ZyXEL Communications MSC1000G User Manual page 237

Figure 145 VDSL PSD Chart Parameter
The following table describes the labels in this screen.
Table 104 VDSL PSD Chart Parameter
LABEL
Break Point
Tone Index
Frequency (kHz)
PSD Level (-
0.5dBm/Hz)
Apply
Cancel
Management Switch Card User's Guide
DESCRIPTION
This index number identifies each incremental break point. You can configure 32 break
points in total. Click the Edit 17 ~ 32 >> link to configure the 17th to 32nd settings.
The frequency range used in VDSL transmission is divided into sub-carriers or tones. Each
tone has a range of 4.3125 kHz.
Enter a value from 0 to 4096 in this field to select a tone. Each Tone Index value must be
higher than that entered in the previous row.
This read-only field displays the frequency equal to the tone index multiplied by 4.3125
dBm/Hz. This field is automatically updated based on the corresponding Tone Index value
entered.
Enter the PSD level in -0.5 dBm/Hz to map to a certain frequency.
Click Apply to save your changes back to the Device.
Click Cancel to begin configuring this screen afresh.
Chapter 9 Subscriber Port Setup Screens
237