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      Upgrade   07/22/2016

      Welcome to Version 4.  You will need to log back in with your Display Name and/or Email Address.  If you don't know this, please issue a password or account reset to obtain the details you need. Some posts will appear "broken" (links, quote text, et al).  The forum is rebuilding all content which will take some time to complete.  Once this is done, the "missing" posts should also hopefully reappear. Should you encounter problems and wish to discuss, please post here:  

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  • Topics

  • Posts

    • With regards to FTTN cabinet location: the original story was that "you can just plonk a cabinet down beside the existing pillar and cut it over!". Nobody with a clue really believed that - but since that was the story told by the vendor, the people signing the cheques believed it (or at least repeated it like they believed it). Reality seems to be that, in a typical middle-suburban "1/4 acre block, 2.3 kids, Falcadore in the driveway", you'll be looking at 1~2 FTTN cabinets to replace a single existing pillar or RIM. Maybe 3 or 4 if the density is high enough or the area is large enough. The plan is still to locate at least 1 next to the existing pillar, but realistically people are dubious about that - it depends on the size of the area covered & the pillar's location in it.   On preview: pg, a quick explanation for you: Those fat grey round posts are "pillars" - sometimes referred to as "DAs" (short for "Distribution Areas"), but that more refers to the geographical area covered by a pillar. There's 2 different sizes (actually 3, but very few people have seen the third!) - the stomach-height ones are 900 type (maximum capacity 900 pairs, but generally only provisioned to a maximum of 800 (300 main pars back to the exchange & 500 "O-side" pairs feeding the streets), while the chest-height ones at 1800 types (1800 pairs max, but again generally only provisioned up to 600 exchange / 1000 O-side pairs). So you can see the average suburban pillar is probably carrying more services than will fit in a single FTTP or FTTN cabinet. (I wont get in to things like RIMs & CMUXs - consider them an electronic pillar that basically consists of the line circuits from the telephone exchange dragged outside & stuffed in a box on the street, with fibre back to the exchange & copper out to the customer. Mostly they're on their own and take the place of a pillar, but sometimes they're associated with a pillar (if they've been put in for expansion), so there's some overlap there (and in the terms DA and "CA" (Cabinet Area)).  
    • Sorry Lonewolf, I just realised Itchyglobo is in QLD. Just to clarify, I will not consider shipping these speakers.
    • Wouldn't we all. Posters like 1080 are very technically knowledgeable but just what network issues NBNCo/Governent are dealing with and what solutions they decide are acceptable is a huge grey hole.  At the moment there are those telephone nodes dotted around everywhere already (the cylinders technicians take the top off that have a million tiny wires.) Presumably they will be replaced with a NBN node (or two). It would be interesting to know the density of those exchanges. If (as I suspect) many of the houses they service are too far away for FTTN then a decision will need to be made to cut a whole bunch of cables somewhere else and hook them into a brand new node. Regards Peter Gillespie
    • In the previous thread... (Is is just me, or is anyone else developing a love/hate relationship with this new editor?) Again, like the FTTP GPON, a standard FTTN cabinet provides 384 VDSL2 lines Remember they've not long finished the FTTN trials & planning is still a bit fluid, but it's "expected" that 60% of services will be within 400m of a FTTN node & should achieve ~100Mbps. Of course, that means a good whack are further than that but, to give some indication of what's achievable, at 500m people are getting ~90Mbps down, at 700m ~60Mbps down, and at 1500m ~15-20Mbps. (All figures from ex-colleagues working for both NBN & the Big Evil T...) That said, they've cherry-picked areas with good existing O-side/street cabling & minimal potential interference for the trials & early rollouts. What happens anywhere else is dependent on how bad the in-situ copper is before they decide to remediate/replace it, and what else is running inside it.
    • Thanks. I've responded to your post in the new thread.