Zyxel IES-5112 [973/1156] 6 show vdsl lineqln command

Zyxel IES-5106 [973/1156] 6 show vdsl lineqln command
Chapter 34 show Commands
Management Switch Card User’s Guide
973
34.3.46 show vdsl lineqln Command
Syntax:
show vdsl lineqln <slot-port>
This command displays the Quiet Line Noise level on a line. This is the rms (root mean square) level
of the noise present on the line for a DMT tone when no ADSL or VDSL signals are present. It is
measured in dBm/Hz. The QLN can be used in analyzing crosstalk.
The following example shows the Quiet Noise Level on port 22 of the line VDSL line card in slot 2.
The following table describes labels in this example.
34.3.47 show vdsl linetssi Command
Syntax:
show vdsl linetssi <slot-port>
ras> show vdsl lineqln 2-22
slot-port=2-22, DSL line qln
US QLN value:
1 2 3 4 5 6 7 8
--------- ------ ------ ------ ------ ------ ------ ------ ------
0- 7: NA -121.0 -122.5 -126.5 -126.5 NA NA NA
8- 15: NA NA NA NA NA NA NA NA
16- 23: NA NA NA NA NA NA NA NA
24- 31: NA NA NA NA NA NA NA NA
32- 39: NA NA NA NA NA NA NA NA
40- 47: NA NA NA NA NA NA NA NA
48- 55: NA NA NA NA NA NA NA NA
56- 63: NA NA NA NA NA NA NA NA
64- 71: NA NA NA NA NA NA NA NA
72- 79: NA NA NA NA NA NA NA NA
80- 87: NA NA NA NA NA NA NA NA
88- 95: NA NA NA NA NA NA NA NA
96- 103: NA NA NA NA NA NA NA NA
104- 111: NA NA NA NA NA NA -129.0 -129.5
112- 119: -129.5 -129.5 -129.5 -129.5 -129.5 -129.5 -129.5 -129.5
120- 127: -130.0 -129.5 -130.0 -129.5 -129.5 -129.5 -130.5 -129.5
128- 135: -129.5 -130.0 -130.0 -130.0 -130.0 -130.0 -130.0 -130.0
136- 143: -130.0 -130.0 -130.0 -130.0 -130.5 -130.5 -130.5 -130.5
144- 151: -129.5 -130.0 -130.5 -130.5 -130.0 -131.0 NA NA
Table 392 show vdsl lineqln 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 QLN 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 QLN
value of 5.

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