Ancestors

Toot

Written by LaF0rge on 2025-01-05 at 16:52

At #38C3 I received a new addidion to my #ISDN related #retronetworking collection of vintage tech: A Siemens K4301 Up0/S0 error meter: https://osmocom.org/projects/retronetworking/wiki/Siemens_K4301

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Descendants

Written by Marcus Müller on 2025-01-05 at 18:34

@LaF0rge I'm having a hard time putting a year to this: Obviously, pre-1993, due to the old post code, probably pre-1991 due to the "made in W-Germany", the English labelling says "(E)DSS1 era", i.e., post-1991?, the plastic colour makes it a "modern look" from the mid-1970s to the late 1980s, so a Siemens-modern look probably mid-1980s to late 2000s.

8P8C Bu4 puts it proooobably more on the modern side, and whatever Bu6 is.

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Written by LaF0rge on 2025-01-05 at 19:22

@funkylab I don't have a clear indication of the year yet either, sorry. Given it has TAE-8 (Bu5, used in national 1TR6 ISDN) and UAE8/8P4C (Bu4, used in EDSS1 Euro ISDN), I guess it must be at a time when both were popular. So I'd guess 1992 onwards?

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Written by winfreak on 2025-01-05 at 20:34

@CursedSilicon One more piece of gear for you to enjoy!

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Written by Cursed Silicon on 2025-01-06 at 06:15

@winfreak Ooh! I haven't (yet) started playing with ISDN

One day though!

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