DSL-500 ADSL Router User’s Guide
67
Near End
Number of data transfer errors on the near end (ATU-R) listed
according to the correction technique
-
FEC Forward Error Correction
-
CRC Cyclic Redundancy Control
-
HEC Header Error Check
Far End
Number of data transfer errors on the far end (ATU-C) listed
according to the correction technique
-
FEC Forward Error Correction
-
CRC Cyclic Redundancy Control
-
HEC Header Error Check
Carrier Chart
The Carrier Chart illustrates the data rates distributed across the upstream and downstream frequency ranges.
Carrier Chart
This chart can be used to gauge signal quality for the entire upstream (lower portion) and downstream (upper
portion) range of discrete modular tones. The example above displays normal signal function for the full range of
frequencies.
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