EMM Labs DCC2 DIGITAL CONTROL CENTER - Manual (Page 15)

DCC2 User Manual
Appendix A: Serial Remote Control (RS-232)
The DCC2 is equipped with a 9-pin RS-232 connector for system remote control via a
serial cable (not provided by EMM Labs). The cable should be non-crossed for
connections between a PC and the DCC2. The parameters and settings for this link are:
• 19,200 baud
• 8 bits
• 1 stop bit
• no flow control
• no parity bit
Commands to DCC2
All commands sent to the DCC2 consist of 3 ASCII characters followed by a <CR>.
Repeating a <CR> will repeat the last command sent. This feature can be used to adjust
the volume of the DCC2 over a wide range. Received commands are not stored in a
stack and, therefore, need to be sent in intervals of at least 30ms to allow enough time for
the DCC2 to execute a command before receiving the next one.
Char 0 Char 1 Char 2 <CR> Char 0
>30ms
mut Toggles mute on / off
wbw Select wide bandwidth for digital audio playback
nbw Select narrow bandwidth for digital audio playback
pol Toggles polarity of all analog outputs inversed / normal
48k Selects 48kHz base sample frequency
44k Selects 44.1kHz base sample frequency
clk Toggles external clock selection on / off
pst Selects PCM input on ST glass connectors
tos Selects PCM input on TOSLink connector
cox Selects PCM input on coax connector
aes Selects PCM input on AES/EBU connectors
dst Selects DSD input on ST glass connectors
bnc Selects DSD input on BNC connectors
rca Selects analog input on RCA connectors
xlr Selects analog input in XLR connectors
don Turns front panel display on
dof Turns front panel display off (unit keeps operating)
pon Turns power on from standby
pof Turns DCC2 into standby operation
vup Moves volume up by 1 step (repeat only <CR> to move multiple steps)
vdn Moves volume down by 1 step (repeat only <CR> to move multiple steps)
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