Paradyne COMSPHERE 3920PLUS Series, Technical Reference Manual

Page: 70 / 356

Status Branch
4-11 3920-A2-GH30-40 October 1998
Table 4-2
SDC Performance Measurements
Group DTE Rate Compression Ratio Line Efficiency
Tx The number of bits per second
received from the DTE. This
number takes into account only
the data between the opening and
closing flags of the HDLC frames.
Flags and DTE interframe time fill
are ignored. The ratio between the number of
bits in the input and output of the
compression algorithm. The
calculation does not include the
overhead of the LAPM frame or
the DTE flags and DTE
interframe time fill. The ratio between the number of
bits per second sent on the line,
and the line rate. The calculation
does not include the DCE
interframe time fill.
Rx The number of bits per second
sent to the DTE. This number
takes into account only the data
between the opening and closing
flags of the HDLC frames. Flags
and DTE interframe time fill are
ignored. The ratio between the number of
bits in the output and input of the
decompression algorithm. The
calculation does not include the
overhead of the LAPM frame or
the DTE flags and DTE
interframe time fill. The ratio between the number of
bits per second received from
the line, and the line rate. The
calculation does not include the
DCE interframe time fill.
V.34
When running V.34 modulation, this function displays information about the modem’s receiving
and transmitting data rate, symbol rate, transmitting level, and asymmetric rate.
NOTE
The V.34 status display is available only when the modem is
configured for V.34 modulation.
To access V.34 from the Status branch, make the following selection:
F1
Status:
SDC
V.34
F2
F3
Select V.34.
F1
Status: V.34
TxRate = xxxx Kbps
F2 F3