Sierra 200 Manual Do Utilizador

  

49 

Status indication LEDs on the Radio Control Board 

 
 

 

 

LED Functions 
Red power LED 

-  Power has been applied to the RCB board. 

Green COR LED  

- A valid carrier signal is present 

Red TX LED 

- The control system is keying the transmitter 

Yellow PL Dec LED  

- A valid PL / DPL tone has been decoded 

Yellow DTMF LED 

- A DTMF digit is being decoded 

Red User output 5 LED - The open collector output #5 is active (pulled to ground) 
Red User output 4 LED - The open collector output #4 is active (pulled to ground) 
 
Note: there is no special indication when user output #1-#3 are active. 

COR       TX 

PL Dec    DTMF Dec 

User 5     User 4 

Power