I/O Configuration; I/O Pins - Sierra Wireless FX30 User Manual

Rev 4 March 2019
• Pin 1 (Power) —Use the red wire in the DC cable to connect Pin 1 to the
power source.
• Pin 2 (Ground)—Use the black wire in the DC cable to connect Pin 2 to
ground. See also Step 2—Mount and Ground the FX30 Chassis
• Pin 3 (On/Off)—Connected to power
Pin 3 must be connected.
• I/O 1—configured for digital input
• Optional—I/O 2 and I/O 3
Note: See Table D-1, FX30 Hardware Feature to Linux Interface Mapping,
the GPIO and Linux interface mapping of pin 3, I/O 1, I/O 2, and I/O 3.

I/O Configuration

The FX30 power connector has three pins you can use for I/O configuration:
• I/O 1—Digital input only; allows wakeup from ultra low power mode
• I/O 2—Digital and analog input; allows wakeup from ultra low power mode
• I/O 3—Digital input and digital output
Note: See Table D-1, FX30 Hardware Feature to Linux Interface Mapping,
the GPIO and Linux interface mapping of the I/O pins.
Note: The IoT Expansion Card has four GPIO pins that you can program using Legato.
For details, refer to the IoT Expansion Card Design

I/O Pins

You can use the I/O pins as:
• Digital inputs
(See Table 2-2 on page 26 and
• High side pull-ups/dry contact switch inputs
(See Figure 2-20 on page 27.)
• Analog inputs
(See Table 2-3 on page 28 and
• Low side current sinks
(See Figure 2-23 on page 28.)
• Digital outputs/open drains
(See Table 2-4 on page 29 and
Note: The I/O pin functionality is programmable in Legato applications.
25
Installation and Startup
Specification.
Figure 2-19 on page 26.)
Figure 2-22 on page 28.)
Figure 2-24 on page 29.)
on page 12.
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