Not quite. Imagine if you had already been using a CISCO 24 port switch and it was not mounted in a standard rack where those universal brackets could be used. CISCO says we don't make that anymore and so you choose another CISCO (C9200-24T) but have not ordered one yet. You matched holes on the old unit using a CAD model but you have no idea if your mounting location will have the same hole pattern or that pattern somehow shifts the switch to interfere with something you already have. You have to make sure the new switch is backward compatible with all the systems you have built also. This is why we ask for drawing of the outside with dimensions of the mounting holes or a CAD model. Any ideas?
