IBM 5280 User's Setup Procedures page 146

140
Note: The telephone line socket should have been connected prior to
setup. If it has not been contact your supervisor who will notify the
person familiar with the local electrical codes and respor.c:;ible for
telephone line connection.
e. Notify your supervisor that you have completed setup.
4. You have the local DDSA communications line. Do the
following:
a. Remove the wrap connector by pulling straight out.
b. Put the wrap connector in the protective recess area of the machine
verification binder.
c. Push the controller connector into the DDSA adapter connector
and turn the thumbscrews until tight.
The other end of the DDSA adapter cable has been or wi!1 be connected
using another
5280
customer setup manual.
Controiier
Other End of the Cable
Connector
DDSA Adapter Cable