Acceptable Noise and Attenuation levels?

[bees]

I've got a client with ADSL problems. Line is VERY slow at times, but never completely dead. Changed router and ISP, same problem. Telkom did line tests from there side, no fault found obviously.

Here is stats off the router:

Upstream 512 kbps
Downstream 4096 kbps
Noise Margin (Upstream) 13.0 db
Noise Margin (Downstream) 19.0 db
Attenuation (Upstream) 5.0 db
Attenuation (Downstream) 13.0 db

Can anyone tell me if these starts are good / bad?

Thanks.

 

[MagicDude4Eva]

snr of 19db is not great. attenuation is good. you might possibly find that with the SNR you resync. could also be a faulty micro-filter.

Detailed SNR/attenuation description: http://www.naschenweng.info/2008/10/16/adsl-significance-of-snr-and-attenuation

 

[bees]

Thanks for the link - just what I was looking for.

Those stats seem good enough not to be a problem, different modem and ISP, but their ADSL is still useless. I dunno...

 

[TitanKing]

Guys, does this look good for 10Mb line speeds. I am having high pings (200ms - 300ms) locally and wondered if I should lower my sync..


DSP Firmware Version E.25.41.55 A
Connected true
Operational Mode G.Dmt.BisPlus
Annex Type AnnexA
Upstream 952000
Downstream 10014100
SNR Margin(Upstream) 5.5 dB
SNR Margin(Downstream) 11.35 dB
Line Attenuation(Upstream) 12.0 dB
Line Attenuation(Downstream) 29.0 dB
CRC Errors(Upstream) 0
CRC Errors(Downstream) 0
Latency(Upstream) Fast
Latency(Downstream) Fast