Rednote Blocks

Hi, I've been learning as much as I can on computercraft lately but ran into a problem recently with Rednote blocks from minefactory reloaded. I cannot seem to find any documentation on them at all :(/> I've tried using rednet cabling hooked up to them and sending bundled cable signals to them but I cannot seem to control them at all. For example I set up a program to test cycling between 2 noteblocks with rednet cable connected with the colors purple and white:

while true do
  rs.setBundledOutput('back',colors.white)
  sleep(1)
  rs.setBundledOutput('back',colors.white)
  sleep(1)
end

Does Anyone have any experience with these?

Both lines say colors.white.

What version of ComputerCraft are you using?

Both of the function just put the white line ON.
On the second setBundledOutput, just set it to 0 instead of "colors.white"

Sorry I failed miserably when typing the code on here, my bad -_-/> The second color is actually indeed purple. What the program is doing is setting both rednote blocks off every second, if both colors were white as i mistyped it would just active the block just once. I'm on version 1.5 if that helps

In that case, I'd guess that the block wants you to turn the signal off every now and then (you can't send another pulse until the previous one's been disabled). Bear in mind that it generally takes at least a tenth of a second for any redstone signal changes to be recognised by other devices, so make sure to sleep both after activating and deactivating a signal.