this post was submitted on 25 Aug 2025
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Hi,

I just spent a lot of last week trying to access the console of an old datacenter switch. I made a cable from the pinout of a similar switch.

My switch is a Dell S3048-ON this was for a C9010, it turned out to be correct.

So I tried over and over to make it work, but kept getting this garbled mess, but the mess was consistent with the rythm of a booting switch, and it kind of always looked the same

With many of these, I have many spares I thought they were broken, but they were not

I checked the signals with oscilloscope they were, dirty

So I made the signals cleaner by tidying it up

But still, it is a mess of garbled text !

Here I am using the other kind of serial adapter, this one serial to ethernet

Here is two runs, still garbled

As a last ditch attempt, I remembered one my old server has a real serial port !!

And it worked !

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[โ€“] SpaceNoodle@lemmy.world 0 points 7 months ago (1 children)

Thanks yes ! I think that's what I was looking for !