Smartlink architectural control processor - no power?

Helping a friend out. They have a Smartlink ACP in a Unison DRd 120v, 12 dimmers, with one wall panel to control presets.  The Smartlink ACP suddenly appears to have no power, Thought the station power module does have one light on it for link power.

Flipped breakers, looked inside the modules, re seated everything, hit the reset button, nothing stood out, no changes.

Anyone had this problem before? Am I missing something obvious? Any thoughts?

Called tech support but they seem to be on a Monday to Friday schedule now. 

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