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SPACE PLANNING
To prepare for the installation of IBM data processing
equipment, determine where the machines will be
placed, and make certain that you can move the
equipment from the truck into the selected data
processing area. The following factors may help you
determine the location of the data processing area and
the best way to route system equipment:
• The size of the doorways and halls through which
each unit must be moved. (See Reducing Unit
Dimensions.)
• Elevator capacities and loading facilities that will be
used for receiving and moving the various units.
• The amount of site modification required to use each
proposed data processing area.
• The amount of electromagnetic interference in each
proposed data processing area. Avoid putting a
system in an area where high electromagnetic
interference can be radiated or conducted. These
areas may exist near a radio-frequency source, such
as radio transmitting towers (AM, FM, TV, and
two-way radio), radar (FAA and military), certain
industrial machines (RF induction heaters, RF arc
welders, and insulation testers), time clocks, certain
electrical heating systems, and high-energy power
lines. Should any of these conditions exist, reassess
your plans to see if any special installation or product
considerations are needed for normal system
operation and maintenance. Your IBM installation
support representative can help you.
Floor Plans
Consider these factors as you make your floor plans:
• Space for people to work efficiently.
• Space for the system unit, printers, work stations,
desks, files, and all miscellaneous equipment.
• Space for servicing the equipment.
Chapter 2. Physical Planning Considerations
• Security areas and methods.
• Storage space for supplies and documentation.
• Aisle space.
• Cable length and cable routing.
• Cable protection, if required. Proper planning will
ensure that traffic cannot damage a cable and that
workers cannot trip on cables. If cables must cross a
line of traffic, you may want to build a ramp for
traffic across the cables, run the cables under a
raised floor, or eliminate the risk in some other way.
(Local codes may dictate the method used.) If you
decide to use a raised floor, it can be made of steel,
aluminum, or fire-resistant wood (see Air
Temperature and Humidity Considerations in
Chapter 6). A free-access raised floor is best. Build
the tiiSed floor high enough to accommodate cables,
power distribution, and so on. A floor height
between 100 and 300 mm (4 and 12 in.) usually is
acceptable.
• Space for future expansion.
• Location of electrical outlets, communications lines,
and work station cables.
• Maximum cable lengths. (The cable Summary Chart
in Chapter 4 specifies maximum cable lengths, which
dictate the maximum distances between the system
unit and its cable-connected units.)
• The weights of system components and other
equipment in the data processing area.
Weights of the various system components should
not exceed the floor-loading capacity of most
buildings; however, if it seems that the floor-loading
capacity of an area might be exceeded, consult a
structural engineer.
Your IBM installation support representative can provide
guidance about service clearances, operating
convenience service access, data security, and safety.
Physical Planning Considerations
2-1
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