ZyXEL Communications MSC1024G Series User Manual page 327

Figure 208 ADSL Profile
The following table describes the fields in this screen.
Table 140 ADSL 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)
MSC1000G/1024G/1224G Series User's Guide
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 ADSL 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 13.2 on page 325
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).
Chapter 13 Profile Screens
for more on interleave delay.
327