this post was submitted on 16 Jul 2025
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Home Networking

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Hey folks, I just moved into a new apartment and not sure where to plug my cable modem and what cable to use. I think the port that I have marked in red is probably the one, since it’s the only one that’s free. But what sort of connector is that?

I am in Germany and I have a FritzBox Cable box, if that helps.

Thanks in advance :)

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[–] jol@discuss.tchncs.de 0 points 10 months ago (1 children)

Is your Fritzbox a cable modem?

[–] olebla@feddit.org 0 points 10 months ago

Fritzbox cable is a cable modem/router, yes

[–] JordanZ@lemmy.world 0 points 10 months ago (2 children)

Are you asking about the cap on the port? Just unscrew it and hook up the modem.

[–] sainiabx@lemmy.ml 0 points 10 months ago

Damn, don’t realise it was just a cap. I think it was a different port. Yes the modem came with a cable. Thank you so much !

[–] unexposedhazard@discuss.tchncs.de 0 points 10 months ago

The box should have come with the cable for that so should be pretty straightforward once the cap is removed yeah.

[–] Mataresian@lemmy.dbzer0.com 0 points 10 months ago

Could you show a picture of your fritzbox plugs?

[–] Coelacanthus@lemmy.kde.social 0 points 10 months ago (1 children)

When I see the title, I initially thought you are talking about 10BASE5 and 10BASE2 (old Coaxial Ethernet)... I just know about DOCSIS technology, but I have never used it. In my hometown, most people switched directly from ADSL to FTTH.

[–] LilB0kChoy@midwest.social 0 points 10 months ago (1 children)

Old? Must be different from MoCA?

[–] Coelacanthus@lemmy.kde.social 0 points 10 months ago

Yes. The original Ethernet use Coaxial Cable with bus topology when it was standardized at 1982. This way was used by its competitors like Token Ring as well. 10BASE5 use thicker coaxial cable so it called thick Ethernet and 10BASE2 called thin Ethernet. (5 and 2 means it can reach 500 meters and 200 meters)

And then the engineer of AT&T want to reduce cost so they found the phone line. At that time, the phone line use twisted pair line and usually have many unused pairs in the line to a office room. So they think those pair can be reused so there is almost no cost for line. Since the phone line already use star topology so they choose it as well. 1BASE5 was standardized at 1986 (so the twisted pair ethernet have lower bandwidth than coaxial ethernet at beginning) and also called StarLAN (was renamed to StarLAN 1 when StarLAN 10 was invented at 1988). And then at 1990, 10BASE-T which is based on StarLAN 10 was invented. The last is the story we all know today.