Canon MultiPass C560 Service Manual Page 117

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2-38
MultiPASS C530/C560 Chapter 2: Technical Reference
b) Typical protocol
Figure 2-25 Typical Protocol
CNG
ANSam
JM
CM
CJ
INFO0a
INFO0c
B
A
Connected to the line
B
Q
L1
L2
A
B
INFO0h
S
PP
TRN
PPh
ALT
MPh
MPh
E
flags
TSI
DCS
"1"
flags
S
PP
B1
Image
data
PPh
ALT
MPh
MPh
E
NSF
CSI
DIS
flags
CFR
flags
"1"
DCN
Turn-Off
ALT
Sh
E
flags
MCF
flags
ALT
Sh
Q
Sh
PPS-EOP
flags
E
Line released
Line released
Network interaction
(Phase 1)
(See page 2-39)
Probing
(Phase 2)
(See page 2-40)
Primary channel
equalizer training
(Phase 3)
(See page 2-41)
Control channel
start-up
(Phase 4)
(See page 2-41)
Control channel
(See page 2-42)
Primary channel
resyncronization
procedure
(See page 2-43)
Image data
(See page 2-43)
TX
RX
Control channel
resyncronization
procedure
(Communication end
procedure)
(See page 2-44)
Q
S
Q
S
A
Q
Q
Sh
NSS
V.8
V.34
Declares the usablemodulation
mode.
Declares that V.34 capability exists
oneachmachine,andtransfersthe
V.34 procedures withphase 2.
After declaring themodem's
modulation speed capacity, etc. to
each machine, thereceiving side
determines the modulationspeed
based on theresults of anprobing
signal output bythe transmitting
side.
The transmitting sideoutputs a
training signal todetermine the
image transmission speed.
Theoptimum image transfer speed
is determined bythe condition in
whichthetrainingsignalisreceived.
The pre-message protocolis done
in the sameway as anormalT.30,
at 1200bps.
Thetrainingsignal isoutputwiththe
determined parameters, and
continues to transmitthe image
data.
Thepost-messageprotocolisdone
in the sameway as anormalT.30,
at 1200bps.
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