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Figure 12
CS 1000M Large System
Engineering rules
Each system is defined using the following assumptions and general
engineering rules.
1
A system may be upgraded to the next larger system type as defined in
Communication Server 1000M and Meridian 1 Large System Upgrade
NTPs (NN43021-458 to 474).
2
When expanding to the next system type, the changes to the physical
configuration should be kept as simple as possible to reduce downtime
and installation costs.
3
A module column should be built up to the maximum of four modules
before moving to the next new column. In installations where the ceiling
does not allow four-high columns, the alternate configuration of
three-high tiers can be used.
4
Vertical routing of the internal signal cables should be done only on the
right side of a module.
5
The CPU modules must be on the bottom of a column or one level up for
proper cooling and reliability.
Preparing for installation
Large System Installation and Commissioning
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