User's Manual

Chapter 15 DSL Setup
P-663HN-51 User’s Guide
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The following table describes the labels in this screen.
Table 47 Advanced > DSL
LABEL DESCRIPTION
Select the
modulation below
Select the port’s ADSL operational mode. Select multiple modes to let
the ZyXEL Device and the DSLAM automatically determine the mode
to use.
AnnexL (reach extended ADSL2) is an ADSL2+ mode that allows
increased connection distances.
AnnexM (double upstream mode) is an ADSL2+ mode that has the
upstream connection use tones 6 to 63. The DSLAM’s port must also
be set to use Annex M or the DSL2 port will not link up.
Bitswap Enable Enable bit-swapping to allow the ZyXEL Device to adapt to line
changes. It is recommended that you leave this enabled.
SRA Enable Enable Seamless Rate Adaptation (SRA) to have the ZyXEL Device
automatically adjust the connection’s data rate according to line
conditions without interrupting service.
Single Line
Enable
Select this if you are using only one DSL line. This has the ZyXEL
Device disable DSL1 and only use DSL2.
Save/Reboot Click this button to save the changes and have the ZyXEL Device
restart and use them.