D-Link DAS-3216 User Manual

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D-Link DAS-3216 ADSL IP DSLAM 
 
 
                                                                 
 
45 
Performance Monitor 
This section covers performance monitor by selecting DSL Port Performance 
from EmWeb Menu. It includes: 
ADSL Physical Layer PM {Physical Layer Info} 
Allow you to view the performance information on physical layer by specifying 
the definite unit. The procedures are as follows: 
1. Click on “Physical Layer Info” of DSL Port Performance Menu. 
The Physical Layer Info screen appears as follows: 
 
Note: In this example, only port 1 is connected with CPE and that is why only 
“No defect” value is displayed in the unit 1/port 1 row. 
Table 3-6    Physical Layer Info Field Definitions 
Field Definition 
SNR margin 
Noise margin value. (dB) 
Attenuation 
Difference in the total power transmitted and the 
total power received by the peer atu. (db) 
Status 
Current status of the ATU line. The possible 
values displayed are as follows: 
No defect: there are no defect on the line 
los: atu-r failure due to not receiving signal 
lpr: atu-r failure due to loss of signal