Adding a 4th AC Reference - OK to use plug #12?

Support
1

I need to add a 4th AC Reference. Can I use ports like #12 or #11 and plug in a standard IotaWatt AC reference like this…

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And then just configure setting the type to “VT” like this…

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2

No, you can only connect voltage to the 5.5 mm plugs for inputs 0, 13 and 14. Connecting to any 3.5mm input will damage the unit.