Mikrotik RBMETALG-52SHPacn routers were installed on trucks at the mine, and some of them are burning out after a few hours, days, or months. Is it known whether they can function at high altitudes or in extreme environments?
Specs say that devices are suppised to work up to 70°C environnent temperature ... which excludes exposure to direct sun ... in mobile environment one has to avoid hot air passages.
Specs also say powering from 10V to 30V. Anything outside this can cause damage and getting outside this range is likely in mobile applications (dips lower than 10V in 12V environments when cranking engine or spikes above 30V in 24V environment where alternators are tuned for 28V or even slightly more).
Also, on an automotive application, it has to be seen if there are issues (vibrations) with the N antenna connnector (and this may also depend on the type of antenna mounted on it).
Are your devices burning on the "final" radio side or on the "input" power side?
I have all the metal ones mounted in the sun (it makes no sense to mount them indoors),
now here in central Italy we have sunny ones in the summer,
and one has never burned out due to overheating...
Link to second post
More details