Thread: The big question.. NTL or ADSL?
View Single Post
Old 09-06-2006, 11:57   #35
James Henry
Permanently Banned
 
James Henry's Avatar
 
Join Date: Apr 2006
Posts: 562
James Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these parts
Re: The big question.. NTL or ADSL?
Quote:
Originally Posted by FusionXN1
I didn't mean that! Why would i mean that? If I know London now has the most fibre in the world as it carries data from europe to US etc... Why would I mean 1 fibre? (that was in a news article a few months back!) Sorry for mixed signals..

What I mean is according to custom pc.. One street shares an allocated bandwidth margin. And compared to ADSL you have your own dedicated line to the exchange THEN it's 50:1 were as ntl aim for 20:1.

EDIT: Thought i would add they say:

DOCCIS1.0 is 54mb per street
DOCCIS1.1 is higher but im moving so i dont have the mag out no more can't check. Anyway not to take this off track.. would like to know if anyone has moved from bt to ntl and glad they did it?
Custom don't have a clue what they're talking about so I'd ignore them. DOCSIS 1.1 is no faster for download than DOCSIS 1.0, the only difference in raw bandwidth between them is that it requires the devices either end of the connection to support a higher bandwidth on the upload (10.24Mbit line rate per upstream instead of the 5.12Mbit required under DOCSIS1.0), whereas this is optional in DOCSIS 1.0.

The numbers they quote 'per street' are also nonsense.

As previously stated however it's per fibre node not per street, multiple streets can be combined together at the fibre node so that 27 / 38 / 51Mbit can be shared between several cabinets across several streets.

Just to make things even more complicated fibre nodes can also be 'combined' (would be more accurate to say a single downstream signal is split between nodes) so that the single 27 / 38 / 51Mbit downstream bandwidth is spread between multiple nodes and from there multiple 'streets'.

Just to make things yet more complicated you can shove multiple 27 / 38 / 51Mbit downstreams down each service control group, however in most cases it's just a single downstream.
James Henry is offline   Reply With Quote