IBM 520Q User Manual

Chapter 2. Architecture and technical overview 

The service processor provides an interface to the control panel that is used to display server 
status and diagnostic information. See Figure 2-21 for operator control panel physical details 
and buttons.

The primary control panel functions are defined as functions 01 to 20, including options to 
view and manipulate IPL modes, server operating modes, IPL speed, and IPL type.

The following list describes the primary functions:

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Function 01: Display selected IPL type, system operating mode, and IPL speed

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Function 02: Select IPL type, IPL speed override, and system operating mode

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Function 03: Start IPL

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Function 04: Lamp test

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Function 05: Reserved

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Function 06: Reserved

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Function 07: SPCN functions

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Function 08: Fast power off

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Functions 09 to 10: Reserved

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Functions 11 to 19: System reference code

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Function 20: System type, model, feature code, and IPL type

All the functions mentioned are accessible using the Advanced System Management 
Interface (ASMI), HMC, or the control panel.

The extended control panel functions consist of two major groups:

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Functions 21 through 49, which are available when you select Manual mode from Function 
02.

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Support service representative Functions 50 through 99, which are available when you 
select Manual mode from Function 02, then select and enter the customer service switch 1 
(Function 25), followed by service switch 2 (Function 26).

Note: For servers managed by the HMC, use the HMC to perform control panel functions.