Led Indicators - ICP DAS USA FR-32R User Manual

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3.6. LED Indicators

There are several LED indicators located on the
module. They are one Power LED, one Communication
Run LED, one Error LED, 32 output LEDs and one
termination resistor LED. Each LED indicator has a label
expressing its function. Note that the Communication
Run LED and the Error LED indicate the quality of the
communication. When FRnet is running normally, the
Communication Run LED will flash at a rate about 1Hz.
The Error LED will be lit if communication error is
happened.
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