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Contemporary Research Corporation
10
ICW-STA
RS-232 Commands
Command
Description
Power Off
P0
“$A5,<dh>,<dl>,2,’P0’ ” (6 bytes) Mutes all A/V
Power On
P1
“$A5,<dh>,<dl>,2,’P1’ ” (6 bytes) Unmutes all A/V
Power Toggle
PT
“$A5,<dh>,<dl>,2,’PT’ ” (6 bytes) Toggles Mute A/V on/off
Operating
Parameters
TM
“$A5,<dh>,<dl>,3,’TM’,<setting>” (7 bytes)
Sets up key functions in the STA
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
“$A5,<dh>,<dl>,3,’VL’,<vol level>” (7 bytes)
Sets volume level
0 = Mute
1 – 63 = Minimum level (1) to maximum volume (63)
Power-up
Volume
S5
"$A5,<dh>,<dl>,3,'S5',<volume>" (7 bytes)
Sets volume level when STA powers up
0 = restore to previous level
1 – 63 = Set from minimum (1) to maximum level (63)
Marquee Chan
T2
“$A5,<dh>,<dl>,3,’T2’<channel> ” (7 bytes) – Sets default power-up channel
Sets default channel selected when unit powers up
Mono/Stereo S0
“$A5,<dh>,<dl>,3,’S0’, <mode>” (7 bytes) 0=mono, 1=stereo
Bass Gain
S7
“$A5,<dh>,<dl>,3,’S7’, <mode>” (7 bytes) Sets bass gain, see chart on page 8
Treble Gain
S9
“$A5,<dh>,<dl>,3,’S9’, <mode>” (7 bytes) Sets treble gain, see chart on page 8
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
“$A5,<dh>,<dl>,3,’TC’, <channel>” (7 bytes) – Tunes to a specific channel
124 = RGB 2 input on TV
125 = RGB input on TV
126 = Select STA external A/V input (also selects TV video input)
127 = Select S-Video Input
0 = Blank video output to TV
255 = Unblank TV video (restore to previous channel)
Tip:
Not all inputs are available on every TV make and model.
Select T Channel
TT
“$A5,<dh>,<dl>,2,’TT’ <channel>” (7 bytes) – Tunes channel if included in TR
Channel ?
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,’QT’,<channel>” (7 bytes) – Tunes channel if included in TR