Technical Discussion
  >> Technical Issues


Register (or login) on our website and you will not see this ad.


  Print Thread
Standard User giggsy1977
(regular) Sat 04-Aug-18 18:08:05
Print Post

Is this old CW1308 cable?


[link to this post]
 
The incoming line I have is 4 cores which are blue, brown, green and orange. From stripping it back it doesn't look particularly twisted either. Should I be asking for the cable to be upgraded? Would it make a difference? Many thanks.

BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up...crazy Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up
Standard User Zarjaz
(eat-sleep-adslguide) Sun 05-Aug-18 07:17:02
Print Post

Re: Is this old CW1308 cable?


[re: giggsy1977] [link to this post]
 
Most �BT� cable doesn�t have an especially high twist on the pairs.

What problem are you looking to solve ? If it�s just an increase in sync rate, then highly unlikely that replacing a couple of metres of internal two pair with cat5 is going to make much difference.

Standard User giggsy1977
(regular) Sun 05-Aug-18 07:30:26
Print Post

Re: Is this old CW1308 cable?


[re: Zarjaz] [link to this post]
 
Hi Zarjaz - thanks for your reply. Having swapped filters and other cables over the last few weeks I have seen my noise margin go up over 2db (now at 9.6db) and my attenuation drop slightly (now at 19.3db) so I was wondering if changing the cable would further benefit my stats with a view to getting the maximum speed my line would support when I upgrade to a faster fibre package. Thanks.

P.S. I originally had the blue core connected to slot A in the master socket and the orange core to slot B. Swapping them over raised my snr a touch. Does it matter which way round they are connected?

BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up...crazy Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up

Edited by giggsy1977 (Sun 05-Aug-18 07:41:08)


Register (or login) on our website and you will not see this ad.

Standard User Zarjaz
(eat-sleep-adslguide) Sun 05-Aug-18 12:13:45
Print Post

Re: Is this old CW1308 cable?


[re: giggsy1977] [link to this post]
 
That's the thing, if you are not achieving a max sync rate for the product, and that the service is not capped in some way, every retrain will provide a marginally different set of stats ..... dropping sync too frequently may have the undesired side affect of remote monitoring perceiving it as a fault and your service being capped.
I originally had the blue core connected to slot A in the master socket and the orange core to slot B. Swapping them over raised my snr a touch. Does it matter which way round they are connected?
Nope.

Standard User giggsy1977
(regular) Sun 05-Aug-18 18:11:19
Print Post

Re: Is this old CW1308 cable?


[re: Zarjaz] [link to this post]
 
Thanks for taking the time to respond Zarjaz, much appreciated.

BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up...crazy Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up
Standard User j0hn83
(experienced) Mon 06-Aug-18 00:01:16
Print Post

Re: Is this old CW1308 cable?


[re: giggsy1977] [link to this post]
 
In reply to a post by giggsy1977:
The incoming line I have is 4 cores which are blue, brown, green and orange. From stripping it back it doesn't look particularly twisted either. Should I be asking for the cable to be upgraded? Would it make a difference? Many thanks.


They won't replace it. It's simply the older colours. It wouldn't improve your sync either.
Standard User giggsy1977
(regular) Mon 06-Aug-18 07:06:23
Print Post

Re: Is this old CW1308 cable?


[re: j0hn83] [link to this post]
 
Thanks for the input John - appreciated.

BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up...crazy Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up
Standard User Zarjaz
(eat-sleep-adslguide) Mon 06-Aug-18 08:49:11
Print Post

Re: Is this old CW1308 cable?


[re: j0hn83] [link to this post]
 
May not even be that old John, internal two pair has had those colours for going on ten years I�d guess.

  Print Thread

Jump to