We got standard 19-inch server racks and have the requirement to rack KVMs on the top U level.
A common issue we got is that due to the build of the server rack (little "roof" on the top) when you pull the KVM out of the rack and open the screen, it is unable to open to the maximum (it's at about 80 degrees)
To better understand I made this awesome picture:
Black: server rack viewed from the side
Red: KVM rails
Blue: KVM
BLUE/GREEN: KVM screen
As you can see you can't fully expand the screen, you kinda have to duck down to see the image on the screen properly.
We can't change the server rack, and we prefer not to order KVM with custom made rails for reasons that are too long to explain here. I am wondering if there's a way to use a 3rd party device that will act like a rail extension and will allow us to pull the KVM even further.
Many thanks for your advice!!
Toast
How about physically mounting the KVM further along on their actual fitted rails - you'd have to drill at least four new holes for the screws to go through and there's a chance you might not be able to close the front door but it would allow you to open it up a little extra?
Is that little extension of the top of the rack structural? Grab a jigsaw, stick in a metal-cutting blade and slice it off. :)
More seriously, if it's a short enough rack that you need the screen tipped up (>90 degrees), why not just mount the KVM in the rack and put a little LCD monitor and keyboard on top of the rack.
Ghetto solution: Get a sheet metal punch, or some hardcore tin snips or a CNC laser if you can get fancy (and maneuver the rack into the CNC machine... it owuld have to be a very unusual one I admit) and cut the annoying lip off. You can file it down and put some pretty plastic edging on it to make it look nicer.
Well it's obvious that whomever mandated the requirement that the KVM be mounted in the top U is a pointy haired boss. It seems to me that aside from all the wonderfully creative and fine engineering examples posted as answers, that changing the requirement as to the KVM's mounting position is the easiest solution.