but it looks like you have to connect via serial port in order to flash the
firmware: 
// Matt
On Thu, Oct 23, 2014 at 11:21 PM, Marc Juul <juul(a)labitat.dk> wrote:
 On Thu, Oct 23, 2014 at 10:54 PM, Matthew Senate <mattsenate(a)gmail.com>
 wrote:
  hey all,
 I'd like to implement a connection to the 5ghz node sitting on top of the
 7-story building at Laney College.
 We've got some 5ghz antennas:
 
http://www.l-com.com/wireless-antenna-49-58-ghz-27-dbi-lightweight-die-cast…
 I believe we do have some 5ghz Ubiquiti Nanostations, but as far as I'm
 aware we would have to hack them to work with the directional antennas we
 have around. Sub-ideal.
 Looking for a cheap alternative, I'm thinking about buying one or two of
 these Ubiquiti Bullet5 routers:
http://www.ebay.com/itm/UbiQuiti-Bullet5-5GHz-802-11a-100mW-outdoor-wireles…
 Yes awesome, but don't buy Bullet 5, buy Bullet M5. We don't want any 
 more
of previous generation wifi ubiquiti gear, especially not the bullets
 (they can't even run our firmware).
 --
 marc/juul