SMC Networks BARRICADE SMC7901WBRA2 B1 - Manual (Page 130)

C HAPTER 11 | Diagnostics
Diagnostics Test
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◆ Loop Attenuation (dB) — Displays the attentuation of the link to the
ADSL Router and the service provider in decibels.
◆ Signal Attenuation (dB) — Displays the signal attentuation of the
link which determines the frequency in decibels.
◆ SNR Margin (dB) — Displays the signal-to-noise ratio of the link in
dedibels.
◆ Attainable Rate (Kbps) — Displays the attainable rate of the link to
the service provider in kilobits per second.
◆ Output Power (dBm) — Displays the output power of the unit in
decibels per milliwatt.
◆ Tone Number — Displays the tone number of the ADSL signal.
(Range: 0~255)
◆ H.Real — Displays the real part of channel transfer function of each
subcarrier.
◆ H.Image — Displays the imaginary part of channel transfer function of
each subcarrier.
◆ SNR — Displays the SNR (Singal to Noise Ratio) of each subcarrier
expressed in decibels.
◆ QLN — Displays the Quite Line Noise of each subcarrier, expressed in
dBm/Hz.
◆ Hlog — Displays the amplitude response of channel transfer function of
each subcarrier, expressed in decibels.
D IAGNOSTICS T EST
The diagnostic test shows the test results for the connectivity of the
physical layer and protocol layer for both LAN and WAN sides.
Figure 81: Diagnostics Test
The following items are displayed on this page: