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The cameras in the crypt are installed and working. Not sure what brought the PoE switch back to life.
Low Power Mode
I have scripted tools to reduce power use. KPF has limited flexibility in this regard thanks to the stability needs, so all the changes are in the AO and AO Electronics area. Running kpfEnterLowPowerMode will power down the Ca HK detector and the guide camera reducing power load and heat generation in AO.
To resume normal operations, use the kpfRecoverFromLowPowerMode script.