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Chapter 3 Power-On Self-Test 3-3

3.2.1 Setting Up a Tip Connection

A tip connection enables 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 tested system

unit is 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.

To set up a tip connection:

1. See

FIGURE 3-1. Connect serial port A of the system being tested to serial port B of

another Sun workstation using a serial null modem cable (connect cable pins 2-3,

3-2, 7-20, and 20-7).

FIGURE 3-1 Setting Up a TIP Connection

2. At the other Sun workstation, check the /etc/remote file by changing to the

/etc directory and then editing the remote file:

Note – The example shows connection to serial port B.

3. To use serial port A:

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

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

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

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

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WatchNet RTS series Manual de servicio Pagina 35