Did a quick search for "MineFactory" and "PowerCrystals" to no avail, so as far as I know this isn't a duplicate. :)/>

Title basically says it all, but for more specifics I think it'd be useful if the an API was provided to add support for MineFactory Reloaded's RedNet Cables. They're functionally equivalent to how I assume RedPower2 bundled cable will operate in their 1.5 release (16 colors of analog redstone signals). I personally think that the best way to support this would be extending the existing redstone API to support analog signal and have that API support both MFR rednet and RP2 wire/cable depending on which was connected to the specified side, but I can see logic for splitting it out separately as well if the way RP2 and MFR work differ too much to make it worth the development effort.

MineFactory Reloaded (including its API) can be found here:
http://www.minecraftforum.net/topic/1629898-151-powercrystals-mods-15-updates-are-here-rednet-cable/