Sierra Wireless AirLink LX40 Hardware User's Manual page 23

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Rev. 2 January 2021
Pin 1 (Power) —Use the red wire in the DC cable to connect Pin 1 to the power
source. Include a 4 A, fast blow fuse, recommended to have no more than ±10% de-
rating over the operating temperature range, in the input power line. Sierra Wireless
recommends using a continuous (unswitched) DC 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 LX40 Chassis
Pin 3 (On/Off control)—Connected to power
Pin 4 (GPIO)—Use the green wire for I/O configurations. See
ration on page 24.
on page 14.
23
Installation and Startup
Step 6—I/O Configu-
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