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4.3 Connection Requirements
C141-E230 4-11
4.3.3 Ready LED output signal
Figure 4.11 shows a recommended circuit for external LED connection to Ready LED output
signal.
Figure 4.11 Recommended external circuit for Ready LED output
Either +3.3 V or +5 V can be used for external power supply for LED (Vcc). Current limiting
resister (R) value need to be adjusted depend on the Vcc voltage. For +3.3 V Vcc voltage,
recommended resistance is 220
Ω. For +5 V Vcc voltage, recommended resistance is 330 Ω.