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The following diagram shows a typical circuit using the opto-coupled input line (Line 1). As an example, a TTL or CMOS logic gate is used in the external circuit.
For electrical requirements of your camera model, see here.
The following diagram shows a typical circuit when a GPIO line is set to operate as an input. As an example, Line 2 is connected, and a TTL or CMOS logic gate is used in the external circuit.
The following diagram shows a different example of an external circuit using a GPIO line.
For electrical requirements of your camera model, see here.
The following diagram shows a typical circuit when a GPIO line is set to operate as an output. As an example, Line 2 is connected.
For electrical requirements of your camera model, see here.