IBM System p Series Cabling Manual page 138

Cabling the expansion units
__ Do you have an expansion unit?
Yes. For instructions on how to set up your expansion unit, click the following link. Do not plug the
v
expansion-unit power cord into the power outlet, as directed by the following link, until later in the checklist.
Expansion units
v No. Proceed to the next section, Connecting the external cables.
Connecting the external cables
__ If you are using any optional adapters (such as token ring or 8-port EIA-232), connect the cables to the
appropriate adapter connectors in the PCI slots of your machine.
Use the table in "Cables and adapters" on page 163 to connect the cables to the matching adapters on the back
of your server. Not all adapters are shown.
Note: If the cable did not come with your server, you will have to supply it.
Attaching devices using the system ports
__ If you have an IBM System p5 or eServer p5 server, the system ports on the back of the server are disabled
when your server is connected to an HMC.
__ If you have an IBM System i5 or eServer i5 server and 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 IBM (HACMP) cables to the system ports on the
back of the server is not supported.
Connecting the power cords
__ Power cords should be routed 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. See the following figure as an example:
132
System i and System p: Cabling your server