Rs-232 commands – Contemporary Research ICC2-IRC User Manual
Page 10
Contemporary Research Corporation
10
IR TV Controller
RS-232 Commands
Command
Description
Power Off
PO “$A5,,2,’P0’ ” (6 bytes) – checks sensor for true power control
Power On
P1 “$A5,,2,’P1’ ” (6 bytes) – checks sensor for true power control
Power Toggle
PT “$A5,,2,’PT’ ” (6 bytes) – checks sensor for true power control
Operating
Parameters
TM “$A5,,3,’TM’,
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 “$A5,,3,’VL’,
Sets IRC volume level
0 = Mute
1 – 63 = Minimum level (1) to maximum volume (63)
Power-up
Volume
S5 "$A5,,3,'S5',
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 “$A5,,2,’TU’ ” (6 bytes) – Tunes to next channel up in Tune Ring
T Channel Dwn TD “$A5,,2,’TD’ ” (6 bytes) – Tunes to next channel down in Tune Ring
Force T Channel TC “$A5,,3,’TC’,
124 = RGB 2 input on TV
125 = RGB input on TV
126 = Select IRC external A/V input (also selects TV video input)
127 = Select S-Video Input
0 = Blank video output to TV
255 = Unblank TV video (restore to previous channel)
Tip: Not all inputs are available on every TV make and model.
Select T Channel
TT “$A5,,2,’TT’ ” (6 bytes) – Tunes channel if included in Tune Ring
Channel Query
T? “$A5,,2,’T?’ ” (6 bytes) – Request response for current channel
Q Channel Up
QU “$A5,,2,’QU’ ” (6 bytes) – Tunes to next channel up in Tune Ring
Q Channel Dwn QD “$A5,,2,’QD’ ” (6 bytes) – Tunes to next channel down in Tune Ring
Force Q Chan
QC “$A5,,3,’QC’,
Same special-function channels as in the T Channel Select section above
Select Q Chan
QT “$A5,,2,’TT’ ” (6 bytes) – Tunes channel if included in Tune Ring