IBM RT User's Setup Manual page 109

A-2 User Setup Guide
and Printer Adapter) have two lines for recording device
names.
If the IBM RT PC Expansion Unit Adapter is used, record it
under the Name column as you would any other adapter. In
the Devices column, record "IBM 6192 Expansion Unit," and
then record the adapters and devices that relate to the IBM
6192.
Disregard the extra lines on the form if the adapter has only
one or two ports.
• Record only the devices you connect. Depending on your
system, you might not write in all the spaces. Do not record
where you connect the keyboard and mouse.
4. The ID column under Adapters is provided to distinguish
between adapters of the same type. You will complete this part
of the cabling record when you test the system in Section 3.