Contemporary Research ICW-IRC User Manual

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Contemporary Research Corporation 
 
10 
    
IR TV Controller
 
 RS-232 Commands
 
   
Command 
 
Description 
Power Off 
PO  “$A5,<dh>,<dl>,2,’P0’ ” (6 bytes) – checks sensor for true power control 
Power On 
P1  “$A5,<dh>,<dl>,2,’P1’ ” (6 bytes) – checks sensor for true power control 
Power Toggle 
PT  “$A5,<dh>,<dl>,2,’PT’ ” (6 bytes) – checks sensor for true power control 
Operating 
Parameters 
TM  “$A5,<dh>,<dl>,3,’TM’,<setting>”  (7 bytes) 
Sets up key functions in the IRC 
  bit 7 – 3 = 0 
  bit 2 – Channel up/down operation, 0=Tune Ring, 1=Send IR Keypad response 
  bit 1 – Numeric channel labels, 0=num labels off, 1=num labels on) 
  bit 0 – Alpha channel labels, 0=alpha labels off, 1=alpha labels on 
Volume 
 
VL  “$A5,<dh>,<dl>,3,’VL’,<vol level>” (7 bytes)  
Sets IRC volume level 
        0 = Mute 
 
1 – 63 = Minimum level (1) to maximum volume (63) 
Power-up 
Volume 
S5  "$A5,<dh>,<dl>,3,'S5',<volume>" (7 bytes) 
Sets volume level when IRC powers up 
     0 = restore to previous level 
1 – 63 = Set from minimum (1) to maximum level (63) 
Ts & Qs 
 
T-series channel commands select a channel and display the channel label on the TV, 
while Q-series commands don’t show the on-screen text. 
T Channel Up 
TU  “$A5,<dh>,<dl>,2,’TU’ ” (6 bytes) – Tunes to next channel up in Tune Ring 
T Channel Dwn  TD  “$A5,<dh>,<dl>,2,’TD’ ” (6 bytes) – Tunes to next channel down in Tune Ring 
Force T Channel  TC  “$A5,<dh>,<dl>,3,’TC’, <channel>” (7 bytes) – Tunes to a specific channel  
 
  124 = RGB 2 input on TV 
  125 = RGB input on TV 
 
  126 = Select IRC external A/V input (also selects TV video input) 
  127 = Select S-Video Input  
     0 =  Blank video output to TV 
  255 = Unblank TV video (restore to previous channel)   
 
Tip: Not all inputs are available on every TV make and model. 
Select T Channel  
TT  “$A5,<dh>,<dl>,2,’TT’ ” (6 bytes) – Tunes channel if included in Tune Ring 
Channel Query
 
T?  “$A5,<dh>,<dl>,2,’T?’ ” (6 bytes) – Request response for current channel 
Q Channel Up 
QU  “$A5,<dh>,<dl>,2,’QU’ ” (6 bytes) – Tunes to next channel up in Tune Ring 
Q Channel Dwn   QD  “$A5,<dh>,<dl>,2,’QD’ ” (6 bytes) – Tunes to next channel down in Tune Ring 
Force Q Chan  
QC  “$A5,<dh>,<dl>,3,’QC’, <channel>” (7 bytes) – Tunes to a specific channel 
Same special-function channels as in the T Channel Select section above  
Select Q Chan 
QT  “$A5,<dh>,<dl>,2,’TT’ ” (6 bytes) – Tunes channel if included in Tune Ring