Operating instructions
Radio Systems Millenium-D Livewire Console
Page 16   
GPIO Operator’s Microphone Logic     
Name  Pin  Type  Notes   
INPUTS               
ON Command  IN-1  Active Low Input  Turns channel ON
OFF Command  IN-2  Active Low Input  Turns channel OFF
TALK (to Monitor 2) Command  IN-3  Active Low Input  Activates the Element TALK to MON2 
      function and routes mic audio to the     
      Talkback bus
MUTE Command  IN-4  Active Low Input  Mutes channel outputs
TALK (to PREVIEWED SOURCE)  IN-5  Active Low Input  Activates the TALK button on
Command      every source currently in 
      preview and routes mic audio       
      to the Talkback bus
OUTPUTS               
ON Lamp  OUT-1 Open Collector to Logic  Illuminates when the channel       
    Common Return  is ON unless TALK or 
      MUTE is active
OFF Lamp  OUT-2 Open Collector to Logic  Illuminates when channel 
    Common Return  is OFF
TALK (to Monitor 2) Lamp  OUT-3 Open Collector to Logic  Illuminates when TALK TO        
    Common Return  MON2 is active
MUTE Lamp  OUT-4 Open Collector to Logic  Illuminates when MUTE 
    Common Return  is active
TALK (to PREVIEWED SOURCE)  OUT-5 Open Collector to Logic  Illuminates when TALK to Lamp
    Common Return  PREVIEWED SOURCE 
      is active
GPIO Producer’s Microphone Logic     
Name  Pin  Type  Notes   
INPUTS               
ON Command  IN-1  Active Low Input  Turns channel ON
OFF Command  IN-2  Active Low Input  Turns channel OFF
TALK (to Monitor 2) Command  IN-3  Active Low Input  Activates the Element TALK to MON2     
      function and routes mic audio 
      to the Talkback bus
MUTE Command  IN-4  Active Low Input  Mutes channel outputs
TALK (to PREVIEWED SOURCE)  IN-5  Active Low Input  Activates the TALK button on every 
Command      source currently in preview and routes 
      mic audio to the Talkback bus
OUTPUTS               
ON Lamp  OUT-1 Open Collector to Logic  Illuminates when the channel is ON 
    Common Return  unless TALK or MUTE is active
OFF Lamp  OUT-2 Open Collector to Logic  Illuminates when channel is OFF 
    Common Return
TALK (to Monitor 2) Lamp  OUT-3 Open Collector to Logic  Illuminates when TALK TO MON2 
    Common Return  is active
MUTE Lamp  OUT-4 Open Collector to Logic  Illuminates when MUTE is active 
    Common Return
TALK (to PREVIEWED SOURCE) OUT-5 Open Collector to Logic  Illuminates when TALK to PREVIEWED 
Lamp    Common Return  SOURCE is active










