Olivetti d-Color MF 4003, Руководство по обслуживанию

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d-Color MF4003/MF3303
P THEORY OF OPERATION > 8. FK-517
P-95
(a) Beginning of communications to beginning of 1st page transmission
CNG CM CJ
INFO
0c
B B L1 L2 B S S PP TRN PPh ALT MPh MPh E Flags TSI DCS Flags
"1"
(Note)
S S PP B1
Image
Data
ANSam JM
INFO
0a
A A A
INFO
h
PPh ALT MPh MPh E NSF CSI DIS Flags
CFR
Fla
gs
Change and determination
of the V 8 communication
ability and directions
Phase 2
Determination of the Modulation
Mode for measuring line
characteristics, and then
measurement
Phase 3
Training of equalizer
Control channel startup
(establishment) procedure
(main channel speed determination, etc.)
Main channel re-synchronization procedure
(establishment of main channel)
75 5 ms 70 5 ms 70 5 ms 70 5 ms
Call
Terminal
Answer
Terminal
75 5 ms
Network Interaction
Line Probing
Primary
Channel
Equalizer
Training
Modern Parameter
Exchange
T.30 Fax Handshaking
Primary
Channel
Resync.
Note - The string of consecutive 1s shall be followed by the 4T of scrambled ones defined in 12.6.3/V34.
(b) Signals between pages
Sh
ALT
E
PPS-MPS
Flags "1" S S PP
B1
Image
Data
MCF Flags
Source Terminal
Image
Data
Sh
Flags
Sh
ALT
E
Sh
Recipient Terminal
Control channel re-synchronization procedure
Main channel re-synchronization procedure
(c) 2nd page transmission termination to communication termination
Sh
ALT E
PPS-EOP
Flags "1" DCN
MCF
Flags
Control channel re-synchronization procedure
Source Terminal
Image
Data
Sh
Flags Sh
ALT E
Sh
Recipient Terminal
Line Disconnect
Line Disconnect
Note - Some terminals may disconnect the line immediately after sending DCN without sending consecutive 1s.
(3) Procedure details
(a) Phase 1 (V8) ....Beginning of connection between a calling modem and a called modem
Calling
Called
CI,CI,CI(*1) CM,CM,CM(*2) To Phase 2
ANSam (*3)
JM,JM,JM
To Phase 2
75 5 ms
75 5 ms
1 sec
When ANSam / ANS is detected
(CI must be sent three times or more)
0.5 sec or more
(echo canceler is OFF.)
Te
When JM is detected twice or more
When CM is detected
twice or more
0.2 sec or more
5 1 sec or less
When CJ or Tone B is detected
CJ
• *1: One of no signals / C1 / CNG (T.30) / CT (V.25)
• *2: V.34 full-duplex ability in the modulation mode bit is ON.
• *3: ANSam of phase inversion is sent. Phase inversion is an option in case of supporting only half-duplex. When CM or valid signal
from the calling side is not detected, the procedure is moved to T.30, etc. after 75 ± 5 ms interval.
Y119930-3 Service Manual