When I opened the package I was very disappointed. After thorough search, there is no guide at all. Then the equipment box looked as if it had been opened and resealed with tape. The plate then no longer matched the drill holes in the rack, and there were also not enough screws long enough to fasten the plate. I had to use this image to make sure I didn't miss anything. To use these I had to drill a new hole in the panel, go to a hardware store and buy long enough screws. It was faster than returns and I needed it for a project. I buy a lot of devices. This was my least favorite purchase.
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