On Thu, Apr 27, 2023 at 9:53 AM Chuck Church <chuckchurch@gmail.com> wrote:

for a Cisco ASA1001, there aren’t rails, but rather front and back ‘ears’ you use to hit both front and back posts.


Front *and* back ears? I'm not sure what an ASA 1001 is (ASR?) but my experience with these boxes is that they have a single pair of ears which can be mounted front OR back.

The heavier / deeper 1RU devices do tend to sag alarmingly.
 

 Is there a ‘standard’ distance between front and back rails that devices usually adhere to?


If you're thinking of setting the front/back distance to accommodate a specific device, table 2 might be of some interest:
https://i.dell.com/sites/doccontent/business/solutions/engineering-docs/en/Documents/rail-rack-matrix.pdf