AAM1212-51/53 Series User’s Guide
374
Chapter 52 ADSL Commands
The following example displays the tone diagnostics results for DSL port 8.
The following table lists the tone diagnostic parameters. See the ITU-T’s G.992.3 for more
information.
Figure 254
Tone Diagnostics Command Example
ras> ad lined toneD 1
port: 1
number_of_subcarries: 512 32
latn: 24.1 2.7
satn: 24.1 61.3
snrm: 30.2 25.0
attndr: 28008000 1248000
farEndActatp: -31.0 11.9
i log(dB) QLN(dBm) SNR(dB)
0 N/A N/A N/A
1 N/A N/A N/A
2 N/A N/A N/A
3 N/A N/A N/A
4 N/A N/A N/A
5 N/A N/A N/A
6 -21.1 -125.5 17.5
7 -15.3 -124.0 26.0
8 -9.9 -123.0 31.0
9 -5.7 -120.5 38.0
----------------------Snip------------------------
509 6.0 -124.0 29.0
510 6.0 -124.0 29.0
511 6.0 -123.0 26.5
Table 98
ToneDiag Command
LABEL
DESCRIPTION
number_of_
subcarries
Discrete Multi-Tone (DMT) modulation divides up a line’s bandwidth into sub-
carriers (sub-channels) of 4.3125 KHz each.
This number indicates how many upstream and downstream DMT sub-carriers
the DSL connection is using.
hlinScale:
The channel characteristics function is represented in linear format by a scale
factor and a complex number. This is the maximum upstream and downstream
scale factor used in producing the channel characteristics function.
latn:
This is the upstream and downstream Line Attenuation (in dB).
satn:
This is the upstream and downstream Signal Attenuation (in dB).
snrm:
This is the upstream and downstream Signal-to-Noise Ratio Margin (in dB). A
DMT sub-carrier’s SNR is the ratio between the received signal power and the
received noise power. The signal-to-noise ratio margin is the maximum that the
received noise power could increase with the AAM1212 still being able to meet
its transmission targets.
attndr:
This is the upstream and downstream Attainable Net Data Rate (in bit/s).
farEndActatp:
This is the upstream and downstream Far End Actual Aggregate Transmit
Power (in dBm)
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