3-2
Ultra 1 Creator Series Service Manual • August 1996
diag-level switch determines the POST function.
TABLE 3-1
lists the diag-level switch
settings for disabling POST (off), enabling POST maximum (max), or enabling POST
minimum (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:
TABLE 3-1
Diag-Level Switch Settings
Diag-Level Switch
Setting
POST
Initialization?
Serial Port A I/O
Serial Port A
Error Output
Diag-Switch
Setting
Off
No
N/A
N/A
Don’t care
Max
Yes (power-on)
Enabled
Enabled
True
Min
Yes (power-on)
Disabled
Enabled
True
Summary of Contents for Ultra 1 Series
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