SSFP Mk3 faceplate faulty still
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Fibre Broadband
- :
- Re: SSFP Mk3 faceplate faulty still
SSFP Mk3 faceplate faulty still
22-04-2016 7:22 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: SSFP Mk3 faceplate faulty still
22-04-2016 9:11 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
There doesn't appear to be any problem with either of the speeds or the SNR.
The attn figure of 8.9 was reported when the speeds were at the limit of 40/2.
The higher attenuation figures were reported at pretty much the max speeds for 80/20.
Perhaps it's just calculating the attenuation differently depending on how much of the line is being used. Especially considering the difference in the upstream from 2 to 20. At 20Mb upstream, it could be using far more upstream frequencies, which means it will be using higher frequencies, and higher frequencies have greater attenuation.
Also, the DLM is always monitoring the line, there isn't really any training period.
In summary, I think there's no problem with the stats or the Mk3 plate, I'd recommend just leaving it alone.
Re: SSFP Mk3 faceplate faulty still
22-04-2016 9:18 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: SSFP Mk3 faceplate faulty still
25-04-2016 7:30 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
So what do the 80/20 stats look like with the Mk1 plate refitted, or have you decided to leave the Mk3 plate in place as the last stats look fine?
Re: SSFP Mk3 faceplate faulty still
25-04-2016 7:52 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: SSFP Mk3 faceplate faulty still
25-04-2016 8:11 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I can't see the -15dB in that last set of stats which look fine.They are in fact a tiny tiny margin better because your Upstream has 0.1dB more SNR margin. Assuming the connection hasn't dropped at any point, you will always see some changes in the SNR as the background noise varies with the general conditions. Roughly speaking you appear to be seeing an average of about 3 ES per hour which is pretty good.
Re: SSFP Mk3 faceplate faulty still
25-04-2016 8:14 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: SSFP Mk3 faceplate faulty still
25-04-2016 8:18 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
But the 26 dB SNRM was when the speed was limited to 40Mb, now that the speed is 80Mb, of course the SNRM will be lower.
Also, I'd like to re-iterate that the DLM never stops monitoring the line. It doesn't make sense to do something after the DLM has finished, because the DLM never finishes.
Re: SSFP Mk3 faceplate faulty still
25-04-2016 8:25 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
As ejs says that was on the 40/2 product, the stats will be different because there are many more tones being used on 80/20 than on 40/2. The higher frequency tones used to get the greater bandwidth get attenuated more to try and put it as simply as possible.
And as ejs has said, there is no 10 day training period on Fibre. If in the first 24hrs of a brand new line there are high errors, lots of noise etc., DLM can be especially aggressive on the 2nd day. After that as with any other DSL connection it's an ongoing thing. But on Fibre, be wary, you cannot get SNR Resets as on ADSL, and if DLM bands the speed or increases Interleaving, it's doesn't always remove them in a hurry even if conditions improve.
Re: SSFP Mk3 faceplate faulty still
25-04-2016 9:53 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: SSFP Mk3 faceplate faulty still
26-04-2016 1:21 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
It's because the attenuation is calculated over the range of tones used. I would leave the Mk3 plate in place if I were you, the primary difference between it and the Mk1, is the Mk1 has no common-mode filter.
Re: SSFP Mk3 faceplate faulty still
26-04-2016 5:58 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
The attn in the earliest stats with the Mk1 is 8.9, and the attn in the most recent stats is 9.0, which is not a significant difference. The faulty Mk3 may have increased the attenuation substantially, but then, it was faulty (and yet you still managed to get nearly the full speed despite it being faulty).
The interference filter in the Mk3, which the Mk1 does not have, may be the reason for the very slight increase in the attenuation. The overall effect of the interference filter aims to improve the broadband, by reducing the noise/interference that would otherwise affect the broadband signal.
Re: SSFP Mk3 faceplate faulty still
26-04-2016 6:03 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I think maybe there might have been a bit of confusion as a result of the 28.7dB attenuation with the faulty Mk3 plate.
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Fibre Broadband
- :
- Re: SSFP Mk3 faceplate faulty still