pedrogarcia: Please let me know how if you work it out.  I bought one of these:

http://www.gowifi.co.nz/coming-soon-new-products/mikrotik-routerboard-rb2011ils-in-with-sfp-fibre-port.html?keyword=RB2011

And it's been gathering dust for six months cause I cant make it work on Orcon UFB.  

About a year ago I set up a http://routerboard.com/CRS226-24G-2SplusRM on Orcon UFB.
Nothing too much to it. Just created a VLAN10 on the right interface. Attach a dhcp client to the vlan10 interface, and away you go.
Then make sure you apply any firewall rules to the vlan10 interface, but not the raw interface.

Definitely worked for me. I don't think the hardware difference would be important. RouterOS is all the same.