User's Manual
C287 REFERENCE MANUAL 
12 
3 
3.3 LED INDICATOR 
The C827 has one multi-color LED indicating power on and activity on the serial port. Table 
3-2 shows the LED activity and meaning. 
Table 3-2: C827 LED indicator 
LED Action   C827 state  
Blue  Device on and ready – idle 
Flashing Green  TX on serial port 
Red  RF activity  
Flashing Red  Error 
Yellow  Blink burst for Subnet16 slave 
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