UNIX systems traditionally support baud rates from 50 to 9600 baud.
The Macintosh hardware does not support baud rates below 300 baud, but
it does support baud rates higher than 9600 baud. To take advantage of
these higher baud rates, MachTen translates requests for the traditional
UNIX baud rates to the more useful set of baud rates supported by the Macintosh.
The table below lists the actual baud rate used by MachTen when the traditional
baud rates are requested.
Baud Rate |
Unix Name |
MachTen Baud Rate |
50 |
B50 |
14400 |
75 |
B75 |
28800 |
110 |
B110 |
57600 |
134 |
B134 |
115200 |
150 |
B150 |
230400 |
200 |
B200 |
300 |
300 |
B300 |
300 |
600 |
B600 |
600 |
1200 |
B1200 |
1200 |
1800 |
B1800 |
1800 |
240 |
B2400 |
240 |
4800 |
B4800 |
4800 |
9600 |
B9600 |
9600 |
19200 |
EXTA |
19200 |
38400 |
EXTB |
38400 |
Baud rates higher than 9600 baud are supported if Apple Serial DMA version
2.0.2 or later is installed. Serial DMA is included with Apple MacOS System
7.5.3.