We have been using the passive POE to power our devices for some time.
I’m actually really surprised at how few devices mention that it’s capable of it.
I have tested this just now on a:
BR1 HW2 -works
BR1 HW3-works
BR1 Mini -works
Transit Mini-works
MAX OnTheGo HW works (WAN5)
B20x -does not work\requires both sides and a connection to the DC jack.
(note on all devices you must connect the passive cable on the WAN port)
I’m pretty sure I also tested on a transit single, slim, and MK2 and recall it working with just the single side or a ACW-102.
I posted this alternative POE injector here:
The great thing is , if it doesn’t work with just the Female 5.5x2.1 mm side of the kit you can use both sides and connect to the male DC jack.