Silicon Graphics CHALLENGE L, User Manual, Page: 84 / 164

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Chapter 4: Installing Optional Peripherals
To add a PostScript
®
serial printer to port 2, become the superuser, and enter
the following:
# mkPS PostScript ttyd2
# /usr/lib/lpadmin -dPostScript
Refer to the IRIX Advanced Site and Server Administration Guide for more
information about configuring your printer.
Connecting an ASCII Terminal
You can connect an optional ASCII terminal to your server by using a simple
null modem cable with a 9-pin connector. See Table 4-4 for the serial port to
null modem cable pin assignments. Connect one end of the cable to the
terminal and the other end to the 9-pin system console port labeled tty_1 on
the main I/O panel. If you are building a 9-to 25-pin cable connection, the
pins will typically map as shown in Table 4-5
.
The ASCII terminal must be set with the following operational
characteristics:
• 9600 baud
• 8 bits
• 1 stop bit
• No parity
For your ASCII terminal to operate properly as the system console, it must
be plugged into the RS-232-compatible connector labeled tty_1 on the
system I/O panel.
Table 4-5 Typical ASCII Terminal Connection
SGI Host Connector Signal SGI Pin # 25-Pin Connector to Terminal
Transmitted Data (TXD) 2 3 (RXD)
Received Data (RXD) 3 2 (TXD)
Signal Ground (GND) 7 7 (GND)