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The following example displays the tone diagnostics results for DSL port 8.
Figure 252 Tone Diagnostics Command Example
ras> ad lined toneD 1
port: 1
number_of_subcarries:
latn:
satn:
snrm:
attndr:
farEndActatp:
i
log(dB)
0
1
2
3
4
5
6
-21.1
7
-15.3
8
-9.9
9
-5.7
----------------------Snip------------------------
509
510
511
The following table lists the tone diagnostic parameters. See the ITU-T's G.992.3 for more
information.
Table 98 ToneDiag Command
LABEL
number_of_
subcarries
hlinScale:
latn:
satn:
snrm:
attndr:
farEndActatp:
i
IES-612-51A User's Guide
512
24.1
24.1
30.2
28008000
-31.0
QLN(dBm)
SNR(dB)
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
-125.5
17.5
-124.0
26.0
-123.0
31.0
-120.5
38.0
6.0
-124.0
29.0
6.0
-124.0
29.0
6.0
-123.0
26.5
DESCRIPTION
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.
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.
This is the upstream and downstream Line Attenuation (in dB).
This is the upstream and downstream Signal Attenuation (in dB).
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 IES-612-51A still being able to
meet its transmission targets.
This is the upstream and downstream Attainable Net Data Rate (in bit/s).
This is the upstream and downstream Far End Actual Aggregate Transmit
Power (in dBm)
This is the index number of the DMT sub-carrier.
Chapter 52 ADSL Commands
32
2.7
61.3
25.0
1248000
11.9
369
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