ePMP 2.4 GHz Provides Reverse Polarity PoE Output

[uberdome]

It has been established that the ePMP 2.4 GHz radios accept normal polarity as well as reverse polarity PoE input:

So some ePMP non-gps client radios can do both power supply polarities ?

Folks,  Let me solve the mystery. I just checked with the harware engineers and they have confirmed that the 2.4 GHz units will support opposite (or normal) polarity as well as the Cambium/Canopy PoE (reverse polarity). The 5 GHz units will not since it was designed and went into production much earlier than the 2.4 GHz units and will support only the Cambium reverse polarity. This is only for the Non-GPS units. All GPS units still support Cambium reverse polarity as well as standard 802.3af.  …

Tonight I decided to check the PoE output on the second port on a 2.4 GHz radio. When activated, the PoE output always provides reverse polarity (even when the radio is powered with normal polarity). I tested both integrated and connectorized units.

This allows an ePMP non-gps 2.4 GHz radio to be powered by a normal polarity PoE input and provide reverse polarity PoE output to another Cambium radio.

I’ll be using this feature when reconfiguring some of my repeater sites . Hopefully others can find it helpful.

Chris

[brubble1]

I never even thought about that !  Very useful information, thanks !