POE max distance

[Fr0sT]

Does anyone know how long the POE cable can be on a POE 15V South African Version to a Mikrotik 433 Routerboard without too much of a voltage drop?

 

[Gambit]

You will probably get an answer quick on the mikrotik forums.

 

[TheMightyP]

I run 80m of ethernet to an RB433 - but my poe has 18v going into it.

 

[Fr0sT]

The min for 433 is 10v according to the product specs http://www.routerboard.com/index.php?showProduct=43.
According to this calculator http://www.netkrom.com/voltage_loss_over_cat5_calculator.html 80m on the 15V would work. Am I correct?

 

[portcullis]

Things start getting tricky after 110m.

If at all possible, use 24V. I know those UBNT all in one 15V PSUs are very appealing, but I've found you get more "kick" out of the radios if they're being powered by 24V.

 

[Fr0sT]

Hey portcullis, saving the day again for me haha.

Okay will try to get some of those 24v, but for now can i use the 15v for say 60m just to get it up and running?
Thanx again.

 

[KillerB]

i hade an 150m network cable on an nanostation with no problems...

 

[Fr0sT]

But then u need a biger psu than 15v, think i will try the 24v. i need to go about 100 - 120m

 

[KillerB]

i used the standard psu u get with the nanostation...