Canon MultiPASS C530 Service Manual page 120

b-3) Primary channel equalizer training (Phase 3)
Filters, such as equalizers, are trained (adjusted) with the parameters set in phase 2.
• Transmitter
Signal
S signal
S signal
PP signal
TRN signal
b-4) 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
Signal
PPh signal
ALT signal
Modulation
parameter
E sequence
MultiPASS C530/C560 Chapter 2: Technical Reference
Abbre-
viation
S Short training
S
PP The other modem uses
this signal to train the
equalizer.
TRN The receiver uses this
signal to determine the
transmission speed.
Abbre-
viation
PPh The other modem uses this signal
to train the equalizer.
ALT
———
MPh Indicate the image transmission
parameters, such as maximum data
signal speed, control channel data
signal speed, trellis coding type,
pre-coding type, and baud rate.
E
———
2-41
Meaning
The phase of S
is shifted from
the phase of S.
Meaning
20-bit sequence
of binary 1's.
Remarks
Remarks