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DIALING/COMMUNICATION CONTROL
3 - 5
3
- Transmission and reception in the ECM mode
ECM (Error Correction Mode) conforms to T.30.
When an error has occurred to the received image data, the receiving station informs the sending
station of the occurrence of the error, and the sending station sends the image data again.
Transmtter Receiver
Image signal
Image signal
Image s
ignal retransmitted
Image signal
256 frames received
Error occurred
Only error frame retransmitted
Page 1 completed
Page 2 completed
CED
NSF•CSI•DIS
NSS•TSI•DCS
Training
TCF
CFR
MCF
MCF
MCF
PPS MPS
PPS NULL
PPS MPS
PPS EOP
PPR
DCN