Vdsl2 Line Profile Setup > Dpbo - ZyXEL Communications MSC1024G Series User Manual

Chapter 13 Profile Screens
The following table describes the labels in this screen.
Table 147 Profile > VDSL2 > LineProfile > MIB PSD Mask
LABEL
MIB PSD Mask
Preview
DownStream
UpStream
Break Point
Tone Index
Frequency (kHz)
PSD Level (dBm/Hz) Enter 0~190 to represent 0~-95 dBm/Hz in steps of -0.5dBm/Hz to set the PSD
Modify
Apply
Cancel
13.7.4 VDSL2 Line Profile Setup > DPBO
Click the Modify link next to the DPBO field in the VDSL2 Line Profile Setup screen to
open the screen as shown next. Use this screen to configure Downstream Power Back-Off
(DPBO) settings. See
340
DESCRIPTION
This displays the PSD mask result in a graph. The MIB PSD mask is defined
only within the operating bands and lies at or below the limit PSD mask. You may
choose not to specify a MIB PSD mask for one or both transmission directions or
in specific bands of the operating bands.
Click this to display the PSD mask result in the graph you configured at the
bottom of the screen.
Configure the following settings for the MSC-to-CPEs direction.
Configure the following settings for the CPEs-to-the-MSC direction.
This index number identifies each incremental break point.
A tone is a sub-channel of VDSL band. DMT divides VDSL bands into many
4.3125 kHz tones.
Enter an increased number (than previous row) from 0 to 4096 in this field that is
also the horizontal of the MIB PSD Mask graph.
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.
level for specific tones. This sets the highest transmit PSD level permitted for
individual tones. 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 MSC and return to the previous screen.
Click Apply to save the changes in this screen to the system's volatile memory.
The system loses these changes if it is turned off or loses power, so use the
Config Save on the navigation panel and then the Save button to save your
changes to the non-volatile memory when you are done configuring.
Click Cancel to reset the fields to your previous configuration.
DPBO on page 212.
MSC1000G/1024G/1224G Series User's Guide