55
11.3 Camera Link
®
Taps
The standard defines a tap as "the data path carrying a stream of pixels". This means the
number of taps equates to the number of simultaneously transferred pixel.
Notice
Please do not mix up sensor digitization taps and Camera Link
®
taps!
11.3.1 Tap Configuration
Within the subsequent sections, the transmission of images with different pixel formats
(bit depth) linked to the employment of different numbers of taps is displayed.
The following table shows the adjustable tap configurations.
Configuration
Cables
CL Base (1T8, 2T8, 3T8, 1T10, 2T10, 1T12, 2T12)
1
CL Medium (3T10, 3T12, 4T8, 4T10 4T12)
2
CL Full (8T8)
2
CL Eighty Bit (10T8, 8T10)
2
11.3.2 Tap Geometry
Since frame grabbers possess the ability of image reconstruction from multi-tap cameras
"on-the-fly", the Camera Link
®
standards demands the specification of the used / sup-
ported tap geometries from the manufacturers of both, cameras and frame grabbers.
11.3.2.1 Single Tap Geometry
For single tap transmission the cameras of the Baumer LXC series employ the 1X-1Y tap
geometry:
11.3.2.2 Dual Tap Geometry
For dual tap transmission the cameras of the Baumer LXC series employ the 1X2-1Y tap
geometry:
Notice
nTx
n = number of pixels
x = bit depth
(e.g. 1T8=1 pixel, 8
bit)
◄ Figure 44
Tap geometry 1X-1Y.
The pixel information
is transmitted pixel-by-
pixel and line-by-line.
◄ Figure 45
Tap geometry 1X2-1Y.
