CHAPTER 12
12.Line Commissioning and Maintenance
12.1.Commissioning and Maintenance of ADSL Subscriber Line
12.1.1.ADSL Technical Parameters
1.1.1.57ADSL Signal Frequency Range
ADSL splits the frequency band through the passive splitter, realizing the common transmission of voices and data on the twisted pairs, its signal frequency range is shown as follows:
Figure
Upstream Downstream
Frequency
In this case:
ADSL upstream signal frequency band:
ADSL downstream signal frequency band:
Telephone audio frequency band: 300Hz— | 3,400Hz |
ADSL uses the Discrete
Figure
Frequency
Here:
US indicates Upstream
3P@C Installation Manual
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