@PhilipDAth you are definitely right on the cable test not working, there aren't any pairs to test in a fibre, at most there are two single fibres!
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On the switches page you can add the column Firmware Version and then you will see them all as below (usually with Name and MAC address columns that I have removed to post here:
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@amabt the length is the cable length, not the distance to the fault (if they are not the same). I've found it to be good +-10% over the years.
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