ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 32 show Commands
Management Switch Card User’s Guide
936
This command displays the line gain of the active ADSL line. Line gain represents the signal input
required to compensate for losses in signal strength at different frequencies.
The following table describes labels in this example.
32.3.1.3 show adsl linehlog Command
Syntax:
show adsl linehlog < slot-port >
This command displays the loop response using a logarithmic scale. These values can then be used
to estimate line characteristics such as the line make-up and length.
ras> show adsl linegain 3-1
port 3-1:
near end: (dB)
1 2 3 4 5 6 7 8 9 10
tone ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
0 : 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.87 0.81 0.77
10 : 0.64 0.87 0.72 0.87 0.74 0.58 0.60 0.58 0.63 0.64
20 : 0.72 0.83 0.88 0.61 0.68 0.79 0.59 0.71 0.83 0.84
30 : 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
40 : 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
50 : 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
60 : 0.00 0.00 0.00 0.00
Table 369
show adsl tssi Command Display
LABEL DESCRIPTION
near end/far
end
This shows the location of the line test. “near end” refers to upstream traffic, or traffic
from the CPE device. “far end” refers to downstream traffic, or traffic from the CO device.
tone
This shows the frequency in increments of 4.3125 KHz. Single digit units on the top row
are added to the units in tens on the left hand column to find the corresponding value in
the table. For example, to find the line gain value for tone band 43, locate 40 in the left
hand column and 3 in the top row. The intersection of the column 3 and row 40 gives a
line gain value of 5.
ras> show adsl linehlog 3-1
port 3-1:
near end: (dB)
1 2 3 4 5 6 7 8 9 10
tone ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
0 : -24.8 NA NA NA -69.9 -29.5 -18.6 -8.3 0.3 1.4
10 : 1.5 1.6 1.7 1.6 1.4 1.0 1.0 0.7 0.5 0.2
20 : -0.2 -0.5 -0.9 -1.2 -1.6 -1.9 -2.0 -2.2 -2.5 -3.1
30 : -6.0 -10.7 NA NA NA NA NA NA NA NA
40 : NA NA NA NA NA NA NA NA NA NA
50 : NA NA NA NA NA NA NA NA NA NA
60 : NA NA NA NA