Displaying Vf Conditions - Paradyne COMSPHERE 3920Plus Technical Reference Manual

COMSPHERE 392xPlus Modems

Displaying VF Conditions

To display VF conditions, select Display from the Status:VF screen.
If the modem is receiving a signal, the signal quality appears on the LCD's bottom line. If the
modem is not receiving a signal, the message No Signal appears.
Press the
SigQual
RcvLevel
Sig/Noise
NrEchLvl
FarEchLvl
FarEchDel
4-6
Status:VF
Display Clear
F1 F2 F3
Status:VF
SigQual=Excelent
F3
F1 F2
key to scroll and view the VF conditions.
Not all conditions are available at 4800 bps.
Signal Quality displays the condition of the VF line. Possible values are
Excelent (Excellent), Good, Fair, Poor, or No Signal. These parameters
appear for V.34, V.32terbo, V.32bis, and V.32 modulations.
Receive Signal Level displays, in decibels referenced to one milliwatt (dBm),
the actual strength of the incoming signal. This parameter appears for V.34,
V.32terbo, V.32bis, V.32, and Trellis Multipoint modulations.
Signal-to-Noise Ratio displays, in decibels, the receive signal strength
relative to noise on the line. This parameter appears for V.34, V.32terbo,
V.32bis, V.32, and Trellis Multipoint modulations.
Near End Echo Level displays the signal level, in decibels referenced to one
milliwatt (dBm), of that portion of the transmit signal which has been echoed
back by the local line termination. This parameter appears for V.34,
V.32terbo, V.32bis, and V.32 modulations (in 2-wire only).
Far End Echo Level displays the signal level, in decibels referenced to one
milliwatt (dBm), of that portion of the transmit signal which has been echoed
back by the remote line termination. This parameter appears for V.34,
V.32terbo, V.32bis, and V.32 modulations (in 2-wire only).
Far End Echo Delay displays the roundtrip delay in milliseconds of the far
end echo. This parameter appears for V.34, V.32terbo, V.32bis, and V.32
modulations (in 2-wire only).
October 1998
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NOTE
3920-A2-GH30-40