IBM 5280 User's Setup Manual page 69

62
14. Connect the communications cable as follows.
a. Look at the communications socket (Number~.
b. Locate the communications cable.
c. Push the cable into the socket.
Socket Guide
Connector Guide
Note: If the cable does not fit easily into the socket, make sure that the
connector guides line up with the socket guides.
d. Make sure that the snap-locks lock into position. The other end
of the communications cable will be connected later, in Section
9.