IBM 5251 11 Maintenance Information Manual page 94

Select Configuration Data by:
a. Pressing the 3 key.
b. Pressing the Enter key.
The descriptions for Configuration Data are:
1. Device Addr is the address of the controller.
2. Unit Addr is the stations{s) assigned to the
controller. The first digit is the port number and
the second digit is the station address.
3. Logical I D is the name the system uses to
address this station.
4. Return to the Prime Option Menu by:
a. Pressing the C key.
b. Pressing the Enter key.
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Maintenance Procedures 5251 MIM 1-75