Sub-link Acquisition

Applies to the following firmware variants of Closed1633 Coaxlink Quad G3 and 1633-LH Coaxlink Quad G3 LH.

(1-slm-camera), (1-sls-camera)

The Sub-link Acquisition feature allows to acquire images from specific 8-connection CoaXPress cameras.

The 8-connection CoaXPress link is divided into 2 sub-links. Each sub-link connects to a Coaxlink card using the 1D8SL4 connection scheme:

8-connection camera using 2 sub-links and 2 Coaxlink cards

The first 4-connection sub-link connects to the "sub-link-master grabber": a Coaxlink card fitted with the 1-slm-camera firmware variant.

The next 4-connection sub-link connects to the "sub-link-slave grabber": a Coaxlink card fitted with the 1-sls-camera firmware variant.

Each grabber delivers one-half of the image frame into a GenTL buffer. The application has to reconstruct the whole image frame by merging the contents of the two corresponding buffers. This is shown in the 320-sublink EGrabber sample program.

The master grabber controls the camera and manages the system triggers.

Both grabbers are configured to capture all the image data of their respective sub-link.

This feature applies only to 8-connection area-scan cameras having the following characteristics:

□ The image header and the image data of the first line are packed together into a single CoaXPress data packet and delivered to CoaXPress Connection 0.
□ For the remaining lines of the frame (or ROI), the image data of a single image line are packed into a single packet and delivered to the next CoaXPress Connection. Connections are rotated using the CoaXPress standard packet distribution ordering rule: (0 to 7, then back 0).
□ The image frame (or ROI) height must be a multiple of 8 lines to ensure that the last image line is delivered on the last connection (Connection 7).