Optelecom-nkf Siqura i-NVR, Руководство по установке

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Configuration
Logical cameras
Wittwin can use a physical camera input for the following purposes.
ƒ
background recording
ƒ
performing VMD
ƒ
pre-event recording
A logical camera is an object created and used by Wittwin to perform one of the above tasks
for a specific physical camera input. For each
physical camera Wittwin can have up to three
logical cameras. A camera system containing n physical cameras can have 3n logical
cameras, therefore.
The maximum number of physical cameras your system supports is determined by the model
of your recorder (
Compact or Elite ) and the licence you have purchased, as shown in table
5.1 below.
i-NVR model Physical cameras Logical cameras
16 camera license up to 48 Compact
32 camera license up to 96
32 camera license up to 96 Elite
64 camera license up to 192
By default, the first
n logical cameras are set up to record video (background recording), but
this can be configured differently by the user. In fact, any logical camera can be set to
perform any of the three tasks mentioned above. Table 5.2 illustrates how tasks and
cameras might be grouped.
Number of cameras Task / logical camera group
Physical Logical Background
recording
VMD Pre-event
recording
16 48 1 - 16 17 - 32 33 - 48
32 96 1 - 32 33 - 64 65 - 96
64 192 1 - 64 65 - 128 129 - 192
Table 5.2. Tasks assigned to groups of logical cameras
Table 5.1 Licenses and camera numbers