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Installation Manual

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Decode LED signal
The LED (PIN 10) pin of the E3000H provides a level cue signal when decoding is successful, and is
typically used as an input control signal for externally decoded LED cues. When the decoding is successful,
the LED pin will output a high-level pulse with a duration of approximately 300ms and eventually return to a
low level. The LED signal output pin has a limited load capacity and cannot directly drive the LED. A
matching LED driver circuit is required.
Refer to the matching LED prompt drive circuit as shown below: