Opto-Coupled I/O Lines#
- Opto-coupled I/O lines are preconfigured to operate as input or output. You can't change the line mode of opto-coupled lines.
- If your camera has opto-coupled lines, one of them is always a dedicated input line and another a dedicated output line.
- Opto-coupled I/O lines have the advantage of being considerably more robust against EMI than GPIO lines.
- Opto-coupled I/O lines have longer propagation delays (response times) compared to GPIO lines.
- The minimum required pulse width for input triggers is longer compared to GPIO lines. Make sure to provide sufficient time for the camera's input circuit to react. For most cases, a pulse width of 100 μs should be long enough.
|Determining the current status of a single opto-coupled I/O line (high / low)||Line Status|
|Determining the current status of all I/O lines||Line Status All|
|Specifying an action for when the camera receives an input signal on the opto-coupled I/O line||Trigger Selector|
|Selecting an output signal for an opto-coupled I/O line||Line Source|
|Inverting all input or output signals (high -> low, low -> high)||Line Inverter|
Sample Circuit Diagrams#
→ See Circuit Diagrams (ace).