Edited after install.
OK. Now I see that the camera comes apart in to three pieces as well which allows me to screw the bottom of the camera in to the lid of the junction box. So --
1 - apply the install sticker template and drill holes. I did mine under the eaves, so I didn't pay attention to the up/down markers. I drilled a hole smaller than the sticker template since I only had cat6 going through the middle. I also left a pull cord if I need to get cat6 to this location again.
2 - install the rj45 plug and test. Make sure you put the weather resistant cover through the cable first on the other side of the plug (and face it the correct way)!
3 - install the bottom bracket of the box to the eaves with the ethernet cable going through the middle. Remove enough foam to fit cable through the bottom of the junction box. I just used a pocketknife and split the foam in the middle since only cat6 hanging through
4 - Put the cords attached to the camera through the rubber gasket/grommet on the cover plate of the bottom bracket. I allowed this setup (including the camera) to hang from the cover plate; maybe there is a better way but I don't know what it is and this seemed secure enough. Leave 3 inches or so of cable outside of the grommet (i.e. - you don't want it fully snug to the grommet since it needs to move some when you rotate the camera).
5 - install the weather resistant cover (came with camera; need to put on the cat6 line before installing the rj45 plug) and rj45 jack with a little dielectric grease (purchase separately; i used crc brand; HD was cheaper than Amazon)
6 - screw on the lid of the junction box. You'll need to mess with the cables to get them all in there without
crimping the cat6. be careful. they do fit.
7 - screw bottom of camera to the lid of the junction box
8 - put the "hood" of the camera on (has a little tab on one side that you just need to dip in place first) and tighten the set screw 60-80% (you still want to be able to adjust the viewing angle).
9 - position camera and view on your computer for the proper viewing angle. I had to take off the hood and adjust the cable to get the camera to adjust to where I wanted it.
Edited - got my IPC-HDW2231R-ZS installed with the PFA130-E. First camera install and cable pull. Wow. That was a lot of work. 2nd one will be much quicker after the learning curve.