Videobox
– User manual
16
Calculation of the overall switching capacity
The network devices, such as industrial switches or PoE switches, should be selected according
to the switching capacity that is required by all the IP cameras that are used in the installation.
The following table shows the bandwidth assessment for streams of different types and
resolutions per used camera.
Resolution
Minimum bandwidth
H.264
H.265
FullHD@30fps
~ 8 Mbps
~5 Mbps
4K@30fps
~ 28 Mbps
~ 18 Mbps
Note: Please refer to the camera’s manufactures documentation
Example
To calculate the overall switching capacity, the sum of the bandwidth consumption of all the IP
cameras has to be calculated. For example, if 4K and FullHD cameras are used, the total
consumption has to be calculated following the column
Bandwidth consumption
in the table
below . H.264 video compression has been selected for all the IP cameras:
Resolution
Quantity
Bandwidth consumption
4K
2
56 Mbps
FullHD
2
16 Mbps
Overall switching capacity
72 Mbps
Suggested models
Below some example of network devices are listed that meet the recommended requirements:
Type
Features
Suggested part number
Industrial
Switch
Industrial switch with 4 LAN 10/100/1000 ports
and 4 48V PoE ports
Moxa EDS-P206A-4PoE-T
PoE
switch
48V PoE switch to supply the webcam on the
main pole (the 4 PoE ports of the switch might be
used by 3 WLAN devices and other webcams)
Moxa EDS-P206A-4PoE-T
WLAN kit
To connect the webcams mounted on the “slave”
poles
Ubiquiti NanoStation
