Omnia Audio Omnia.ONE - Manual (Page 25)

6
General Purpose Interface (GPI) (DB-9F)*
This DB9-female connector serves as a four-input, optoisolated interface to the Omnia's internal GPI functions. Four
of the pins are “ground-sink” inputs, one is a bias voltage input, one is a +5V power output, and the remaining three
are “ground.” The inputs can be used to dynamically alter the Omnia.ONE’s operation in response to logic
transitions on the interface connection.
Full details, including connector pinout, are covered in Appendix D, starting on
Page 147 .
DB-9M GPI “Interface” Connector
Powering Up
Now you are ready to power up the Omnia.ONE for the first time.
Connect AC power to the unit using the appropriate supplied power cable for your location.
(There is no power switch!)
When the Omnia.ONE is first powered on, audio will appear at the analog audio outputs in approximately ten
seconds. The AES/EBU and Livewire outputs also become usable at this time however full initialization of the
digital ports is not complete for several more seconds and a small audio glitch may be heard when the final sample
rate converter initialization is complete. Once the boot process is finished the following Main Menu will appear: