Pre-Post Preparation; Setting Up A Tip Connection; Table 3-1 Diag-Level Switch Settings - Sun Microsystems Ultra 1 Creator Series Service Manual

diag-level switch determines the POST function.
settings for disabling POST (off), enabling POST maximum (max), or enabling POST
minimum (min).
TABLE 3-1
Diag-Level Switch
Setting
Off
Max
Min
3.2

Pre-POST Preparation

Pre-POST preparation includes:
Setting up a tip connection to another workstation or terminal to view POST
progress and error messages.
See Section 3.2.1 "Setting Up a Tip Connection" on page 3-2.
Verifying baud rates between a workstation and a monitor or a workstation and a
terminal.
See Section 3.2.2 "Verifying the Baud Rate" on page 3-4.
If a terminal or a monitor is not connected to serial port A (default port) of a
workstation or server to be tested, the keyboard LEDs are used to determine error
conditions (see Section 3.9 "System and Keyboard LEDs" on page 3-12.)
3.2.1

Setting Up a Tip Connection

A tip connection permits a remote shell window to be used as a terminal to display
test data of a system being tested. Serial port A or serial port B of a workstation or
server being tested is used to establish the tip connection between the workstation or
server being tested and another Sun workstation monitor or TTY-type terminal. The
tip connection is used in a SunOS window and provides features to help with the
OBP.
To set up a tip connection:
3-2 Ultra 1 Creator Series Service Manual • August 1996
Diag-Level Switch Settings
POST
Initialization?
No
Yes (power-on)
Yes (power-on)
TABLE 3-1
Serial Port A
Serial Port A I/O Error Output
N/A N/A
Enabled Enabled
Disabled Enabled
lists the diag-level switch
Diag-Switch
Setting
Don't care
True
True