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Appendix A - Serial Remote Control (RS232)
DAC2X AUDIO CONVERTER OWNER’S MANUAL
Serial Remote Control (RS232)
e DAC2X is equipped with a 9-pin RS232 port for system remote control via a serial cable
(not provided by EMM Labs). Please use a standard RS232 cable. Do not use a null modem
cable, as this will not work. RS232 communication port settings:
• 19,200 baud
• 8 bits
• 1 stop bit
• no ow control
• no parity bit
Commands to the DAC2X
All commands sent to the DAC2X consist of 3 ASCII characters (all lowercase) followed by a
carriage return or <CR>. Repeating a <CR> will repeat the last command sent. Received
commands are not stored in a stack. ey need to be sent in intervals of at least 50ms to
allow enough time for the DAC2X to execute a command before receiving the next one.
Command Function
pha Toggles the analog output polarity
mut Mutes the outputs
emm Selects the EMM Optilink input
aes Selects AES/EBU format PCM digital audio via XLR
coa Selects SPDIF format PCM digital audio via coax/RCA connector
to1 Selects TOSLINK format PCM digital audio via TOS1 connector
to2 Selects TOSLINK format PCM digital audio via TOS2 connector
© 2012-2014 EMM Labs Inc., All Rights Reserved. EMM Labs reserves the right to amend specifications & design without notice.
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