Auxiliary Serial Port - DEC 4000 AXP Service Manual

6.5.2 Auxiliary Serial Port

The baud rate for the auxiliary serial port is set via the nonvolatile environment
variable, tta1_baud. Allowable values are 600, 1200, 2400, 4800, 9600, and
19200. Use the command to assign values to the tta1_baud environment
set
variable.
6–44 System Configuration and Setup