Specifications
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©
1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 MAY 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-61
CHAPTER 2 OPERATION AND TIMING
c. Equalizer and Echo Canceler Training (phase 3)
Training (adjustment) is executed to optimize the functions of filters (e.g., equalizer) using the
parameters set in phase 2.
• Transmitting device
Signal
S signal
S signal
PP signal
TRN signal
Notation
S
S
PP
TRN
Description
Executes short training.
Used for training of an equalizer
by the receiving modem.
Used to determine the
transmission speed by the
receiving device.
Remarks
S is the result of
rotating the phase of S
by 180°.
d. Last Training (phase 4)
The maximum data transmission speed is selected, a trellis coder is selected, and possible data
speeds are selected.
• Transmitting/Receiving Devices
Signal
PPh signal
ALT signal
Modulation
parameter
E sequence
Notation
PPh
ALT
MPh
E
Description
Used for training of an equalizer
by the receiving modem.
Communicates the maximum data
transmission speed, type of trellis
coding, type of pre-coding, and
other parameters used for data
transmission.
Remarks
20-bit sequence