Figure 100 Vdsl Profile; Table 63 Vdsl Profile - ZyXEL Communications MSC1000G User Manual

MSC1000G User's Guide

Figure 100 VDSL Profile

The following table describes the fields in this screen.

Table 63 VDSL Profile

LABEL
The top part of the screen is for profile configuration.
Name
Latency Mode
Upstream
Max Rate
(kbps)
Min Rate
(kbps)
Interleave
Delay (ms)
Max SNR (0.1
dB)
Min SNR (0.1
dB)
Target SNR
(0.1 dB)
166
DESCRIPTION
When editing a profile, this is the name of this profile. When adding a profile, type a
name (up to 31 characters) for the profile.
This field sets the VDSL latency mode for the ports that belong to this profile.
Select fast mode to use no interleaving and have faster transmission (a "fast
channel"). This would be suitable if you have a good line where little error
correction is necessary.
Select interleave mode to use interleave delay when transmission error correction
(Reed- Solomon) is necessary due to a less than ideal telephone line.
See Section 11.2 on page 161
The following parameters relate to upstream transmissions.
Type a maximum upstream transfer rate for this profile. Configure the maximum
upstream transfer rate to be less than the maximum downstream transfer rate.
Type the minimum upstream transfer rate for this port. Configure the minimum
upstream transfer rate to be less than the maximum upstream transfer rate.
Configure this field when you set the Latency Mode field to Interleave. Type the
number of milliseconds of interleave delay to use for upstream transfers. It is
recommended that you configure the same latency delay for both upstream and
downstream.
Type the maximum upstream signal to noise margin (measured in tenths of a
decibel).
Type the minimum upstream signal to noise margin (measured in tenths of a
decibel). Configure the minimum upstream signal to noise margin to be less than
or equal to the maximum upstream signal to noise margin.
Type the target upstream signal to noise margin (measured in tenths of a decibel).
Configure the target upstream signal to noise margin to be greater than or equal to
the minimum upstream signal to noise margin and less than or equal to the
maximum upstream signal to noise margin.
for more on interleave delay.
Chapter 11 Profile Screens