Specifications

CHAPTER 2 OPERATION AND TIMING
2-68
COPYRIGHT
©
1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 MAY 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
d. Changing the Data Transmission Speed (by the receiving device)
In response to the Sh signal from the transmitting device, the receiving device sends a PPh signal.
Thereafter, the MPh sequence executed by both modems will determine a new data transmission
speed.
Figure 2-418 Changing the Data Transmission Speed (by receiving device)
Note:
The shaded signals need special attention among those in the procedure.
Sh
Sh
ALT
ALT
PPh
PPh
MPh
MPh
E
flags
flags
PPR
ALT
MPh
MPh
E
flags
"1"
S
S
PP
B1
Image
data
Turn-Off
PPS-NULL
TX RX
Image
data
Turn-Off