7.4 How to Set Up a tip Connection

A tip connection enables you to use a remote shell window as a terminal to display test data from a system. Serial port A or serial port B of a tested system is used to establish the tip connection between the system being tested and another Sun system monitor or TTY-type terminal. The tip connection is used in a terminal window and provides features to help with the OBP.

To set up a tip connection:

1. Connect serial port A of the system being tested to serial port B of another Sun system using a serial null modem cable (connect cable pins 2-3, 3-2, 7-20, and 20-7).

   

2. At the other Sun system, check the /etc/remote file by changing to the /etc directory and then editing the remote file:

   hardwire:/ dv=/dev/term/b:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:

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   Note -

   The example shows connection to serial port B.

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3. To use serial port A:

   1. Copy and paste the serial port B remote file.

   2. Modify the serial port B remote file as follows:

      hardwire:\ dv=/dev/term/a:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:

4. In a shell window on the Sun system, type tip hardwire.

   hostname% tip hardwire connected

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   Note -

   The shell window is now a tip window directed to the serial port of the system being tested. When power is applied to the system being tested, POST messages will be displayed in this window.

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5. When POST is completed, disconnect the tip window as follows:

   1. Open a shell window.

   2. Type ps -a to view the active tip line and process ID (PID) number.

   3. Type the following to kill the tip hardwire process.

      % kill -9 PID#

7.4.1 How to Verify the Baud Rate

To verify the baud rate between the system being tested and a terminal or another Sun system monitor:

1. Open a shell window.

2. Type eeprom.

3. Verify the following serial port default settings as follows:

   ttyb-mode = 9600,8,n,1 ttya-mode = 9600,8,n,1

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   Note -

   Ensure that the settings are consistent with TTY-type terminal or system monitor settings.

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