An option that I stumbled upon was ServerTech CDUs. I have one that's essentially the same features as the APC listed in the 2nd post, but it was ~$40. I have a CW-8H1-C20 that I'm happy with. Network monitoring, flash upgradable, aggregate power monitoring, power sequencing, individual outlet...
You need the RPM signal.
fohdeesha's reply that the 7250 will boot without RPM signals doesn't seem to work on mine. IIRC, I'm on 0.8.0.60 so maybe if I was on 80 that would be the case. On mine, it boots all the way through then issues a warning and reboots the switch.
Good timing for this part of the thread. I recently received a ICX7250. I ordered 2x Noctua A4x20-FLX. At boot, these spun up no problem, but once the system was booted, the fans would come to a stop and the system would reboot due to both failed fans. These run very quiet at 12V so just running...
First off, I'd like to thank all those traveling this road before me. Lots of useful information. Additionally, shout out to Fohdeesha for the amazing resource and help.
I wanted to add some information about getting the console to work on an ICX7250. I did not own a 'Cisco console cable', e.g...
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