@ Mr. John Smith - The Datamate connectors are specifically designed for and have been tested in high vibration environments. The whole DB connector family has been around for a long time and has proven to be a very reliable connector in a wide range of applications The crimp style that I use (and recommend) is also available in a full Mil-Spec version (just in case you have a bucket load of cash laying around) and I’m guessing the Mil-Spec version has been tested to some level of shock and vib. The good news is that I don’t think there is any significant functional or performance difference between a high quality, reasonably affordable DB connector and the full Mil-Spec versions.
Can you describe your environmental conditions, particularly shock and vibration?