IBM RS/6000 SP, Maintenance Information

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MAP 0530: Switch Assembly Power
MAP 0530: Switch Assembly Power
Note: Refer to "Service Position Procedures" in IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures for placing or removing the high-performance switch in/from
service position.
001
– From the system monitor on the control workstation or switch assembly, check the Power (green) LED
for this switch assembly.
The definition of the Power (green) LED is as follows:
Power (Green)
Off No 48 V dc power available at switch assembly.
Flashing Power available at switch assembly, but switch logic is Off.
On Power available at switch assembly, and logic is On.
Is Power (green) LED Off?
Yes No
002
Switch assembly getting 48 V dc power.
Is Power (green) LED flashing?
Yes No
003
Power (green) LED is On, indicating no problem with power supply.
– Verify that you have the proper switch assembly, then restart “MAP 0510: Switch
Assembly” on page 1-294.
– If this is the proper switch assembly, call the next level of support.
004
Switch assembly is getting power.
– Power up switch logic from the virtual front panel on the control workstation.
Does Power (green) LED light and stay lit?
Yes No
005
Switch assembly not responding to the command.
– Go to “MAP 0110: Supervisor Subsystem” on page 1-10.
006
Switch logic getting power.
– Go to Step 101 on page 1-350.
007
– Check circuit breaker at front of switch assembly. Put this circuit breaker in the On (‘1’) position if it is
not already.
(Step 007 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-313