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Noise Margins ok?

N/A

Noise Margins ok?

Can someone please tell me whether these are ok for a good ADSL connection?

Downstream
Noise Margin: 20.0db
Attenuation: 63.0db
Operating Power: 17

Upstream
Noise Margin: 11.0db
Attenuation: 31.5db
Operating Power: 9
6 REPLIES
N/A

Noise Margins ok?

No. Your attenuation is to high. I think I'm right in saying the limit at present is 55db going up to 60db shortly. If you are using an extention lead try to plug straight into the main socket instead.
Lorian
Grafter
Posts: 699
Registered: 31-07-2007

Noise Margins ok?

Quote
No. Your attenuation is to high. I think I'm right in saying the limit at present is 55db going up to 60db shortly. If you are using an extention lead try to plug straight into the main socket instead.


With equipment attached the limit is currently 59db going up to 64db, hopefully in September. (4db more than the insertion loss figures quoted).

Jc
N/A

How?

Jasper, could you let me know how you obtained the figures as it would be muchos usefull for me.
N/A

Noise Margins ok?

I'd also like to know how one obtains those statistics.
N/A

Noise Margins ok?

My modem/router is a SAR715.

To display the performance stats, TELNET to the modem and use the following command.

syntax: adsl show [rate | perf | error | defects | channel | id]

example,
> adsl show perf

Hope this helps.

Smiley
stonechat
Grafter
Posts: 110
Registered: 30-07-2007

comparison

To for comparison my figures are

Downstream :
Noise Margin : 26.0 dB
Attenuation : 55.0 dB
Output Power : 17
Upstream :
Noise Margin : 10.5 dB
Attenuation : 31.5 dB
Output Power : 9

Bob