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Field Service Ver. 7.0 Jan. 2009
B. sample of a signal procedure at sending two pages
(1) Beginning of communications to beginning of 1st page transmission
Change and determination
of the V 8 communication
ability and directions
Call
Terminal
CNG
CM CJ
Answer
Terminal
ANSam
JM
Network Interaction
Note - The string of consecutive 1s shall be followed by the 4T of scrambled ones defined in 12.6.3/V34.
(2) Signals between pages
Source Terminal
Image
Data
Recipient Terminal
(3) 2nd page transmission termination to communication termination
Source Terminal
Image
Data
Recipient Terminal
Note - Some terminals may disconnect the line immediately after sending DCN without sending consecutive 1s.
Y104784-2
Phase 2
Determination of the Modulation
Control channel startup
Mode for measuring line
(establishment) procedure
characteristics, and then
Phase 3
measurement
Training of equalizer
(main channel speed determination, etc.)
75 5ms
70 5ms
70 5ms
B
B
L1
L2
B
S S PP TRN
PPh ALT MPh MPh E
PPh ALT MPh MPh E NSF CSI DIS
A A
A
75 5ms
Primary
Channel
Modern Parameter
Equalizer
Line Probing
Training
Control channel re-synchronization procedure
ALT
Sh
Sh
Sh
Sh
Control channel re-synchronization procedure
ALT
Sh
Sh
ALT E
Sh
Sh
Service Manual
2. COMMUNICATION CONTROL
Main channel re-synchronization procedure
"1"
Flags
TSI DCS Flags
(Note)
CFR
Flags
Exchange
T.30 Fax Handshaking
Main channel re-synchronization procedure
Flags
"1"
E
ALT
Flags
E
Flags
MCF
Flags
DCN
"1"
E
Flags
MCF
Flags
(establishment of main channel)
70 5ms
Image
S S
PP
B1
Data
Primary
Channel
Resync.
Image
S S
PP
B1
Data
Line Disconnect
Line Disconnect
33
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