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4. *2 is the time between CD signal detection and data transmission interrup-
tion, which changes with the baud rate as follows:
Baud rate (bps) Maximum time (ms)
1,200 20.0
2,400 11.0
4,800 6.0
9,600 4.0
19,200 3.0
1, 2, 3... 1. The RS signal is OFF when no data is transmitted.
2. Data A is transmitted after confirming that the CD signal is OFF.
3. When the CD signal is ON while data A is being transmitted and the CD sig-
nal is detected, the transmission of the data will be interrupted, the RS signal
will be turned OFF, and data B will be received.
4. When the Host Link Unit detects the CD signal going OFF, the transmission
of data A will be resumed, in which case, if the retry setting has been set,
data A will be re-transmitted from the beginning. If the retry setting has not
been set, data A will be re-transmitted from the interrupted part.
5. When the transmission of data A is completed, the RS signal will turn OFF.
Communications Timing Section 4-5
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