TS-7970 Terminal Blocks
From embeddedTS Manuals
The TS-7970 includes two removable terminal blocks (OSTTJ0811030) for power, UARTs, CAN, and other general purpose IO.
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- ↑ This ground should be used for the power supply since it includes a ferrite bead to help suppress noise.
The DIO_1 and DIO_2 IO can be outputs, or inputs. As inputs the digital threshold is 1.2V. To guarantee low it must be < 0.5V, or for high > 2.0V. There is an internal 1.5k pullup to 5V that will bias the input high.