Hvac/Hvdc Power Supply Assembly - IBM SAN512B-6 Installation, Service And User Manual

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| Figure 48. HVAC/HVDC power supply assembly
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1. Fan 1
2. Fan 2
3. Handle
4. Status LED
5. HVAC/HVDC power cable receptacle
6. Airflow label
7. Captive screw
8. Power cable restraint cover
Consider the following information when connecting AC power:
v The SAN256B-6 Director has two power supplies installed. Use of the
high-voltage line (200 to 277 VAC) is highly recommended because of better
power conversion efficiency. Refer to "Power Supply Requirements" in
Appendix B, "Product specifications," on page 235 for minimum power supplies
required for AC low and high voltage line operation, redundancy in case of
power supply failure, and other specifications.
v Redundant AC primary power connections ensure high availability. Each power
supply has its own connector, so two primary power connections are required
for the SAN256B-6 Director for optimum efficiency and redundancy.
Power supplies can be removed and replaced without special tools. If you are
replacing one power supply in a configuration with N+1 or greater redundancy,
the director can continue operating during the replacement if procedures in this
guide are followed. Otherwise, installed blades may power off. Refer to "Power
supply requirements" inAppendix B, "Product specifications," on page 235 for
more information about power supply redundancy.
Power cords are available from Brocade. Power cords are 6 m (19.68 ft.) long and
contain three colored 14 AWG unterminated wires which are described in the
following table:
Chapter 11. Power Supply Assemblies
165