RS232 Protocol

3
Signal Sense Mode
RKB V02 units with Main Software V2.43 and later have added a Signal Sense
feature. When in Signal Sense mode RS232 Power On/Off and Channel On/Off
commands are disabled. The return feedback to the get_current_power! and
get_channel_status! is also modified when in this mode.
Analog/Digital Input Selection Mode (RKB-D850/D8100 only)
RKB-D850 and RKB-D8100 units with Main Software V2.45 and later have added
an input selection mode feature. The default mode is Auto, which will select the Optical
input if a digital signal is present. If no digital signal is present, it will then revert to the
Analog input. The source input can be changed to always monitor either analog or
digital via new RS232 commands.
Section 1: Control Command List
RKB-850 ASCII Command Description Unit Response
POWER & VOLUME COMMANDS
power_on! Power On power=on!
power_off! Power Off power=standby!
power_toggle! Power Toggle power=on/standby!
channel_on! Turn Specific Channel On 0A:ch_power=on!
channel_off! Turn Specific Channel Off 0A:ch_power=off!
volume_up! Volume Up
0A:volume_l_=##!
0A:volume_r_=##!
volume_down! Volume Down
0A:volume_l_=##!
0A:volume_r_=##!
volume_n! Set Volume to level n (n = 1 - 96)
0A:volume_l_=##!
0A:volume_r_=##!
volume_l_up! Left Channel Volume Up 0A:volume_l_=##!
volume_r_up! Right Channel Volume Up 0A:volume_r_=##!
volume_l_down! Left Channel Volume Down 0A:volume_l_=##!
volume_r_down! Right Channel Volume Down 0A:volume_r_=##!
volume_l_n!
Set Left Channel Volume
to level n (n = 1 - 96)
0A:volume_l_=##!
volume_r_n!
Set Right Channel Volume
to level n (n = 1 - 96)
0A:volume_r_=##!
mute! Mute Toggle 0A:mute=on/off!
mute_on! Mute On 0A:mute=on!
mute_off! Mute Off 0A:mute=off!
BALANCE CONTROL COMMANDS
balance_right! Balance Right 0A:balance=000/L##/R##!
balance_left! Balance Left 0A:balance=000/L##/R##!
balance_L15! Set Balance to Max Left 0A:balance=L15!
balance_000! Set Balance to 0 0A:balance=000!
balance_R15! Set Balance to Max Right 0A:balance=R15!