Edge Point ?

Products ePMP
1

Can this be used to power up epmp 1000 2.4 ghz radios? If you made a change in the cabling would this work? https://www.ubnt.com/edgemax/edgepoint/ If so what would each of the cable ends need to look like.

2

If you are using the GPS radios you can power them with this without any cabling modification so long as the voltage at the radios is no less than 24 volts.  If you are using the non-gps radios you will want to swap 4/5 and 7/8 at one end of the cable to reverse the polarity.

I seem to recall someone testing the non-sync 2.4 radios and reporting that they work with "standard" polarity too.

3

I was going to use this to power up 4 gps sync radios using a existing cable that I have on the tower. I was hoping this would work so I can put my new 4 sector epmp on the tower leaving the existing 3 120 degree sector UBNT 2.4 powered up as I change each sector over to new epmp radio. This way I can turn the ports on and off so the epmp new sctors wont interfere, Then I can change out one sector at a time. This would make the upgrade easier on my end. 

4

Hi,

Please find attached the illustration how you have to twist pairs to power up non-GPS ePMP unit. As it was mentioned you don't have to do it for GPS units.

Please remember that non-GPS units accepts 12-30V DC, and GPS power supply should be 30-55V DC.

Regards,

Dmitry

1 Like
5

I seem to remember reading in other threads that ePMP GPS unit's lower voltage theshold is around 23 - 24v leaving not much room for voltage drop on long POE runs with a source  voltage of 24v.

I was also thinking the new ubnt edgepoint switch product could work well with very short copper ethernet runs on top of the tower to GPS Sync ePMP radios.

The other solution I've been considering is two Mikrotik 260GSP ( http://routerboard.com/RB260GSP ) passive POE out switches both powered by a single Cambium ACPS81WA (30v 120W power supply) which should be enough juice for both the switches and 8 GPS ePMP 1000 radios.  I think that should still be at least 24v after 140-150ft of copper ethernet.

It will likely come down to pricing / availability on the edgepoint devices.

Any official word on which of these two solutions would work better from Cambium?  Also, is it possible to get a better idea what the ACPS81WA actually looks like?  Not many pictures to be found.

Thanks!