CHAPTER 11 Diagnostics
Diagnostics Test
◆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
◆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.
DIAGNOSTICS TEST
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:
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