Close Menu
    Belgio

    Perché le case belghe (e olandesi) usano questo strano oggetto per i cavi telefonici?

    Share.
    View 14 Comments

    14 commenti

    1. iLoveSoftSkin on

      Couldn’t our ancestors just create an rj11 (phone) port instead of a weird adapter for phone cables?

      And can they be repurposed for ethernet (rj45)?

    2. DJJASPER21 on

      Because you can stack those ontop of each other.

      And mostly not since they are cat3 cables or VVT (SVV) cable and they are not suitable for Ethernet. You’d get max 10Mbps out of them if you got it to work.

    4. KostyaFedot on

      RJs are flaky, gets eventually loose. 
      This thing is matching Belgium homes, brick like build to lasts.

      Even electrical power cables are used for internet. 

    5. Thecatstoppedateboli on

      They will disappear with the copper phase-out project of proximus

    6. SolidTerre on

      Local telecom companies (RTT/Belgacom – now Proximus) set their own national standards (like the 5-pin) before the RJ11 (an American standard) was common globally. It was cheaper to use adapters than rewire every house.

      ​Now some things seem like a no-brainer, but at the time, those national plugs were robust and designed for technicians, not easy consumer plug-and-play. The RJ11 was a huge simplification later on.

      ​Old phone lines only have 2 or 4 thin wires and aren’t twisted properly. Ethernet needs 8 higher-quality, twisted wires, so you’ll can’t repurpose it.

    7. harry6466 on

      Isn’t this to filter out phone frequencies vs internet frequencies?

      I’m no expert though

    8. TheDarkgg on

      Because France and other northern countries already had their own telephone network standard before the RJ11 was standardised, and above all because the ‘T-plug’ already existed well before the RJ11 -> 1950!

      Whereas the ‘RJ11’ was only standardised in the USA from 1976 onwards!

      This is why most homes built before 2003 have this type of socket, and it is mandatory to have this adapter to use RJ11 and therefore the internet!

    9. RamBamTyfus on

      It’s just history. No one is installing these sockets anymore. The last time these plugs were useful was when ISDN still ruled, and people had more than one fixed phone in their house. It hasn’t been relevant for at least 20 years.

    10. thmoas on

      you can stack them at the other side are 5 holes that also connect so one for phone one for modem one for fax, it was easy.

    11. hmtk1976 on

      Looks like someone has visited a museum!

      These days RJ-45 is – or should be – far more common.

    12. EmbarrassedBlock1977 on

      Only in existing houses that are (idk) 20+ years old.

    Leave A Reply