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Appendix B Components B-27
FIGURE B-22 AC Section (ACSTPH_A)
■ The ACSTPH_B is a unit that receives three-phase (star) power for the SPARC
Enterprise M8000 server three-phase dual power feed cabinet and switches
between three-phase and single-phase. This unit uses two power cables to receive
power, switch from three-phase to single-phase current internally, and distribute
AC power to 18 PSUs.
FIGURE B-23 AC Section (ACSTPH_B)
■ The ACSTPH_C is a unit that receives three-phase (delta) power for the SPARC
Enterprise M9000 server three-phase dual power feed cabinet and switches
between three-phase and single-phase. This unit uses two power cables to receive
power, switch from three-phase to single-phase current internally, and distribute
AC power to 30 PSUs.