarm oc-
curs, which requires a reserved amount of storage space. The amount of
prealarm recording time you can program is limited by the recording rate
and image size specified for all cameras set for prealarm recording. For
example, if all cameras configured for prealarm recording are set for a
15KB image size and one frame per second, you can divide up to 447
