IBM RS/6000 SP, Maintenance Information

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MAP 0110: Supervisor Subsystem
Figure 1-1. 8-LED Frame Supervisor Card LEDs
Note: For LEDs #3 and #4, only one communication S1 or S2 is active, while the other one is inactive.
Table 1-2 shows the frame supervisor LED definitions:
Table 1-2. 4-LED Frame Supervisor LED Definitions
LED
# Color Signifies
4 Yellow Supervisor bus communication status:
Ÿ Flashing: Problem: No communication with processor node(s) or switch assemblies
Ÿ Off: Communication okay
3 Yellow Control workstation current communication status:
Ÿ
On: Communication active (momentary)
Ÿ
Flashing: Problem—cannot communicate with control workstation
Ÿ Off: Communication inactive
2 Green Bulk 48 V dc power status:
Ÿ
On: All 48 V dc power supplies operating okay
Ÿ
Flashing: 48 V dc power supply problem
Ÿ
Off: No 48 V dc power available
1 Green Supervisor power status:
Ÿ On: Supervisor power present
Ÿ Off: No supervisor power
Chapter 1. Maintenance Analysis Procedures (MAPs)
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