Alkeria NECTA Series - Status LED; When One NECTA Is Not Enough

5. System Setup 69
Note
Trying to reach a bandwidth higher than the maximum supported by the
controller usually makes the camera stop communicating correctly and may
freeze the controller. When this happens, unplug and re-plug the camera to
re-establish a correct communication.
Furthermore, we recommend to disable any technology that may slow down the CPU frequency and
responsivity (SpeedStep and all Power Management States/C-States). These settings can be usually ac-
cessed through the BIOS/UEFI conguration utility.
Low-costUSB 3.2 Gen 1x1 to PCI Express multiport adapters, as well as USB 3.2 Gen 1x1 ports built-in in
some PCs, use a single controller and/or internal USB 3.2 Gen 1x1 hubs. Devices connected to adjacent
ports therefore often share the same USB 3.2 Gen 1x1 controller and may interfere with proper NECTA
operation.
5.2 STATUS LED
NECTA features a status LED on its back, showing the operating conditions of the camera. When a USB
connector is plugged in, LED remains red until the computer detects and congures the camera. At that
point the LED turns green. When the camera starts acquiring, LED turns orange.
Table 5.1 details the meaning of the status LED indications.
Status LED Status
OFF Device not powered
RED Camera powered, waiting for driver enumeration
GREEN USB plugged and enumerated
ORANGE Camera acquiring
BLINKING Generic error (contact support@alkeria.com )
- Generic error (contact support@alkeria.com )
Table 5.1: Status LED behaviour
Different behaviours of the status LED may indicate that camera is malfunctioning.
5.3 WHEN ONE NECTA IS NOT ENOUGH...
You can even connect multiple NECTA cameras at the same PC and use them simultaneously: Application
Programming Interface (API) makes it possible to balance each video data stream.
When designing the application, you can choose how the connected NECTA cameras will share the avail-
able USB 3.2 Gen 1x1 bandwidth, freely modulating acquisition rate, pixelformat and ROIof each NECTA
based on the specic application needs. Refer to Section 8.9.6 for further details.