Sun Microsystems Netra t 1120, Service Manual

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3-2 Netra t 1120/1125 Service Manual • August 1998
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 “To Set Up a
tip
Connection
below.
■
Verifying baud rates between a Netra t 1120/1125 and a terminal. See Section 3.2.2
“To Verify the Baud Rate” on page 3-3.
3.2.1 To Set Up a
tip
Connection
A
tip
connection enables a remote shell window to be used as a terminal to display
test data from a system being tested. Serial ports A or B are used to establish the
tip
connection between the system unit 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.
1. Connect serial port A of the system being tested to another Sun workstation serial
port B using a serial null modem cable (connect cable pins 2-3, 3-2, 7-20, and 20-7).
2. At the other Sun workstation, check the
/etc/remote
file:
Note –
The example shows connection to serial port B,
ttyb
.
3. To use serial port A:
a. Copy and paste the following:
hardwire:\
:dv=/dev/term/b:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D:
hardwire:\
:dv=/dev/term/b:br#9600:el=^C^S^Q^U^D:ie=%$:oe=^D: