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Chapter 9 VDSL Setup
Table 36 VDSL MIB PSD Mask Setup (continued)
LABEL
Frequency (kHz)
PSD level (dBm/Hz)
Modify
Cancel
Clear
9.3.4 VDSL Line Profile Setup > DPBO
Click the Modify link next to the DPBO field in the VDSL Line Profile Setup screen to open the
screen as shown next. Use this screen to configure Downstream Power Back-Off (DPBO) settings.
See
DPBO
on
Figure 58 VDSL DPBO Setup
112
DESCRIPTION
This read-only field displays a frequency that equals the tone index multiple 4.3125
dBm/Hz. This field automatically calculates after a Tone Index value is entered.
Enter the PSD levels (-127.5~0 dBm/Hz) for your specified tones to restrict the transmit
PSD to levels below these. Your input value will be displayed as the Y-axis of the MIB
PSD Mask graph after you click Preview.
Click this to save the settings to the Switch and return to the previous screen.
Click Cancel to reset the fields to your previous configuration.
Click Clear to clear the fields to the factory defaults.
page
99.
VES1724-56 User's Guide
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