User manual

Rolera Thunder User Manual 14

Triggered Operation

The Rolera Thunder camera offers several methods of integration with external trigger sources,

such as delay generators or laser pre-triggers. Each camera has a 10-pin, Hirose HR10A I/O

connector (pinout functions are described in Chapter 5) on the back for trigger input/out and

various TTL input and output operations. A special cable is available from QImaging to access

primary signals such as "Trigger input," "Expose out," "Frame readout," and "Shutter out." In the

default mode, the camera triggers on the rising edge of a TTL signal. Rolera Thunder camera’s

support the trigger modes described in the next sections.

Trigger-first Mode

In this mode, the camera requires only one trigger to acquire a sequence of frames. The camera

can operate in overlap or non-overlap mode depending on the settings explained in the previous

section. Once the initial trigger is received, the camera ignores any further triggers until the

entire exposure/readout sequence is completed (see Figures 13 and 14, which show a three-

frame sequence).

Figure 13. Trigger-First Mode Timing Diagram: Overlap Mode

Figure 14. Trigger-First Mode Timing Diagram: Non-Overlap Mode

Trigger

Ignored

Readout

Exposure

Clears