Which of the ARINC standards pertains to the cabin interphone system? Is ARINC 746 the correct specification in this case?
Are the cabin interphone system and the cabin telecommunication unit considered the same system?
Could you confirm whether the part number of the TCAS computer is altered as a result of the upgrade from software version 7.0 to version 7.1?
Could you provide clarification regarding the technical and configuration differences between TCAS computer part number 7517900-10020 and part number 066-50000-2220?
What eludes me is the discrepancy in the wire-bundle numbering: in the chart, the bundle numbers consist of four characters, whereas in the Wire List tables they consist of five characters, according to the file I just dispatched by email a few moments ago.