Noise Tests
Copper and G.fast/VDSL2/ADSL2+ Multi-play Test Set
189
WB PSD Noise
Select Masks
The
Select Masks
tab allows you to set parameters
and choose which
Masks
to enable for the
PSD
test.
Select Files
is either
None
which removes all
check marks allowing you to select one or more
Masks
, or
All
.
DPBO
(Downstream Power Back Off) is either
ON
or
OFF
.
ESEL
(Exchange Side Electrical Length) is used to
enter or modify the numerical values of
attenuation of the cable at 1 MHz frequency from
0 to 120 dB with one decimal point. This
represents the DPBOESEL variable or electrical length of exchange to
cabinet cable, and is applied to the DPBO mask calculation.
Note:
DPBO
and
ESEL
are only available if
Termination
is set to
Bridging
or
Hi-Z Cable
.
Masks
lists all the networks available to select dependent on the
ITU
or
ANSI Standard
mode set in
Setup
/
Application Settings
/
Standard
.
To set parameters and enable the Masks for the PSD test:
1.
Press the up/down arrow keys to highlight the desired parameter.
2.
Press the left/right arrow keys to view and select the options.
OR
3.
Press
on a value to open a list box of options or the alphanumeric
editor screen and use the navigation keys to scroll through.
4.
Press
to confirm the value.
5.
If
None
is selected for the files, press the down arrow key to highlight
the list box of
Masks
and press
to open the list.
Содержание MAX-635G
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