Management and Diagnostic Console

Item

Description

Exit Code

Indicates the reason for a lost connection or a terminated training attempt.

 

Following are examples of the typical values that can be represented:

 

ERR_LOF_LIMIT - Retrained due to loss of framing.

 

ERR_LOS_LIMIT - Retrained due to loss of signal.

 

ERR_HI_BER_LIMIT - Retrained due to excessive CRCs.

 

RESTART - System deliberately restarted modem (line search, reprovisioning, or 30-

 

second timeout when waiting for DSL signal.

 

ERR_STATE_TIMEOUT - Modem timed out during training (for example, the modem

 

failed to detect pilot signal at the appropriate time).

 

ERR_ALL_OPTIONS_FAIL - Failed to negotiate a final bitrate with DSLAM.

 

RETRAIN_HIGHER - Proactive retrain in order to obtain a significantly higher connect

 

rate.

Echo

A measure of the uncancelled echo relative to the background noise on the line.

 

This is an indication of how much the uncancelled echo is affecting DSL

 

performance, rather than an absolute measure of the uncancelled echo.

VXCO

Indicates the difference between the gateway’s and the DSLAM port’s crystal

 

frequency in parts per million (ppm).

Rx Gain

Indicates the current receive gain settings, which will depend on the length of the

 

DSL line.

INC Tones

Indicates the number of compensation tones on which impulse noise is detected.

Reviewing Bitloading

The Bitloading pane shows the bits loaded per tone for the upstream (tones 6 to 31) and downstream (tones 32 to 255) spectrum. A single hex-digit for each tone shows the numeric values (0 to F) in addition to the bar-graph depiction.

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2Wire None manual Reviewing Bitloading, Vxco