ZyXEL VES1724-56B2 User Guide - Page 108

VDSL Setup, VES1724-56 User's Guide

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Chapter 9 VDSL Setup Table 34 VDSL Line Profile Setup (continued) LABEL US0 Rate Adaptive MIB PSD MASK DPBO RFI BAND Virtual Noise Add Cancel Clear Name VDSL2 Profile SNR Margin DESCRIPTION Specify whether you want the Switch to automatically activate the upstream band 0 (Allow) or not (Disable) when necessary. Select Allow to have CPE and the Switch use the upstream band 0 for upstream traffic over long distances. If you select Disable, the CPE may not able to transmit data over long distances. This field displays downstream (DS) and upstream (US) rate adaptive settings. Manual displays if the Switch fixes the transmission rate as the minimum net data rate and disables transmission rate adjustment. If the attainable speeds cannot match configured speeds, then the VDSL link may go down or link communications may be sporadic due to line errors and consequent retransmissions. AdaptInit displays if the Switch keeps the transmission rate negotiated between the Switch and CPE devices. It ranges from the configured minimum to the maximum net data rate based on the initial line condition. Dynamic displays if the Switch dynamically changes the transmission rate negotiated between the Switch and CPE devices during initialization as well as during SHOWTIME status. SOS displays if the Switch uses the emergency rate adjustment system for immediate rate adjustment to reduce crosstalk noise. Click the Modify link to take you to a screen where you can configure detailed rate adaptive settings. The MIB PSD mask allows you to further adjust PSD level for tones according to the limit PSD mask you have configured. This field displays how many break points are configured for the downstream (DS) and upstream (US) MIB PSD mask. For example,"DS:4 BP US:5 BP" displays after you have configure 4 break points for downstream and 5 break points for upstream in the MIB PSD mask. Click the Modify link to take you to a screen where you can configure the MIB PSD mask. This field displays whether DPBO is enabled or disabled in this profile. Click the Modify link to take you to a screen where you can configure detailed DPBO settings. This field displays the RFI band setting in this profile. Click the Modify link to take you to a screen where you can configure detailed RFI band settings. This field displays whether virtual noise is enabled or disabled in the downstream and upstream transmissions. Click the Modify link to take you to a screen where you can configure detailed virtual noise settings. Click Add to save the new rule to the switch. It then displays in the summary table at the bottom of the screen. Click Cancel to reset the fields to your previous configuration. Click Clear to clear the fields to the factory defaults. This field displays the descriptive name for this profile. Click a profile name in this field to edit that profile. This field displays the VDSL2 profile(s) applied to a VDSL line profile. This field displays the configured upstream and downstream signal to noise ration in decibels. 108 VES1724-56 User's Guide

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Chapter 9 VDSL Setup
VES1724-56 User’s Guide
108
US0
Specify whether you want the Switch to automatically activate the upstream band 0
(
Allow
) or not (
Disable
) when necessary. Select
Allow
to have CPE and the Switch use
the upstream band 0 for upstream traffic over long distances. If you select
Disable
, the
CPE may not able to transmit data over long distances.
Rate Adaptive
This field displays downstream (DS) and upstream (US) rate adaptive settings.
Manual
displays if the Switch fixes the transmission rate as the minimum net data rate
and disables transmission rate adjustment. If the attainable speeds cannot match
configured speeds, then the VDSL link may go down or link communications may be
sporadic due to line errors and consequent retransmissions.
AdaptInit
displays if the Switch keeps the transmission rate negotiated between the
Switch and CPE devices. It ranges from the configured minimum to the maximum net
data rate based on the initial line condition.
Dynamic
displays if the Switch dynamically changes the transmission rate negotiated
between the Switch and CPE devices during initialization as well as during SHOWTIME
status.
SOS
displays if the Switch uses the emergency rate adjustment system for immediate
rate adjustment to reduce crosstalk noise.
Click the
Modify
link to take you to a screen where you can configure detailed rate
adaptive settings.
MIB PSD MASK
The MIB PSD mask allows you to further adjust PSD level for tones according to the limit
PSD mask you have configured.
This field displays how many break points are configured for the downstream (
DS
) and
upstream (
US
) MIB PSD mask. For example,”
DS:4 BP US:5 BP
” displays after you have
configure 4 break points for downstream and 5 break points for upstream in the MIB
PSD mask.
Click the
Modify
link to take you to a screen where you can configure the MIB PSD
mask.
DPBO
This field displays whether DPBO is enabled or disabled in this profile.
Click the
Modify
link to take you to a screen where you can configure detailed DPBO
settings.
RFI BAND
This field displays the RFI band setting in this profile.
Click the
Modify
link to take you to a screen where you can configure detailed RFI band
settings.
Virtual Noise
This field displays whether virtual noise is enabled or disabled in the downstream and
upstream transmissions.
Click the
Modify
link to take you to a screen where you can configure detailed virtual
noise settings.
Add
Click
Add
to save the new rule to the switch. It then displays in the summary table at
the bottom of the screen.
Cancel
Click
Cancel
to reset the fields to your previous configuration.
Clear
Click
Clear
to clear the fields to the factory defaults.
Name
This field displays the descriptive name for this profile. Click a profile name in this field
to edit that profile.
VDSL2 Profile
This field displays the VDSL2 profile(s) applied to a VDSL line profile.
SNR Margin
This field displays the configured upstream and downstream signal to noise ration in
decibels.
Table 34
VDSL Line Profile Setup (continued)
LABEL
DESCRIPTION