Vdsl Port Setup Advanced: The Psd Chart Parameters - ZyXEL Communications MSC1000G User Manual

Chapter 9 Subscriber Port Setup Screens
Table 103 VDSL Port Setup: Advanced: Optionmask (continued)
LABEL
Enable ADSL2
Annex L
Enable ADSL2+
Annex M
Enable US PTM
optimization
Enable DS PTM
optimization
Enable US PHYR
Enable DS PHYR
Current Option
mask is:
Apply
Cancel

9.8.6 VDSL Port Setup Advanced: The PSD Chart Parameters

Click the Custom button in the advanced VDSL Port Setup screen. Use the PSD chart
parameter section of the screen to customize the relationship between frequency and PSD level
for a PSD mask.
236
DESCRIPTION
Annex L allows transmission at a greater distance. However, it may increase interference
at lower frequencies, due to the higher power used in this range.
Annex M allows faster upload rates.
Select this to enable upstream packet transfer mode (PTM). This boosts performance by
improving the payload passthrough rate. To use this feature a CPE device which supports
this feature is required.
Select this to enable downstream packet transfer mode (PTM). This boosts performance
by improving the payload passthrough rate. To use this feature a CPE device which
supports this feature is required.
Select this feature to enable physical layer protection on upstream traffic. This feature
has the same function as INP (Impulse Noise Protection) but is more effective.
Select this feature to enable physical layer protection on downstream traffic. This feature
has the same function as INP (Impulse Noise Protection) but is more effective.
Selecting or clearing feature check boxes adjusts the current option mask displayed at the
bottom of the 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 link
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 close the screen without saving your changes.
Management Switch Card User's Guide