Serial remote (rs232) – EMM Labs DAC2X AUDIO CONVERTER User Manual

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Appendix A - Serial Remote Control (RS232)

DAC2X AUDIO CONVERTER OWNER’S MANUAL

Serial Remote Control (RS232)

The 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 flow 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 . Repeating a will repeat the last command sent. Received

commands are not stored in a stack. They 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