D-Link DSL-2320B Product Manual - Page 33
ADSL Tone Settings
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Section 8 - Advanced Setup ADSL Tone Settings The frequency band of ADSL is split into 256 separate tones, each spaced 4.3125 kHz apart. Each tone carries separate data, so the modem 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 directed by your ISP. D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual 33
33
D-Link DSL-±3±0B ADSL±+ Ethernet/USB Modem User Manual
Section 8 - Advanced Setup
ADSL Tone Settings
The frequency band of ADSL is split into ±56 separate tones, each spaced 4.31±5 kHz apart. Each tone carries separate
data, so
the modem operates as if ±56 separate modems were running in parallel. The tone range is from 0 to 31 for
upstream and from 3± to ±55 for downstream. Do not change these settings unless directed by your ISP.