Exfo MaxTester 635 Manuale Utente Pagina 313

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Running DSL/IP Tests and Viewing Results
Copper and VDSL2/ADSL2+ Multi-play Test Set 305
Loop Diagnostics
Loop Diagnostics
The Loop Diagnostics tab displays characteristics
and potential problems on the line, in graphical
format. There are 3 separate graphs for each pair:
Downstream SNR per Bin presents the
downstream signal-to-noise ratio per bin.
Downstream ATTN per Bin shows the
downstream attenuation from Hlog (Channel
Response).
Downstream QLN per Bin shows the
downstream PSD noise from quiet line noise.
Press to switch between graphs.
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