Fluke 990DSL, Руководство пользователя

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XDSL Testing and Loop Qualification
DSL Auto-Test
5
5-11
Press
L
to save any of the above waveforms in the
Frequency Graph
storage memory.
acy58s.eps
Figure 5-6. DSL Auto-Test Loss Results: ADSL Bits/Tone Graph
Disturber Mask Overlays
From any one of the ADSL
Loss
,
SNR
, or
Bits / Tone
graph screens, press
B
(
Disturber Mask
), then press
G
or
I
to superimpose any of a group of typical
disturber masks on the graphs. By comparing the graphs to each type of
disturber mask, you can visually determine which type of service on a pair in
the same or adjacent binder group may be affecting the pair under test.
DSL Auto-Test Results: All Service Types
To run a rapid qualification summary of all Service Types (listed in Table 5-1)
(except ADSL2+ & VDSL) in a single pass, select
All
for the
Qualified
Service
in the Setup screen in Figure 5-2.