IBM 9306, Hardware Maintenance Manual

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DANGER
v Plug power cords from devices in the rack cabinet into electrical outlets
that are located near the rack cabinet and are easily accessible.
v Each rack cabinet might have more than one power cord. Be sure to
disconnect all power cords in the rack cabinet before servicing any
device in the rack cabinet.
v
Install an emergency-power-off switch if more than one power device
(power distribution unit or uninterruptible power supply) is installed in
the same rack cabinet.
v Connect all devices installed in a rack cabinet to power devices installed
in the same rack cabinet. Do not plug a power cord from a device
installed in one rack cabinet into a power device installed in a different
rack cabinet.
v Do not run cables in front of or behind other devices that will prevent service
access to those devices.
v
Do not bend fiber-optic cable beyond its limited specifications.
v Label all cables so that they are clearly distinguishable from each other.
v
When installing devices mounted on slide rails, such as servers:
– Run the cables neatly along equipment cable-management arms and secure
the cables to the arms using provided cable straps.
– Leave enough extra cable so that the device can fully extend without straining
the cables.
– Secure the cables so that the device can retract without pinching or cutting
the cables.
v When installing devices mounted on fixed rails:
– Run the cables neatly along the posts or side rails in the rack cabinet out of
the way of other installed devices.
– Secure the cables with the provided cable straps.
v
Ensure that the cables cannot be pinched or cut by the rack cabinet rear door or
other devices.
v Run internal cables that connect devices in adjoining rack cabinets through the
large openings provided in the rear of the rack cabinet.
v Run external cables through the bottom of the rack cabinet or through the
removable section in the top of the rack cabinet.
Cable-management brackets
If your rack cabinet comes with cable-management brackets, you must remove the
indicated screw before you can remove a filler panel from the rack cabinet. You can
install the bracket FRU on either type of rack cabinet. If you install these brackets
on a rack cabinet that did not originally come with them, you cannot use a screw to
secure the filler panels unless you also install the new filler panels.
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Hardware Maintenance Manual: IBM PC Server/Enterprise Racks Types 9306, 9308