The screen contains the following details:

Setting

Description

 

 

Direction

Select the target direction of downstream or upstream.

 

 

Target SNRM

Set the required SNR Margin×10(50=5dB), by default is

 

6dB.

 

 

z

z

Click “CANCEL” to exit from this page without saving the changes.

Click “APPLY” at any time during configure to save the information that you have been entered.

4.1.3 Profile Configuration

VDSL2 was developed and standardized in record time to address the shortcomings of existing access technologies. It servers as the ideal xDSL technology for eliminating last-mile bottlenecks and enable global mass deployment of advance Triple Play services.

Unlike its predecessor, which allowed choosing either DMT (Discrete Multitone) or QAM (Quadrature Amplitude Modulation) technology, VDSL2 only uses the DMT line code.

DMT is a method of separating a DSL signal so that the usable frequency range is separated into multiple small frequency bands, or tone. It uses up to 4096 tones which are spaced 4 kHz or 8 kHz apart. Each tone can be used for either downstream or upstream.

However VC-200M/VC-200S provide 10 VDSL2 profiles: 8a, 8b, 12a, 12b, and 17a

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