IBM Rack Power Distribution Unit Installation And Maintenance Manual page 18

4. If you have a second Rack PDU to install, install it on the 1U-mounting bracket
5. Determine the 1U space within the rack cabinet where you are going to install the
6. If you install the Rack PDUs in the rear of the rack cabinet, you must install the 1U
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IBM Distributed Power Interconnect Rack Power Distribution Unit:Installation and Maintenance Guide
with two M3x5 screws that come with the second Rack PDU.
Note: You can install Rack and Front-end PDUs on the same 1U-mounting
bracket.
Rack PDUs; then, while one person holds the 1U-mounting bracket in place,
attach the bracket to the front or the rear of the rack cabinet with four M6 screws
and clip nuts or cage nuts that come with the Rack PDU.
Note: Leave enough space to allow you to connect and disconnect power cables.
blank filler panel on the front of the rack cabinet at the same U level as the 1U-
mounting bracket. Use two M6 screws that come with the Rack PDU.