Mechanical and electrical configuration
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X20 system User's Manual 3.10
3.24 Power supply module power loss
3.24.1 General information
Power supply modules are used to provide power to an X20 system. The power supply modules are either a
separate module or part of a CPU or a bus controller.
The power consumed by the power supply modules is passed on to the X20 system, taking into consideration
its own power requirements and the effectiveness of the power supplies. The data sheets for the power supply
modules list their own power requirements and power loss (as maximum power consumption). With the formulas
in the following sections, the exact power consumption can also be calculated. This calculation is explained using
an example.
The following image shows where the power supply module uses power for its own requirements. It also shows
where the power supply module uses power to supply the system and where power loss occurs.
Power consumption - X2X Link
Power consumption - I/O
Power consumption - Bus
Figure 44: Power supply modules draw power at up to three supply points
Summary of Contents for X20 System
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