I'm installing a AF-4500EE & AF-4500EF and a slave 3400. All are linked by ARINC. Dual AHRS and independent power supplies.

Does each unit require a separate pitot-static line input in case of failure of a different unit?

Does each unit require separate AOA inputs?

Seems that both the 4500 units would require the pitot-static input but I'm not sure whether the slave 3400 does since it's getting most info from the 4500's?

As to the AOA input, is it unique to one of the 4500's with info sent by ethernet link to the other units? If so, do I need to run AOA tubing to the other units? If it's not unique, then my question is similar to the pitot-static input question, AOA tubing to both 4500's and does slave 3400 also need AOA input from tubing?

Thanks in advance,
Tom Hanaway