ZyXEL VES1724-56B2 User Guide - Page 118

VDSL G.INP Setup

Page 118 highlights

Chapter 9 VDSL Setup 9.3.8 VDSL G.INP Setup Click the Modify link in the VDSL Channel Profile Setup screen to open the screen shown below. Use this screen to modify the G.INP settings. Figure 62 VDSL Channel Profile Setup > G.INP The following table describes the labels in this screen. Table 41 VDSL Channel Profile Setup > G.INP LABEL DownStream Upstream G.INP Mode Effective Throughput Net Data Rate(NDR) Shine Ratio LEFTR Threshold Max Delay Min Delay Min INP DESCRIPTION The parameters in this column relate to downstream transmissions. The parameters in this column relate to upstream transmissions. Select G.INP retransmission mode. Forbidden: G.INP is disabled on the Switch. Preferred: G.INP is enabled if the far-end (CPE device) supports it. Forced: The VDSL connection can be established only if the far-end supports G.INP mode. Test: G.INP is enabled only in test mode. Specify the maximum and minimum value allowed for the ETR (Effective Throughput Rate). Specify the maximum downstream/upstream net data rate. Specifies the loss of data rate you predict to occur within 1 second due to SHINEs (Single high impulse noise events). The valid values are all multiples of 0.001 and between 0 and 0.1. Specify the lower rate limit (fraction of NDR). A Low Error Free Rate (LEFTR) defect is declared when the rate falls below the threshold. Specify the maximum delay (from 1 to 63 in ms) that is added to the retransmission delay caused by retransmissions. Specify the minimum delay (from 0 to 63 in ms) that is added to the retransmission delay caused by retransmissions. Specify the minimum level of impulse noise (burst) protection. 118 VES1724-56 User's Guide

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Chapter 9 VDSL Setup
VES1724-56 User’s Guide
118
9.3.8
VDSL G.INP Setup
Click the
Modify
link in the
VDSL Channel Profile Setup
screen to open the screen shown below.
Use this screen to modify the G.INP settings.
Figure 62
VDSL Channel Profile Setup > G.INP
The following table describes the labels in this screen.
Table 41
VDSL Channel Profile Setup > G.INP
LABEL
DESCRIPTION
DownStream
The parameters in this column relate to downstream transmissions.
Upstream
The parameters in this column relate to upstream transmissions.
G.INP Mode
Select G.INP retransmission mode.
Forbidden
: G.INP is disabled on the Switch.
Preferred
: G.INP is enabled if the far-end (CPE device) supports it.
Forced
: The VDSL connection can be established only if the far-end supports G.INP mode.
Test
: G.INP is enabled only in test mode.
Effective
Throughput
Specify the maximum and minimum value allowed for the ETR (Effective Throughput
Rate).
Net Data
Rate(NDR)
Specify the maximum downstream/upstream net data rate.
Shine Ratio
Specifies the loss of data rate you predict to occur within 1 second due to SHINEs (Single
high impulse noise events).
The valid values are all multiples of 0.001 and between 0 and 0.1.
LEFTR Threshold
Specify the lower rate limit (fraction of NDR). A Low Error Free Rate (LEFTR) defect is
declared when the rate falls below the threshold.
Max Delay
Specify the maximum delay (from 1 to 63 in ms) that is added to the retransmission delay
caused by retransmissions.
Min Delay
Specify the minimum delay (from 0 to 63 in ms) that is added to the retransmission delay
caused by retransmissions.
Min INP
Specify the minimum level of impulse noise (burst) protection.