I2c, 3.5mm jacks and protection

I’m working on a thing™ and i want to have a couple of i2c connectors using 3.5mm jacks, how should i protect the micro controller from ±12v if someone accidentally connects some random CV into those jacks? (there will be cv i/o close by, so it would be an easy mistake to make)

i have looked at this chip: https://www.ti.com/product/P82B96
as it seems like i would make the i2c bus +15v tolerant? and also buffer it, which would mean longer cables would be less of a problem?

As i’m writing this i got the idea to look at the 16n schematic, which has (what looks like) protection diodes, is this enough?
image

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