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Calling Side (transmitter)
Dial
Transmission of 1st block
(error not generated)
End of transmission
of block
Next block present
Transmission of 2nd
block (error generated)
End of transmission
of block
Next block absent
Re-transmit of 2nd block
Line disconnected
Fig. 5-85 Example of ECM Communications
G3 FACSIMILE COMMUNICATIONS
Call
Response
CNG
CED
DIS
DCS
CFR
Training
Frame 0
0
Frame 1
1
Frame 2
2
Frame 255
255
PPS-NULL
MCF
Training
Frame 0
0
Frame 1
1
Error generated
Frame 2
2
Error generated
Frame 255
255
PPS-EOP
Error frame present
PPR
Training
Frame 1
Frame 2
PPS-EOP
Received successfully
MCF
DCN
Line disconnected
Called Side (receiver)
Received successfully
5–125
1
2
3
4
5
6
ït
çi
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