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What exactly is a 'VDSL fibre connection' ?

  • 03-01-2016 3:40pm
    #1
    Usjes
    Registered Users, Registered Users 2 Posts: 326 ✭✭


    Hi,

    I recently got a letter from Vodafone telling me that my line would now support a 'VDSL fibre connection' with speeds up to 100Mbps. Does this mean that they would run fibre all the way to my house ? Or does it just mean that the edge of their fibre network is now close enough to my house that they can now deliver 100Mbps over the remaining copper connection ?
    The copper connection to my house is an ancient twisted pair which dates from at least the 1970's and probably decades earlier. Can they really pump 100Mbps over this ? What kind of distances are they assuming and equally importantly what kind of channel are they assuming. Would my ancient twisted pair be equivalent to:
    - A pair of Cat5 (I doubt it)
    - A pair of Cat3
    - Something else ?

    Is there a spec somewhere of the distance and cable type over which they will be able to achieve 100Mbps 'VDSL fibre connection' ? I'm just finding it hard to believe they can say 100Mbps is possible when they haven't even seen the state of my line from my end.

    Thanks,

    Usjes.


Comments

  • #2
    ED E
    Registered Users, Registered Users 2 Posts: 36,170 ✭✭✭✭ED E


    Its FTTC or to the cab. Search here for "efiber" all the info has already been posted.


  • #3
    mass_debater
    Closed Accounts Posts: 3,072 ✭✭✭mass_debater


    It uses your existing copper pair if it's good enough. The dropwire to the distribution point will be replaced and also the pair used to the cab/exchange will be changed if they test bad. You can get upto 100mbit from a cab (or 70mbit from a VDSL enabled exchange as there are technologies not enabled yet from exchanges). The speed varies with distance and is available up to 2000m from a cab (or 1500m from an exchange). You will need to be right next to the cab/exchange to get the full speed and the speeds fall rapidly once the distance goes over 600m


  • #4
    Dcully
    Moderators, Computer Games Moderators Posts: 14,723 Mod ✭✭✭✭Dcully


    mass_debater wrote: »
    It uses your existing copper pair if it's good enough. The dropwire to the distribution point will be replaced and also the pair used to the cab/exchange will be changed if they test bad. You can get upto 100mbit from a cab (or 70mbit from a VDSL enabled exchange as there are technologies not enabled yet from exchanges). The speed varies with distance and is available up to 2000m from a cab (or 1500m from an exchange). You will need to be right next to the cab/exchange to get the full speed and the speeds fall rapidly once the distance goes over 600m

    Im on a solid 70mb efibre over a year now only 100M from cab.
    I was told to wait for vectoring to be done to get close to 100mb, other people in the are connected to a different cab are getting 100mb.


  • #5
    ED E
    Registered Users, Registered Users 2 Posts: 36,170 ✭✭✭✭ED E


    Dcully wrote: »
    Im on a solid 70mb efibre over a year now only 100M from cab.
    I was told to wait for vectoring to be done to get close to 100mb, other people in the are connected to a different cab are getting 100mb.

    Is your cab within a short enough distance to the exchange, say less than 1KM? Vectoring carries more complications if your lines are close to direct fed ones. Theres more info in the appropriate thread.

    Also pairs of cabs (not double cabs, actual pairs of 2 copper 2 VDSL) may not be done as they need system level vectoring, haven't heard of that being done.


  • #6
    Dcully
    Moderators, Computer Games Moderators Posts: 14,723 Mod ✭✭✭✭Dcully


    ED E wrote: »
    Is your cab within a short enough distance to the exchange, say less than 1KM? Vectoring carries more complications if your lines are close to direct fed ones. Theres more info in the appropriate thread.

    Also pairs of cabs (not double cabs, actual pairs of 2 copper 2 VDSL) may not be done as they need system level vectoring, haven't heard of that being done.

    The cab is only about 500m from the exchange.


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