D-Link DAS-4672DC 用户手册
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Diagnosis Management
Loop Diagnosis (DELT <Dual-Ended Line Test>)
The DELT loop diagnosis function provides mechanism to measure the ADSL loop quality. This
action will interrupt the ADSL connection. However, more detailed inform are gathered in
comparison with the aforementioned loop monitoring function.
action will interrupt the ADSL connection. However, more detailed inform are gathered in
comparison with the aforementioned loop monitoring function.
Step 1
Click Diagnosis xDSL Current Status Bits Allocation on Main Menu to open the
xDSL Port Selection Dialog as shown in Figure 11-114.
xDSL Port Selection Dialog as shown in Figure 11-114.
Step 2
Select the port you want to show and press Query button on the xDSL Port Selection
Dialog to open the ADSL Loop Diagnosis Dialog as shown in Figure 11-121. Table 11-
83 depicts the related parameters.
Dialog to open the ADSL Loop Diagnosis Dialog as shown in Figure 11-121. Table 11-
83 depicts the related parameters.
Step 3
Press Start button to get starting.
Step 4
Click “Graph” button to show the graph of Magnitude as shown in Figure 11-122 or the
graph of Quiet Line PSD as shown in Figure 11-123 or the graph of SNR as shown in
Figure 11-124.
graph of Quiet Line PSD as shown in Figure 11-123 or the graph of SNR as shown in
Figure 11-124.
In comparison with the loop monitoring function, the ADSL loop is corrupted whenever the
operator performs the DELT.
operator performs the DELT.
Figure 11-121 ADSL Loop Diagnosis Dialog
The above dialog lists the loop diagnostics parameters that display, see the ITU-T’s G.992.3 and
G.992.5 for more information.
G.992.5 for more information.
AMS LCT
Software Operation Guide