Changing Pairs

Discussion in 'Broadband' started by naza, Mar 2, 2008.

  1. naza

    naza Guest

    I am dealing with a mate of mines internet. He lives close to the
    exchange and people on the same pole as his get some good speeds but
    he gets so much lower. I understand that the route that his line takes
    could be so much different. But I was thinking of asking his ISP to
    change the pairs, but was wondering what they would actually do. Would
    they change the pairs at the pole and the exchange so t hat he was was
    running on a new pair from his house to the exchange or would they
    change something else. The first one would make sense as I believe
    that the pairs are matched to phone numbers at the exchange. Thanks
    for you help.
    naza, Mar 2, 2008
    1. Advertisements

  2. naza

    Andy Burns Guest

    It's not really up to you (or him) to ask them to do that, if there's a
    fault report it, then it's up to the ISP to arrange for it to be fixed,
    changing pairs is one option that's availble to them (or rather to

    If they decide there is a need to change pairs, they can change the pair
    from the exchange to the street cabinet, from the cabinet to the pole or
    within the dropwire from the pole to the house.
    Andy Burns, Mar 2, 2008
    1. Advertisements

  3. And they'll only do any of that if they find they really have to.
    BT/Openreach own the network and will reserve the right to fix faults in the
    way that they decide.

    George Weston, Mar 2, 2008
  4. naza

    SJP Guest

    So have you tried with ALL of his internal wiring disconnected by useing the
    test socket on the nte?
    Does his router give you any stats?
    SJP, Mar 2, 2008
  5. naza

    Andy Burns Guest

    I thought that was the point I'd made?
    Andy Burns, Mar 2, 2008
  6. naza

    kraftee Guest

    They also have to pay Openreach for upgrading the network, so the
    chance most ISPs will do it is marginal to none at all.

    If you're really that involved check all internal wiring, extensions,
    even phones or extension bells (if he has a remote external bell that
    will have to be disconnected, or a SSFP fitted for a start). You will
    be unpleasantly suprised how much internal wiring, even a flat plugin
    extension feed, can affect a DSL line...
    kraftee, Mar 2, 2008
  7. naza

    Alec Guest

    Alec, Mar 3, 2008
  8. naza

    SJP Guest

    SJP, Mar 3, 2008
  9. naza

    naza Guest

    Well I have tried internal wiring. I Simply started with plugging it
    in at the test socket at the NTE5. No change in stats. Report 57db
    downstream attenuation with a noise margin of 7-8 db depending on
    time. Internal wiring looks very good anyway. All of it is visible,
    not in walls and stuff, looks like twisted pairs and not alarm cable.
    Well out of the way of lighting most of the time and no-where near on
    electrical cables. I tested it with an AM radio to find any other EMI
    on the 1mhz frequency nothing there. The junction box for the drop
    wire is about 40cm away from the NTE5 socket and there is no sign of
    any more noise than anywhere else. Its very unlikely that the internal
    wiring is at fault in this case.

    Compare this with his tow neighbours with various ISP's, Both of
    them are 34db downstream attenuation and a noise margins ranging from
    7db - 14db. Quite good lines and they get a sync normally above
    6000kbps. Compared to a sync of 1860kbps the last time I looked at his

    As for the ISP after 4 weeks they called and said they would send out
    an engineer to look at the line. Anybodies guess if he will actually
    do something.
    naza, Mar 3, 2008
  10. naza

    SJP Guest

    The junction box that the drop wire connects to isn't a BT80aRF2 instead of
    a normal BT80a is it?
    See for examples
    SJP, Mar 3, 2008
  11. naza

    naza Guest

    Neither, its the 'British Telecom box 52A' as listed on the site.
    naza, Mar 3, 2008
  12. naza

    naza Guest

    Neither of them. Dropwire goes to a 'External Block Terminal No.18'
    then to the NTE5 Master socket.
    naza, Mar 3, 2008
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.