IBM System p Series Cabling Manual page 21

Connecting the external cables
__ Use the table in "Cables and adapters" on page 163 to connect the cables to the matching adapters on the back
of your server. If the cable did not come with your server, you will have to supply it.
If you do not have any external cables to connect to the adapters on the back of your server or expansion unit,
continue with the next section.
Routing the cables through the cable-management arm
__ Is your server installed in a rack?
v No. Proceed to the next section.
v Yes. Do the following:
__ Put the system into the service position. See Place the rack-mounted system or expansion unit in the
service position.
__ Route the cables through the hooks that are located along the cable-management arm and secure them
with the straps that are provided, as shown here:
__ After attaching the cables to the cable-management arm, go to the front of the rack and move the system
drawer in and out. Observe the cables and cable-management-arm movement to verify that the cables are
not binding.
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Cabling your server