IBM Infoprint 1116 Setup Manual page 26

Connection points
12
Install memory cards
2
Avoid touching the connection
points along the edge of the card.
Save the packaging.
3
Locate the bottom connector on
the system board.
4
Hold the option card with the
connection points pointing toward
the bottom connector on the
system board.
5
Insert the card into the connector
at a 45 degree angle.