Management and Diagnostic Console

Analyzing General Information

The General Information pane shows diagnostic information for the current DSL connection (or connection attempt). These values are also listed in the last row of the Training History pane.

Item

Description

Value

Comment

DSLAM

Lists information about the

 

 

 

DSLAM, including country,

 

 

 

DSLAM vendor, and specifics.

 

 

DSL Line

During line search, the value

1 or 2.

None or Searching for DSL

 

will alternate between 1 and

 

signal.

 

2. The “Searching for DSL

 

 

 

signal” comment appears until

 

 

 

the ADSL protocol is

 

 

 

confirmed with the DSLAM on

 

 

 

the current line.

 

 

Downstream

The configured DSL service

Varies by service

 

Rate Cap

downstream speed.

provider.

 

Downstream

The measurement (in kbps) of

Varies by service

 

Atten. at 300kHz

the decrease in downstream

provider.

 

 

signal strength.

 

 

Uncancelled Echo

Measure (in dB) of the

Appropriate values

Ok or Suspicious - check

 

uncancelled echo relative to

usually range

phone filters and alarm.

 

the background noise on the

between -25dB and

 

 

line, indicating how much the

-6dB. A positive

 

 

uncancelled echo is affecting

value (for example,

 

 

DSL performance.

+12) could

 

 

 

indicate the

 

 

 

presence of an

 

 

 

unfiltered

 

 

 

telephony device

 

 

 

and/or an alarm.

 

VCXO Frequency

Indicates the difference

The ideal value is

Ok or Suspicious -

Offset

between the gateway’s and the

zero (0). The

hardware frequency

 

DSLAM port’s crystal

maximum

mismatch.

 

frequency in parts per million

difference should

 

 

(ppm).

be less than 150

 

 

 

ppm.

 

Final Rx Gain

Indicates the current receive

Dependent on DSL

Ok or Suspicious -

 

gain setting (in dB).

line length.

possible saturation.

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2Wire None manual Analyzing General Information