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EMM Labs DAC2 AUDIO CONVERTER User Manual

Page 17

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017

Appendix A - Serial Remote Control (RS232)

© 2010 EMM Labs Inc., All Rights Reserved. EMM Labs reserves the right to amend specifications & design without notice.

DAC2 AUDIO CONVERTER OWNER’S MANUAL

Commands to the DAC2 (cont`d)

Status bytes sent from DAC2

The DAC2 sends back 4 Bytes terminated with a whenever any status changes.

Byte 0 ASCII ' 0 ' - Not Used

Byte 1 ASCII ' 0 ' - Not Used

Byte 2

bit 0 Not Used

bit 1 Not Used

bit 2 Status of EMM Link input (0 when selected)

bit 3 Status of USB input (0 when selected)

bit 4 Status of AES input (0 when selected)

bit 5 Status of Coax input (0 when selected)

bit 6 Status of TOS1 input (0 when selected)

bit 7 Status of TOS2 input (0 when selected)

Byte 3

bit 0 Lock Status, 1 when locked

bit 1 Not Used

bit 2 0 when 44.1kHz selected as base sample frequency

bit 3 0 when 48kHz selected as base sample frequency

bit 4 Status of polarity of analog outputs (0 when inverted)

Command

Function

usb

Selects USB PCM audio via USB interface