AAM1212 User’s Guide
Chapter 22 Diagnostic
161
log
This is a format for providing channel characteristics. It provides magnitude values
in a logarithmic scale. This can be used in analyzing the physical condition of the
ADSL line.
QLN
The Quiet Line Noise for a DMT sub-carrier is the rms (root mean square) level of
the noise present on the line, when no ADSL signals are present. It is measured in
dBm/Hz. The QLN can be used in analyzing crosstalk.
SNR
This is the upstream and downstream Signal-to-Noise Ratio (in dB). A DMT sub-
carrier’s SNR is the ratio between the received signal power and the received
noise power. The SNR can be used in analyzing time dependent changes in
crosstalk levels and line attenuation (such as those caused by temperature
variations and moisture).
Table 55
Line Diagnostics Test Parameters
LABEL
DESCRIPTION
Summary of Contents for AAM1212
Page 1: ...AAM1212 ADSL2 Module over POTS in the IP DSLAM User s Guide Version 3 50 9 2005 ...
Page 23: ...AAM1212 User s Guide 22 ...
Page 27: ...AAM1212 User s Guide 26 ...
Page 35: ...AAM1212 User s Guide 34 Chapter 1 Getting to Know Your AAM1212 ...
Page 49: ...AAM1212 User s Guide 48 Chapter 3 Hardware Connections ...
Page 55: ...AAM1212 User s Guide 54 Chapter 4 Web Configurator Introduction ...
Page 63: ...AAM1212 User s Guide 62 Chapter 5 Initial Configuration ...
Page 71: ...AAM1212 User s Guide 70 Chapter 6 Home and Port Statistics Screens ...
Page 83: ...AAM1212 User s Guide 82 Chapter 7 Basic Setting Screens ...
Page 111: ...AAM1212 User s Guide 110 Chapter 8 ADSL Port Setup ...
Page 143: ...AAM1212 User s Guide 142 Chapter 18 Syslog ...
Page 151: ...AAM1212 User s Guide 150 Chapter 19 Access Control ...
Page 163: ...AAM1212 User s Guide 162 Chapter 22 Diagnostic ...
Page 181: ...AAM1212 User s Guide 180 Chapter 25 Commands Overview ...
Page 249: ...AAM1212 User s Guide 248 Chapter 29 IP Commands ...
Page 261: ...AAM1212 User s Guide 260 Chapter 30 Statistics Commands ...
Page 277: ...AAM1212 User s Guide 276 Chapter 33 Troubleshooting ...
Page 283: ...AAM1212 User s Guide 282 Virtual Circuit Topology ...