Vista VK2 Series, Руководство пользователя, Страница: 45 / 79

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Pre-event: A pre-event buffer contains images from the time immediately preced- ing
the event trigger. These are stored internally in the server. This buffer can be very
useful when checking to see what happened to cause the event trigger. Check the box
to enable the pre-trigger buffer, enter the desired total length in seconds, minutes or
hours, and specify the required image frequency.
–
Post-event: This function is the counterpart to the pre-trigger buffer described above
and contains images from the time immediately after the trigger. Configure as for pre-
event.
–
Prefix file name: This name will be used for all the image files saved. If suffixes are
also used, the file name will take the form
<
prefix
> <
suffix
>
.
<
extension
>
.
–
Additional suffix: Add either a date/time suffix or a sequence number, with or without
a maximum value.
When the settings are complete, click Save button to save the settings, or click Reset button to clear
all of the information you entered without saving it.
∇
Alarm Out
When the network camera detects an event, it can control external equipment connected to its
alarm output port.
•
Enable alarm out: If selected, the output becomes activated for as long as the event is
active.
•
Type: Select a type of NO (Normally Open) or NC (Normally Closed).
When the settings are complete, click Save button to save the settings, or click Reset button to clear
all of the information you entered without saving it.