Maintaining PCI cards
Issue 3.3 February 2003 71
SAI/P cards
The Serial Asynchronous Interface/PCI (SAI/P) card connects terminals, printers and
modems to the computer. The computer can accommodate two SAI/P cards. Each SAI/P
card is associated with an external, 8-port expander box.

Identifying device entry names for ports on an SAI/P card

When the SAI/P card driver is installed, device entries are created to access the physical
ports on the expander box. The device name that is created is /dev/term/N, where N
represents SAI/P slot and expander box port entries. For example, when two SAI/P cards
are installed, the card in the lowest numbered slot is associated with physical ports
a000-a007, while ports for the second card are denoted by b000-b007.
To display the port designations for each SAI/P card, use the
/cms/toolsbin/display_ports command. A response similar to the following is
displayed:

Adding, moving, or removing an SAI/P card

This section describes how to add, remove or move an SAI/P card.
Adding an SAI/P card – To add an SAI/P card:
1. Identify the existing SAI/P cards installed in the system.
2. Verify that you have a recent CMSADM file system backup before you change card
configurations.
3. Enter:
/usr/sbin/shutdown -y -i0 -g0
This shuts down the system.
4. Turn off the system.
5. Turn off the system monitor.
6. Turn off all external SCSI devices starting with the device that is closest to the system
and working toward the farthest device.
7. Decide where you will install the new SAI/P card. Insert the SAI/P card into the Ultra 5.
See Installing or removing PCI cardson page 66 for more information.
8. Connect the expander box to the new SAI/P card.
/dev/term devices:a000 a001 a002 a003 a004 a005 a006 a007
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