Wideband Tests
110
AXS-200/635
Spectral Detective Test
Spectral Detective Test
The wideband spectral detective test allows you to bridge onto a live circuit
to measure the PSD noise of the line. The spectral detective test measures
up to 2.2 MHz (optionally up to 30 MHz with VDSL2WB option) so you can
determine the xDSL technology that is being transmitted over the line, and
the power associated with the transmitted technology to ensure it is not
disruptive to adjacent cables and technologies.
Test Setup
The
Test Setup
tab allows you to configure parameters for the wideband
spectral detective test.
Each parameter on the pane is
described below.
³
Bandwidth
specifies the frequency
range for the test. Select
2.2 MHz
,
12 MHz
,
17 MHz
, or
30 MHz
.
Note:
Frequency bands in excess of 2.2 MHz
are only displayed if VDSL2WB is
enabled in the software options.
³
Noise Filter
defines the level of wideband noise filtering. The available
choices are:
NONE
,
50 kbit
,
ISDN-E
,
HDSL-F
,
ADSL-G
,
ADSL
,
ADSL2+
,
VDSL
,
VDSL2-8
,
VDSL2-12
,
VDSL2-17
, or
VDSL2-30
.
Note:
VDSL2-x filters are only available if VDSL2WB is enabled in the software
options.
³
Termination Impedance
defines the resistive impedance of the
dummy load connected to the line. Select one of the following:
100
or
135 Ohm
.
