14
Configuring Your Software
1.
Turn on your computer (and modem if you have an external).
2.
Install your communications software (refer to the software's
documentation).
3.
If you have an external modem, follow this step.
Otherwise, skip to step 4.
· From DOS, change to your Windows directory and
type MSD.
· Type C for COM Ports. Find the line UART Chip Used and
match it with the COM Port
column to which you attached
your modem to determine the UART type (usually 8250,
16450, or 16550). Remember your UART type for step 5.
4.
Start your communications software program.
5.
Set the software's serial port (baud) rate based on your UART
type. Also, fix or lock the serial port rate (if
referred to as
autobaud, select OFF).
UART
Serial Rate
16550
115.2K or 57.6K bps
16450
38.4K
bps
8250
19.2K bps
Note: All internal Sportsters have a 16550 UART on the modem. Some software packages offer 12.000 bps
as a serial port rate. Do NOT select this option. Your modem will not function properly with that setting.
6.
Specify the serial (COM) port used by the modem in your
communications software if working in
DOS. The default
configuration on internal modems is COM 2, IRQ 3, unless you have changed it.
For external modems, check the serial port to
which your modem is connected.
7.
Specify your modem's flow control setting: RTS/CTS for
hardware flow control (highly
recommended) or XON/XOFF for
software flow control. You should disable the flow control
method you are not using.