IBM 5280 User's Setup Manual page 136

60. Determine the type of communications adapter that you have
on your system.
If you do not know what type of communications adapter you have,
contact the person who did the planning for your system or the manager
of the area where your system is located.
61. Press the number corresponding to the feature type, then
press the Enter key.
If you pressed the number 1 for the EIA feature type, go to the next
step. If you pressed the number 2 for the OOSA feature type, go to step
70. If you pressed the number 3 for the integrated modem feature type,
go to step 74.
62. Observe this display, then press the Enter key.
For this system checkout procedure, use the automatically selected option
of 2. This cable should not be connected to anything other than the
5285 or 5288. Connection of this cable to a modem is discussed in
Section 9.
Is the Communications Cable attached to
an IBM moclerll?
Options
are:
i.
YES
opt
i em:
2
Pl"f)SS
ENTER
J
User's Setup Procedures 129