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AT%E Auto EQM Retrain
The %E command allows an originating modem to automatically retrain its comunications
equalisers during V.22bis MNP connections, or change the speed at twhich it is connected to
another modem.
S Register 33 and S Register 45 contain EQM (Eye Quality Monitor) threshold values. When
the quality of the connection deteriorates to this value, the modem will attempt to retrain the
connection.
The %E2 command allows an originating modem to automaticallyr etrain to a lower speed if the
line quality deteriorates. This only works between two modems, both supporting the feature.
+
In all V.32 and V.32bis connections, Auto Retrain is enabled.
Options
AT%E0
Auto EQM Retrain OFF
AT%E1
Auto EQM Retrain ON
AT%E2
n
V34/V32 auto rate change
See Also
S Register 33
V.32/V.32bis EQM Threshold Value
S Register 45
V.22bis EQM Threshold Value
O Command
Return to On-line State
%Q Command
Line Signal Quality
Range
0-2
+
K56flex V.90 thresholds are set by S registers S122 (down-shift) and S123 (up-shift).
Summary of Contents for MD1276A
Page 1: ...MD1276A Global 56K V90 Modem User s Guide 0049 2200 001 Rev A FEBRUARY 2004 0049 2200 500...
Page 128: ...Page 128 Range 0 2...
Page 223: ...S Registers Page 223 See Also ATS105Voice Dead man Timer Range 0 255...
Page 250: ...Page 250 Standard RS 232 Examples...
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