fastbaud Data Rate Mapping

Use this procedure to enable data rates that exceed the maximum data rate supported by some UNIX operating systems. If your operating system supports data rates up to (or beyond) 921600, this procedure is unnecessary. See fastbaud Data Rate Mapping Table for a table of correspondences showing how data rates are mapped when fastbaud is enabled.

Procedure

1. Enter the following command at a command prompt:

   ditty fastbaud [device_name]

   (in AIX, use /usr/Lbin/tty/stty-digi fastbaud [device_name])

   where device_name is the name of the TTY device on which you want fastbaud activated. If no device is specified, the command acts on stdout.

2. Repeat Step 1 for all devices that require fastbaud data rate mapping. (The commands may be added to a startup script to cause them to run automatically whenever the system is started.)

To cancel fastbaud data rate mapping, enter the following command:

ditty -fastbaud [device_name]

(in AIX, use /usr/Lbin/tty/stty-digi -fastbaud [device_name])

Example:

If fastbaud is active for a port on an AccelePort Xp adapter, setting the data rate to 600 results in an actual data rate of 921600.