232Alvium USB Cameras User Guide V3.6.4
Performance and troubleshooting
Why does the camera not transfer images?
Performance
How can I improve camera performance?
1.
The value for
DeviceLinkThroughputLimit is set higher than the bandwidth
supported by the host system.
Then: Check if sufficient bandwidth is assigned to the camera. See Host setup
and bandwidth on page 221.
2.
The camera is connected to a USB 2.0 port and requires a bandwidth higher than
50 MBps.
Then: Connect the camera to a USB 3.1. Gen 1 port.
1.
Check if the hardware sufficiently supports your USB camera.
See the Alvium USB Cameras Accessory Guide at
www.alliedvision.com/en/support/technical-documentation/
alvium-usb-documentation.
2.
Check if the USB host adapter card and the USB PCIe host controller support the
available bandwidth.
See Requirements for USB PCIe cards and host controllers on page 222.
3.
Check if the camera shares the bus with other devices reducing the available
bandwidth.
Connect the camera to an individual bus, not shared by other devices.
For more information, see Dividing bandwidth between devices on a common USB
3.0 or 3.1 Gen 1 bus on page 223.
4.
Check if the camera is connected to cascading hubs, reducing the available
bandwidth.
Attach devices directly to a separate USB 3.0 or 3.1 Gen 1 bus. If you want cameras
to share a common bus, use only a single hub to attach devices. For more
information, see Dividing bandwidth between devices on a common USB 3.0 or
3.1 Gen 1 bus on page 223.
5.
Check if all your USB accessories support USB 3.0 or 3.1 Gen 1.
For recommended USB accessories, see the Alvium Cameras Accessory Guide
www.alliedvision.com/en/support/technical-documentation/
alvium-usb-documentation.