To daysichain multiple AOUT_NG modules, I connected J2 of the first module to J1 of the second AOUT_NG. 
  
And as much as I understand from the Midibox_NG manual, the config for two AOUT_NGs should simply be: 
AOUT  type=AOUT_NG  cs=1  num_channels=16 (cs=1 as I use an AINSER64 at cs=0) 
  
After that, I should be able to address CVs 1-16 
  
However, the second module doesn't respond. Am I missing something? If I hook my osciloscope to J2, I do see the clock signal at pin 5 but no DOUT at pin