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G3 FACSIMILE COMMUNICATIONS
• Control channel start-up (Phase 4)
Select the maximum data signalling rate and trellis encoder and set the
data signalling rate that can be supported.
Transmitter/receiver
5–80
Abbre-
Signal
viation
PPh signal
PPh
ALT signal
ALT
Modulation
MPh
parameter
E sequence
E
Meaning
The other modem uses
this signal to train the
equalizer.
—
Indicate the image
transmission parame-
ters, such as maximum
data signal speed, con-
trol channel data sig-
nal speed, trellis coding
type, pre-coding type,
and baud rate.
—
Remarks
20-bit sequence
of binary 1's.
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