On 11/9/21 12:15 PM, Matt Huszagh wrote:
Another question: is there a rule of thumb for when a module requires
support rails in addition to the flange or ear mounts?
There's no real rule of thumb. Some people insist that cantilevered mount via ears alone is never safe, but a lifetime of seeing equipment mounted that way, and having a lab full of some and a computer museum full of more, much of it factory, I say that's BS. "Use judgment".
It also pays to check the documentation, sometimes mounting requirements are covered.
If it's relevant,
this would be for a NavePoint 42U rack:
That looks nice. But you're in the USA in 2021: Companies are going tits-up left and right, and datacenters are being decommissioned and consolidated everywhere. With a little patience and smart snooping you should have no trouble at all finding a good solid rack for free, or very cheap, unless you're really out in the sticks. (which is a separate problem, with a separate solution)
In particular, keep an eye on local GovDeals listings, in particular university surplus if you're near a decent-sized university.
-Dave
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Dave McGuire, AK4HZ
New Kensington, PA
Dave McGuire