Power off the camera (NOTE: to do this I believe you have unplug the power supply, since the power supply just has a rocker switch which I think selects between standard-cooling/deep-cooling?). The only LED that gives any indication of power is a green one inside the power supply, visible only if you put your eye somewhere near the deep-cooling ("||") side of the rocker switch at a specific angle.
Power off the camera side of the extender
Unplug the server-side extender USB cable from daq-rix-andor-01. The DIR andor extender has the black USB cable (top USB port) and the VLS andor extender is the silver cable (bottom USB port).
Re-plug the server-side extender USB cable into daq-rix-andor-01.
Power on the camera side of the extender. You should see the link led turn on on the extender, and the host led blink slowly.
Power on the camera. The host led on the camera side extender show turn on solid now, and the activity led should blink intermittently.
Restart the IOC (the existing IOC process my be locked up and may need to be kill -9 to die) or alternatively just reboot daq-rix-andor-01.

Remote Power Cycling of Cameras

As of Nov. 17, 2023 rix now has a control panel to remotely power cycle andor cameras:

Image Added

Debugging

You can see log files for the IOC here: /cds/data/iocData/ioc-rix-dir-andor/iocInfo/.

...