Downstream & Upstream noise margin good or bad?

Pauly26

Upstream noise margin
relative capacity occupation: 11%
noise margin downstream: 46.0 db
output power upstream: 2.0 dbm
attenuation downstream: 20.0 db

Downstream noise margin
relative capacity occupation: 11%
noise margin downstream: 46.0 db
output power upstream: 2.0 dbm
attenuation downstream: 20.0 db


Can anybody tell me if this is good or bad or compare them results with there own
Many thanks
Pauly

-ADREN-

How did you get those readings?

-ADREN-

ahh i see now.

ADSL Line State: Up
ADSL Startup Attempts: 7
ADSL Modulation: DMT
Datapump Version: 3.38.2
Downstream Upstream

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SNR Margin: 33.24 27.00 dB
Line Attenuation: 29.23 17.00 dB
Output Power: 19.51 11.97 dB
Errored Seconds: 0 0
Loss of Signal: 0 0
Loss of Frame: 0 0
CRC Errors: 1 0
Data Rate: 1024 128

Tazzle

Here are mine relatively.

Downstream: 2048
Upstream: 128

relative capacity occupation downstream: 33%
relative capacity occupation upstream: 20%

noise margin downstream: 13.0 dB
noise margin upstream: 23.0dB

output power downstream: 6.5 dBm
output power upstream: 0.5 dbm

attenuation downstream: 38.0 dB
attenuation downstream: 22.0 dB

(I don't have a clue how good, bad or ugly this is)

Tazzle

Found this, hope it's sheds some light.

Noise Margin (AKA Signal to Noise Margin or Signal to Noise Ratio)
Relative strength of the DSL signal to Noise ratio. 6dB is the lowest dB manufactures specify for modem to be able to synch. In some instances interleaving can help raise the noise margin to an acceptable level. The higher the number the better for this measurement.
6dB or below is bad and will experience no synch or intermittent synch problems
7dB-10dB is fair but does not leave much room for variances in conditions
11dB-20dB is good with no synch problems
20dB-28dB is excellent
29dB or above is outstanding

Line Attenuation
Measure of how much the signal has degraded between the DSLAM and the modem. Maximum signal loss recommendation is usually about 60dB. The lower the dB the better for this measurement.
20dB and below is outstanding
20dB-30dB is excellent
30dB-40dB is very good
40dB-50dB is good
50dB-60dB is poor and may experience connectivity issues
60dB or above is bad and will experience connectivity issues

Output Power
How much power modem (upstream) or DSLAM (downstream) is using. Maximum recommended is about 15dB. The lower the power the better for this measurement.

Pauly26

Cheers tazzle, going from the above info, looks like all's good

Where did you find that info on boards or?

Tazzle

google

JNive

all that was posted here :-)