Sierra Wireless FX30 User Manual page 26

Sierra Wireless FX30 User Guide
Rev 4 March 2019
Digital Input
Digital input is available on I/O 1, I/O 2, and I/O 3 on the power connector.
Note: To use I/O 3 as a digital Input, GPIO56 (that drives I/O 3 when used as a digital
output) must be low.
You can connect any of these pins to a digital input to detect the state of a digital
sensor or pulse counter.
FX30
V V
in
Internal pull-up
Internal Pull-up
Off
V 3.0 V
High
Figure 2-19: Digital Input
Note: When using a digital input, the pull-up should be Off.
Table 2-2: Digital Input
Pull-up State
Off Low —
High 3.0
26
Gateway
V or 3.3 V*
in
I/O 1, I/O 2, I/O 3
10 kResistor
Digital input
Off
Minimum Typical
—
—
Maximum Units
1.0 V
Vin V
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