User`s guide

6211 ADSL2+ Router User’s Guide
Tone Selection
The frequency band of ADSL is split up into 256 separate tones, each spaced 4.3125 kHz apart. With each tone
carrying separate data, the technique operates as if 256 separate modems were running in parallel. The tone range is
from 0 to 31 for upstream and from 32 to 255 for downstream.
Do not change these settings unless so directed by your ISP.
Figure 6-10 Tone Settings
64 January 2005 6211-A2-GB21-20