GD-1060 DIALING AND COMMUNICATION PROCEDURE
4 - 18
January 2001 © TOSHIBA TEC
b-3)
Equalizer and echo canceller training (Phase 3)
To optimize the filters such as an equalizer, the training (adjustment) is performed accord-
ing to the parameters set in phase 2.
• Transmitter
b-4)
Final training (Phase 4)
The settings such as the maximum value for the data rate, selection of the trellis encoder,
and data rate which can be supported, are made.
• Calling/receivers
Signal name
S signal
S signal
PP signal
TRN signal
Abbreviation
S
S
PP
TRN
Meaning
Short training
The modem of receiver uses it
for training the equalizer.
It is used for determining the
transmission rate by the receiver.
Remark
S is a signal that makes a
transition from phase S.
Signal name
PPh signal
ALT signal
Modulation
parameter
E sequence
Abbreviation
PPh
ALT
MPh
E
Meaning
The modem of other unit uses it
for training the equalizer.
——
It indicates the parameters used
for image transmission such as
the maximum data signaling rate,
type of trellis coding, and type of
pre-coding.
——
Remark
20-bit sequence of “1”s in bi-
nary