Physical Interface
74 Basler pilot
Figure 27 shows a typical circuit you can use to monitor an output line with an LED or an opto-
coupler. In this example, the voltage for the external circuit is +24 VDC. Current in the circuit is
limited by an external resistor. The circuit in Figure 27 is monitoring output line 1.
Fig. 27: Typical LED Output Signal at +24 VDC for the External Circuit (Example)
By default, the camera’s exposure active (ExpAc) signal is assigned to Output Line 1. The exposure
active signal indicates when exposure is taking place.
By default, the camera’s trigger ready (TrigRdy) is assigned to Output Line 2. The trigger ready
signal goes high to indicate the earliest point at which exposure start for the next frame can be
triggered.
The assignment of camera output signals to physical output lines can be changed by the user.
For more information about output line pin assignments and pin numbering, see Section 7.2 on
page 62.
For more information about the exposure active signal, see Section Section 8.7 on page 98.
For more information about the trigger ready signal, see Section Section 8.6 on page 96.
For more information about assigning camera output signals to physical output lines, see
Section 10.2.1 on page 139.
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