Use this troubleshooting procedure when you need to test the connection at each terminal.
Procedure
Connect terminals to the ports (using a null modem cable, if necessary).
Enter the following at the UNIX command prompt for each port:
date >/dev/tty01where
dateis merely a command used for a this simple test to provide text output (there is no other significance) andtty01is the port to which the terminal is connected.