I have it installed indoors, on an outside post of my network rack and I use the POE to power it. This is the POE device I bought for it (appears unavailable from Amazon now) https://smile.amazon.com/gp/product/B00B4H00EO

When I was traveling for work (every 10 weeks or less) I would just unplug the single network cable and take the LB1121 with me. I would keep the walwart in my laptop bag (along with a 25 ft cat 5).

If I didn't have a need to travel with the LB1121 I could still use POE and install it outside in one of those weatherproof enclosures which is basically how my fixed WISP has their radio setup on my antenna mast. It would simplify the antenna install.