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4800430033001570800115.2
200016301100900330230.4
1100900670430100460.8
470430300100N/A921.6
25%
trans
time
20%
trans
time
15%
trans
time
10%
trans
time
4%
trans
time
Maximum Load (pF)
Data Rate
(kbaud)
Note 1: The signal transition time ratio is defined as the percentage of the
unit interval or bit time (the inverse of the data rate) that is occupied by the
signal transitioning from -3V to +3V. The EIA/TIA-232-E standard
defines a maximum signal transition time ratio of 4%; most RS-232
receivers will recognize signal transitions with much larger ratios. With a
4% signal transition time ratio, EIA/TIA-232-E is limited to a theoretical
data rate of 200 kbaud. If maximum signal transition time ratio is
extended to 10%, 15%, 20%, or even 25%, the maximum data rate
achievable using EIA/TIA-232-E can be increased past 200 kbaud.
Note 2: A typical value for capacitance per foot of standard cable is 50
pF/ft.
36 DSCLP/SSCLP-100 User's Manual