6100-Gfast Multifunction Copper Tester Operation Manual
© 2020 Radiodetection Ltd
189
o
Signal Attenuation
(ADSL, G.fast) is
the current reduction of signal strength
and is measured periodically when the
line is connected.
o
Tx
/
Output Power
is the
upstream/downstream transmitting
power for the selected band.
o
KL0
displays the per band attenuation
values calculated during a Manual
VDSL2 test.
17.7 Loop Diagnostics
The
Loop Diagnostics
tab displays the
characteristics and potential problems on the line, in
graphical format. Some DSLAMs provide upstream
SNR and Hlog per tone info to the CPE during DSL
connection phase. If the SNR/Hlog/QLN info is
available, the upstream and downstream diagnostic
data is displayed using different colors which are
identified in the graph.
For VDSL2/ADSL2+,
Frequency
is shown in kHz. If
G.fast, the
Frequency
is shown in MHz. There are 4
(when in G.fast mode) separate graphs for each pair:
SNR per Tone
presents the signal-to-noise
ratio per tone.
ATTN (Hlog) per Tone
shows the attenuation
from Hlog (Channel Response) per tone.
QLN per Tone
shows the PSD noise from
quiet line noise per tone.
ALN per Tone
defines the downstream active
line noise per tone and is displayed as 2 sets of
data:
o
Recent
based on the most recent
refresh values. Press the
Loop
Diagnostics
tab to refresh the ALN
graph.
o
Peak
, which shows the maximum
values registered for each tone since
the test started; that is initial and
consequent refresh graphs.
Press
to switch between graphs.
17.8 Data Tests Summary
The
Data Tests Summary
tab displays the pass/fail
status of the selected data tests enabled in the
connection setup. A successful WAN connection must
be established in order to view the detailed results.
When
IPv6 (DHCP)
is set as the
Access Mode
in
Connection Setup
, only
Ping Test
will be displayed.
To view individual data test results:
1. Press the up/down navigation keys to select
the desired test.
2. Press
to display the test result details.