Troubleshooting and performance
141
Alvium USB Cameras User Guide V3.1.3
Cascading hubs divide bandwidth
The following example applies to standard behavior without individual settings.
The graphics show bandwidth distribution on a common bus. Three cameras try to
use full bandwidth at the same time. If one camera is inactive, the host will provide
its share to the others until this camera sends data again.
Figure 63: Bandwidth assignment for cascading hubs
Host
adapter
card
Hub 01
Hub 02
Camera 01
Camera 02
Camera 03
100%
50%
50%
25%
25%