Sorry if I gave the wrong impression -it was just that 'a heads up' as to what I have found, a complete generalisation. BTW Dynon do not supply the connectors directly and I certainly don't mean to imply they do.
We need to be mindful of the issues that can cause some faults in our installed systems eg badly crimped terminals & pins/sockets not seated correctly etc, etc ,etc. IMO these types of issues causes more headaches for manufacturers than actual faults with their hardware. Using a DMM is not necessarily the only solution as many have found, it only can confirm continuity but not always a solid (physical) connection to a dsub connector.
As you know, I do a lot of installation work and have found all sorts of issues with connectors & switches supplied by well known companies to the EAB market - Just trying to pass on some experience I've had & make the point that just because somethings not working as expected it doesn't always mean that the hardware is faulty.
Dynon is one of the companies that I have a lot of faith in (not perfect, but none are - depends on context) because they go the extra mile to help where they can eg some of the D1000/700 units that had an issue that required shipment back to them, they offered to pay shipping costs BOTH ways for that - from my experience NON of the 'certified' manufacturers do that. While Dynon continue their excellent support & considered development of their products I will unashameadly promote them
Jake J