Nokia DNT2Mi sp/mp User Manual

Page 101

Using Q1 menus

DN01145897

101 (128)

Issue 2-0 en

Nokia Proprietary and Confidential

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STU-C (6,3,3,1)

This option defines the unit as a SHDSL Termination Unit (STU) Central
office. It also sets the bit rate in the line as Fixed. STU-C determines line
rate to the value given with the menu command Give line rate
(6,3,3,1,2,1).

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STU-R (6,3,3,2)

This option defines the unit as a SHDSL Termination Unit (STU) Remote.
It also sets the bit rate in the line as Rate adaptive. If the line conditions
(attenuation/noise) allow, STU-R adapts to the line rate set on the STU-C
side.

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Two-wire (6,3,3,1,2)

In the 2-wire option, only Line 1 is enabled. Line 2 is idle. See Figure 8 for
line connector pins.

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Four-wire (6,3,3,1,4)

In the 4-wire option, both lines (Line 1 and Line 2) are enabled. See Figure
8 for line connector pins.

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PSD mask: Symmetric

Symmetric PSD mask defines the spectral shape of the signal transmitted
to the line. The symmetric PSD is in use for both 2- and 4-wire modes
(G.991.2 Annex B).