Edge Computing Division Users Forum

I will be connecting a Fit PC2i to an external radio system. I have a few questions...

1. The Users Manual says that P4 is 2.5mm (on page 15) which seems incorrect. Please confirm that it is 3.5mm.

2. I will be using an unbalanced mono line in. I assume that I can reference Ground and there is no bias voltage required? If so, I can use a three conductor 3.5mm plug with:
a. Audio In on TIP
b. N/C on the Ring (since I only need mono)
c. AGND on the Sleeve

3. I will also be using a mono line out, and I assume that P9 will also be a three conductor 3.5mm plug with:
a. Audio Out on TIP
b. N/C on Ring (since I/m only using mono)
c. AGND on Sleeve.

Thanks,

Josh

The 2.5mm is a typo in the reference guide. Thanks for noting that.
For wiring please consult jack pinout in SBC-FITPC2i reference guide.
For line-in you do not need bias.