IBM System p Series Cabling Manual page 30

Attaching devices by using the system ports
__ If you have an IBM System i5 or eServer i5 server and you are connecting it to an uninterruptible power supply,
the serial uninterruptible power supply conversion cable is required. See "Serial uninterruptible power supply
conversion cable" on page 162 for instructions. Do not plug the uninterruptible-power-supply power cord into
the outlet and do not start your server.
Note: The attachment of high availability cluster multiprocessing (HACMP) cables to the system ports on the back of
the server is not supported.
Installing the PCI Cryptographic Coprocessor card
__ Do you have a PCI Cryptographic Coprocessor card?
Yes. Install it now using the PCI-X Cryptographic Coprocessor instructions. This card was shipped in a
v
separate box. Return here after the card is installed.
v No. Proceed to the next section, Connecting the power cords.
Connecting the power cords
__ You should route the power cords through the retention rings or under the retention brackets that are provided
to prevent the power cords from becoming unplugged unexpectedly.
__ If your server is equipped with a retention ring, route the power cord through the ring before you plug it
into the back of the server, as shown here:
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System i and System p: Cabling your server