Source:  AIOCOMX

Explanation:  AIOCOMX detected a 16550 UART device in the port hardware and a NOFIFO parameter in the LOAD AIOCOMX command.AIOCOMX set the maximum port speed to 2,400 bps.

Action:  If 2,400 bps is an acceptable port speed, no action is required.

If you know the port hardware will support a higher speed, there are two ways to select a higher speed. Youcan use the MAXRATE= command line parameter with the LOAD AIOCOMX command to set a higher maximum port speed, oryou can reenter the LOAD AIOCOMX command without the NOFIFO parameter to select the default speed for thisconfiguration, which is 19,200 bps.

You can view the command line load parameters by entering the LOAD AIOCOMX ?command.