The mUPS Smart PoE Injector from MikroTik is a smart PoE injector with a 12V battery connector. This unit is a simple and compact device to make your network more reliable or for situations where stable power input is not available, like solar or automotive installations. It works just like a Gigabit PoE injector, but when power is lost, it switches over to the 12V battery. Even if your power source is 28V, the connected RouterBOARD will not reboot when the power source is lost, it will switch over to the 12V battery transparently.
The LEDs indicate DC line or battery usage, charging and low battery level (<50%). In RouterOS, it is possible to detect when running on battery power by monitoring the input voltage with scripting since the voltage will change without a RouterOS reboot.
Note: 12V battery not included and must be mounted separately.