180 Upgrade and Maintenance Manual RX1330 M3
8.1 Basic information
Base units with a standard PSU are supplied with four fan modules without
redundancy.
V CAUTION!
In the configuration with four fan modules, defective system fans have to
be replaced immediately.
Base units with a redundant PSU are supplied with five fan modules in a 1 of 5
redundancy. In other words, if one of the five fan modules fails, the system will
operate without any problem.
8.1.1 Numbering of the fan modules
Figure 96: Numbering of the fan modules
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