First, let me preface my comments by saying that I fully realize that it is way too late in your design cycle to incorporate these suggestions into the next generation design.
As a flight instructor and electrical engineer who flies many old airplanes (none less than ~7000 hrs), I can tell you that the main problem that high time electronics suffer is interconnects. Vibration, time, and contact oxidation conspire to cause most of the problems that I encounter.
One way to minimize the problem is to minimize the interconnects. A serial interconnect is much better than a parallel interconnect for that reason. Dynon's use of serial interfaces is to be applauded. However, it could be much better.
I have two proposals for your consideration. These are (1) a central "buss module" with which each system module would connect, and (2) the interconnects between the individual system modules and the buss module would be over a single optical fiber (glass does not corrode over time, at least not in the aircraft environment) . Each module would only have one main communication interface, to and from he buss module. No need or desire for multiple serial interfaces on any module.
That's all. The central idea is to minimize the number of interfaces. Replace the flakey interfaces with a high reliability module. Electronics reliability is much better than dsub connections.
Hankster
As a flight instructor and electrical engineer who flies many old airplanes (none less than ~7000 hrs), I can tell you that the main problem that high time electronics suffer is interconnects. Vibration, time, and contact oxidation conspire to cause most of the problems that I encounter.
One way to minimize the problem is to minimize the interconnects. A serial interconnect is much better than a parallel interconnect for that reason. Dynon's use of serial interfaces is to be applauded. However, it could be much better.
I have two proposals for your consideration. These are (1) a central "buss module" with which each system module would connect, and (2) the interconnects between the individual system modules and the buss module would be over a single optical fiber (glass does not corrode over time, at least not in the aircraft environment) . Each module would only have one main communication interface, to and from he buss module. No need or desire for multiple serial interfaces on any module.
That's all. The central idea is to minimize the number of interfaces. Replace the flakey interfaces with a high reliability module. Electronics reliability is much better than dsub connections.
Hankster