Placement Considerations Due To Data Cable Lengths - HP D5970A - NetServer - LCII Manual

Chapter 3
This is a summary of key cabling guidelines. For complete details, see the HP
rack configuration tools located on the worldwide web.
Key guidelines help you ensure that:
component placement from rack to rack is consistent
the cables supplied with components will reach between them as intended
there is provision for a "cable management loop" so that the HP NetServer
can be extended for service by trained personnel
cables are neat, and routed in a workable manner in cases where supplied
cables are not long enough for a cable management loop (which may
include those supplied with the video monitor and the UPS)
power supplies and distribution units supplied with the rack assembly are
correctly installed to meet requirements for power, current, and number of
receptacles

Placement Considerations Due to Data Cable Lengths

Data cable lengths limit how far components can be located away from
one another. Components can be slightly nearer to or further from the
server. This depends upon whether the cables are routed to the left or to
the right side of the rack after being connected with the server. And this
in turn depends on Cable Guide placement.
Cable Guide placement is determined in turn by where the doors are
hinged. Doors can be mounted to swing from either side of the rack.
Locate the Cable Guide on the same side of the rack as the door hinge
hardware. Locate the PDU opposite the cable guide (if mounted
vertically), on the same side as the door latch hardware. If mounted
horizontally, PDU location does not make a significant difference to cable
routing.
All data connections to devices (except the monitor) are made to the
server using 98 inch (2.5 meter) cables.
The monitor is connected to the video port of the server (or alternately to
the HP Console Switch) with a 72 inch (1.8 m) cable.
The mounting distances provided in rack layouts assume cables between
the servers and connected devices provide for cable management loop (for
the LXr 8000).
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Cabling Reference Information