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  9. 18.3 Before Maintenance on the BPU and PSUBP

18.3 Before Maintenance on the BPU and PSUBP


18.3 Before Maintenance on the BPU and PSUBP
When replacing the BPU, perform one of the maintenance procedures listed below.
Note that active/cold replacement and inactive/cold replacement are possible only in a multiple-BB configuration.


When replacing the PSUBP, perform one of the maintenance procedures listed below. Note that active/cold replacement and inactive/cold replacement are possible only in a multiple-BB configuration.


Caution - Before you handle any unit, be sure to wear a wrist strap to ground any static electricity. If you perform this procedure without a wrist strap, individual components or the overall system may be seriously damaged. For details, see "1.5 Precautions on Static Electricity."