On Fri, Oct 29, 2010 at 9:25 PM, Blake Covarrubias <bl...@beamspeed.com> wrote: > On Oct 29, 2010, at 5:50 PM, Jon Auer wrote: > >> We prefer the RB1100 because we don't need a inverter for the switch at DC >> powered sites. > > Are you using -48VDC at these sites? What are you using to down convert to > something operable with the RB1100? >
24VDC off a AC-DC UPS module. DC output is regulated to "safe" range for MT as opposed to battery float voltage. We don't have RB1100s in production on DC sites yet, just RB450G and RB493AH because of RB1100 supply problems. What few RB1100s I have are at aggregation points where we have protected AC power for the MetroE gear. -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
