CHAPTER 7: Nonstandard Transmission Speeds
17
7. Nonstandard Transmission Speeds
The SME-4M can be configured to operate at some nonstandard data transmission speeds depending
upon the model and the frequency of the installed crystal. To set the SME-4M for one of these different
speeds, configure the unit according to the chart below.
Table 7-1. SME-4M Synchronous Transmission Speeds
ME251
ME253
ME255
CRYSTAL
2.4576 MHz
1.792 MHz
2.048 MHz
FREQUENCY
STRAP
POSITION
TRANSMISSION RATE (bps)
a
76,800
56,000
64,000
b
153,600
112,000
128,000
38,400
38,400
28,000
32,000
19,200
19,200
14,000
16,000
9600
9600
7000
8000
4800
4800
3500
4000
2400
2400
1750
2000
1200
1200
875
1000
