Surface-mount wall box for one keystone ethernet jack and one pair of PowerPoles, with side-mounting captive nuts

thingiverse

There's a budget-friendly way to manage power over Ethernet: harness two twisted pairs within a Cat 5 cable for power, and the remaining two pairs for half-duplex Ethernet. Check out the wiring on https://en.wikipedia.org/wiki/Power_over_Ethernet#Pinouts for details. This box provides a convenient setup with DC and Ethernet connectors side-by-side, plus captive clip nuts of a specific type that can be used to secure something to its side (e.g., camera, sensor, or other device). I use it in conjunction with http://www.thingiverse.com/thing:1644939 to mount a radiation monitor. The captive nuts are similar to those used for rack-mounting equipment to a steel 19" rack, which require a 10/32 bolt, available on https://www.amazon.com/10-32-Rack-Mounting-Steel-Carton/dp/B0012XRVYC. With the captive nut spacing at 26mm and an 8mm gap from the wall, you can design anything with matching hole spacings to mount it securely to this box's side.