According to the Camera Link standard, four LVDS signals are reserved for general-purpose camera control by the frame grabber
Camera manufacturers can define these signals to meet their needs for a particular product.
The signals are named :
| ● | Camera Control 1 (CC1) |
| ● | Camera Control 2 (CC2) |
| ● | Camera Control 3 (CC3) |
| ● | Camera Control 4 (CC4) |
Each control line can be configured as a Camera Trigger or as a General Purpose output.
Trigger in RC control mode
A transition (either rising or falling edge) on this line resets the camera. This action initiates either a new exposure/readout, or a readout of a frame for an area-scan camera or a line for a line-scan camera.
Trigger in RG control mode
The leading edge (either rising or falling edge) on this line initiates a new exposure.
The trailing edge terminates the exposure and initiates the readout of a frame for an area-scan camera or a line for a line-scan camera.
The pulse width is actually the exposure time.
General Purpose output
Usually, CC1 is used for reset or expose signal for asynchronous reset cameras.