3 point PtP link

RouterOS Wireless Networking
1

I need to do a 3 point PtP link using mikrotik A->B->C

A to B will be VERY short <1000’ and will use 5.2ghz. B->C will be
about 13 miles using 5.8 Ghz. LOS should be excellent with no
obstructions for both links.

This will start as a half-duplex link and be moved up to a full-duplex
if things work out. Also, I would love to move as much traffic as
possible 50mbps would be great 20-30 would be the minimum. This will
start out as a nstreme link and then to a nstreme2 link.

My plan was a rb532 or itx solution at point A using CM9 or equivalent
cards. Site B would need to be an ITX board using CM9 and SR5 or
equivalent cards. Site C would be a rb532 or ITX using SR5 or
equivalent cards.

First phase A & C will have 1 card each and B with have 2 cards. After
the upgrade A & C will have 2 cards and B will need 4 cards.

Questions are

  1. Are there harden ITX systems that can handle 4 mini-pci cards with
    enough horse power to push over 200mbps (50 per card).

  2. Will 4 cards running full power be too much wattage for the board?

  3. Will 2 SR5 cards run OK in a RB532?

  4. Will a RB532 be able to handle all that bandwidth in full duplex
    mode?

  5. Solution needs to be able to handle the environment high
    heat/sun/lightning.

2

We are also looking to due the same thing. I’ve been lookin at DFI’s pentium mobile itx board, but haven’t found anywhere to buy them as of yet. Let me know what you find out.

3

I’m close to giving up :frowning: I’m checking into just going with a alvarion link for the 13 mile shot and maybe using some type of PC solution for the short shot. The short shot, I can put the radio’s inside the buildings and just eat the cable loss. Still have not found anything I would trust hanging out on a tower.

4

dlisman - I have decided to give the LV-675 board a try.

http://www.commell.com.tw/Product/SBC/LV-675.HTM

I’ll let you know how it turns out.

5

You may find some answers from http://www.cablefree.co.uk/ (I hope MT don’t mind me posting this)

A MikroTik solution will give you great flexibility but I think that the RB532 will not give you enough “horse power” to push 200mbps through put.

Why would you need SR5 cards for such short links? it would be better to use less power and higher gain antennas - this always produces better results and doesn’t pollute the radio spectrum so much.