How To Use Post; Pre-Post Preparation; Setting Up A Tip Connection - Sun Microsystems Sun Blade 1000 Service Manual

3.1.1

How to Use POST

When the workstation power is applied, POST runs automatically if both of the
following conditions apply:
The diag-switch? NVRAM parameter is set to true.
The diag-level is set to min or max.
In the event of an automatic workstation reset, POST runs if the diag-switch?
NVRAM parameter is set to true and the diag-level flag is set to either max or
min.
Note – If the diag-switch = false, POST is disabled. If diag-switch =
true and diag-level = max, then POST runs in max mode. If diag-switch =
true and diag-level = min, then POST runs in min mode.
3.2

Pre-POST Preparation

Pre-POST preparation includes:
Setting up a terminal interface processor (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.
3.2.1

Setting Up a TIP Connection

A TIP connection enables a remote terminal window to be used as a terminal to
display workstation test data. Serial port A of a tested workstation is used to
establish the TIP connection between the workstation being tested and another Sun
workstation monitor or TTY-type terminal. The TIP connection is used in a terminal
window and provides features to help with the OpenBoot program.
To set up a TIP connection:
1. Connect serial port A of the workstation 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).
3-2 Sun Blade 1000 and Sun Blade 2000 Service Manual • January 2002