IBM Personal Computer XT Manual To Operations page 237

SECTION 4. OPTION INSTALLATION
How to Use This Section
This section contains the instructions for installing the
options you purchased for your IBM Personal Computer
XT. Because many of the options refer to switch
settings, a complete list of the settings is also in this
section. After you install an option, file the installation
instructions under the appropriate bleeder tab, as shown
in the figure below.
1525803
April 1983
© Copyright IBM Corp. 1983
Option Installation 4-1