Anyone reading this blog likely knows that all of the electronics in their RV reside at some point on their rig’s 12 volt electrical system. Like markers on a circular racetrack, if you follow the circuit, you’ll pass by each one in turn. Anyone who is reading this blog and has had their RV for a while also knows that when something goes wrong in the 12 volt circuit or in a device that sits on the circuit, repairs can be a painstaking and laborious process of guessing games. It kinda makes you wonder why no one has taken advantage of the fact that your 12 volt electronics are all interconnected, perhaps devising some bit of diagnostic wizardry to let you know what part of which thing is misbehaving.
Well, someone did. It’s called RC-V and it’s becoming increasingly popular in RV design. The RC-V standard allows your 12 volt devices to network or “multiplex” with each other and with a central diagnostic port. This has been a common convenience on most regular automobiles for a while now, but is only recently making its benefits known to the RV operator. Now, instead of having a repairman come check each part of the circuit and the many parts of each individual device to find malfunctions and miscalibrations, the technician can just come up to the diagnostic port, plug in their laptop, and get a specific message about what to fix.
Another helpful faculty afforded by multiplexing is the ability to program controls for various devices and activities. The diagnostic port can allow you to set timers for lights and generators, inform you of structural elements of the RV you may have forgotten to retract, or even configure an array of modes for things like “dinner time” and “movie watching.” This convenience, coupled with the streamlining that comes from having all of your options presented clearly and in one place, are set to revolutionize RV design and use.
So don’t be afraid of the RC-V standard. It is the future of RVs and it is your friend. Having your 12 volt technology cooperating and speaking the same language between each device can only make your life easier. If it starts going by “Hal” and calls you “Dave,” though, we’d suggest maybe spending the night in a motel.


