I am trying to figure out how to do this, I appreciate the help.

First, I am trying to use a DAC707 and output to my project head box. Foobar is my software. I hooked the 707 from a port on my router into its "ctl" port. The 707 just hums and the input light does not come on. I dont think I am missing anything on the hardware side? I think I just dont know how to setup the software end of things.

Thanks for the help
chris