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.

TransmtterReceiver

Only error frame retransmitted

Page 1 completed

Page 2 completed

CED

NSF•CSI•DIS

NSS•TSI•DCS

Training

TCF

CFR

Image signal

PPS NULL

MCF

Image signal

PPS MPS

PPR

Image signal retransmitted PPS MPS

MCF

Image signal

PPS EOP

MCF

DCN

256 frames received

Error occurred

GD-1150/1151/1200/1201/1160/1260

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DIALING/COMMUNICATION CONTROL

 

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Image 42
Toshiba GD-1201, GD-1260, GD-1160 Only error frame retransmitted 1 completed 2 completed, Frames received Error occurred