66
Installation
Connecting power cords to the PSU
IMPORTANT:
The 4U106 enclosure is fitted with two redundant PSUs. Both power cords must be connected to at least
two separate and independent power supplies to ensure redundancy.
•
shows power connection from a single-core PSU to a PDU using C19 connectors. For the sake of simplicity,
we have shown power cables connections without the use of CMA and its brackets.
•
The C20 plug on the PSU connects to the C19 receptacle of the power cord. The C20 plug on the power cord connects
to the C19 receptacle in the PDU.
CAUTION:
Power connection concerns:
•
Never connect the power cord to the PSU before installing the PSU in the system.
•
Always remove the power connections
before
you remove the PSU from the enclosure.
•
Whether standard (single-lead) or bifurcated (Y-lead), power cords must only be connected to a supply range of
200–240VAC as indicated on each PSU’s hazardous voltage warning label.
Figure 58 AC power cord connection from PDU to PSU (simplified view)
Figure 59 Actual photo of enclosure Cables routed through CMA
Power Distribution Units (AC UPS shown)
C1
4
C14
C19
C1
4
C14
C19
C19
C1
9