Joshaven
I need your advice
here is my topology
Site1 (all cables going in)
1 cable -> site1 -> (50m FTP awg 24) -> NSM2 (24v max:0.5a) -> ( 30m FTP awg 24) -> NSM2 (24v max:0.5a)
2 cable -> site1 -> (45m FTP awg 24) -> NSM2 (24v max:0.5a) -> ( 32m FTP awg 24) -> NSM2 (24v max:0.5a)
3 cable -> site1 -> (55m FTP awg 24) -> NSM2 (24v max:0.5a) -> ( 38m FTP awg 24) -> NSM2 (24v max:0.5a)
4 cable -> site1 -> (40m FTP awg 24) -> NSM2 (24v max:0.5a) -> ( 35m FTP awg 24) -> NSM2 (24v max:0.5a)
to all 4 cable (blue pair +, brown pair -) I would like to run power
my adapter is MeanWell AD-155B (24V 5A) output for the 4 cables and 27V output for batteries
Is it gona work ? Or I need to buy one more Meanwell adapter and divide the cables - > 1,2 to first adapter and 3,4 to second adapter
It works on paper based on a draw of 8watts for the radio and 2 watts for the converter I would expect 10w total per NSM2 with 2 NSM2's per cable. (I don't know that this is the power budget, it is my best guess). See attached calculation for cable 3 which has the longest reach.
Note that I am assuming that your injecting 48v of power into each cable. I didn't not sum the total of each cable, I considered them separate in terms of power injection. Furthermore I have never looked into AC power over ethernet... All of the PoE that I am aware of has been DC over ethernet. You should confirm that power being AC won't interfere with the signal in a way that DC doesn't. Also with having a combined cable length of under 100M you may be able to chain the radios using the PoE pass-through. You may want to get a power injector that can inject somewhere between 26v & 30V at the start which will drop a bit in transmission. Also Check the operating range of the radio, I believe 30V is the top of the operating range.
I'll ask the obvious questing seeing that your getting support for UBNT in a MikroTik form... why would you want to use a Ubiquity NSM2 over MikroTik? I defiantly prefer MikroTik and I have used both extensively so I feel that I can make a fair comparison. Also notice how nice the MikroTik Support people are in that they were willing to help you make a purchase decision for a competitor.
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