IBM SY44-5902-05 manual Customer control panel functions Models 270, 8xx, SB2, SB3

Increment and Decrement buttons

Enter Push button

Mode Selects

Electronic Keystick Slot

Secure

Auto

Normal

Manual

If your control panel looks like Figure 77 on page 176, before you can use

Increment and Decrement buttons and the	Enter push button, you need to press
Mode Selects to select Manual mode	.

To determine how to activate functions 01 and 02 on a control panel, do the following:

1.Does the control panel have an electronic keylock (a keystick)?

Yes No

↓The IPL key mode (M or N only) is displayed. The IPL key modes, Auto and Secure, are not supported. Follow function 01 and 02 procedures for system types that do not use a keystick.

2.Insert the keystick.

Press the Mode-selection button to select the IPL mode. Follow function 01 and 02 procedures for systems with an electronic keystick.

To select a function number, press the Increment (↑) or Decrement (↓) button on the control panel. To activate the function, press Enter on the control panel while the desired function number is displayed.

Note: The function that is displayed is not activated until you press Enter on the control panel.

Control panel function descriptions (Models 270, 8xx, SB2, SB3, and 890)

Customer control panel functions (Models 270, 8xx, SB2, SB3, and 890)

Function 01–Display Selected IPL Type and IPL Speed (on Systems with a Keystick): This function allows you to display the selected type and speed for the next IPL.

1.Display IPL types (A, B, C, or D).

2.Display IPL speed (F, S, SE, V=F, or V=S).

When selected, function 01 displays the currently selected IPL type and IPL speed values (where each (_) represents 1 character):

Chapter 5. Control Panel Functions 177