IBM 5251 Series Maintenance Information Manual page 191

11.
Contact the system console operator for the
address of this display station. Set the Address
switches and the Terminator switch.
Use this table to determine the setting of the three
Address switches:
If the Address
address is:
l
Switch
Settings
~~~
0
=
1
=
~~~
2
=
)jJ~)jJ
3
=
tjl~~
4
=
~bJb1
5
= ~~~
6
=
~~tj1
7
=
Invalid
Position 1 stops the communications signal and
completes the electrical circuit. Position 1 is
the required position when the display station
is the last work station on the line.
Position 2 allows communications signals to
flow through the display station to the next
work station.
12. Reinstall the front access panel cover.
13. Set the Power switch to the On position.
The following conditions indicate that the display
station is working with the controller:
a. The cursor is in the upper left corner.
b. The System Available indicator is on.
c. The Line Sync light is on.
d. The Ready light is on.
e. The three check lights are off.
If the display station has the conditions described
in step 8 but does not have the conditions
described in this step, the system may not be
powered up, running, or working properly, or your
display station may not be in session with the
system.
14. Press any numeric or alphabetic keys and listen for
the clicker sound as each key is pressed. Observe
the cursor as each character is displayed; the
cursor should move.
15. If the Keylock feature is installed on the display
station, give both keys to the customer.
Setup is complete.
Appendix A. Display Station Setup Instructions 5251 MIM A-3