Power cord connection 71
Power cord connection
Connect a power cord from each PCM or PSU on the enclosure rear panel to the PDU (power distribution unit) as
shown in the illustrations below.
Figure 58 Typical AC power cord connection from PDU to PCM (2U)
Figure 59 Typical AC power cord connection from PDU to PSU (D3284)
IMPORTANT: When more than one PCM (2U) or PSU (5U) is fitted, all power cords must be connected to at
least two separate and independent power supplies to ensure redundancy. When the storage system is ready for
operation, ensure that each PCM or PSU power switch is set to the On position. See also “Powering on/powering
off” (page 92).
CAUTION: Power connection concerns:
• Always remove the power connections before you remove the PCM (2U) or PSU (5U) from the enclosure.
•
When bifurcated power cords (Y leads) are used, these cords must only be connected to a supply range of
200–240V
AC.
Testing enclosure connections
See “Powering on/powering off” (page 92). Once the power-on sequence succeeds, the storage system is ready to
be connected as described in “Connecting the enclosure to hosts” (page 72).
Controller Enclosure
Power Distribution Units (AC UPS shown)
Expansion Enclosure
Power Distribution Units (AC UPS shown)
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