Re: The big red button
Bloody APC Serial Cables, yup got me to when I suddenly found someone had swapped my APC Cable (I used to keep a bag of connectors with one of each and their guides).
Thankfully for me the secondary kit which wasn't considered worthy of being powered by the UPS were still online.
Only found out after replacing the damn thing and testing stand alone. Replaced a perfectly healthy UPS because of a £2 cable.