X20 system modules • Compact CPUs
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X20 system User's Manual 3.10
4.9 Compact CPUs
The modular structure of the Compact CPUs allows the user to assemble a CPU that meets their unique power
supply and interface requirements.
Compact CPU base
X20 BB 2x
Compact CPU
X20 CP 02xx
Terminal block
X20 TB 12
Compact CPU
X20 PS 950x
Supply module
Figure 247: The four parts of the Compact CPU - Compact CPU, bus module, supply module, terminal block
Adaptable to individual requirements
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Embedded µP 25 with Ethernet on-board
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Embedded μP 16 with or without Ethernet on-board
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Bus module with RS232 connection
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Bus module with RS232 and CAN bus connections
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Supply module for Compact CPU, X2X Link bus supply and I/O
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RS232 interface connection
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CAN bus connection
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Without or without electrical isolation of the CPU/X2X Link supply
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12-pin terminal block
The battery-free CPU
To meet the high demands of the market, the Compact CPU was designed to run without a battery. This makes it
completely maintenance-free. The following features make operation without a buffer battery possible.
The real-time clock is buffered for approx. 1000 hours by a gold foil capacitor.
This FRAM stores its contents ferroelectrically. Unlike normal SRAM, this does not require a battery.
Compact design
Despite the sleek profile of only 37.5 mm, the CPU supply, the X2X Link bus supply, and the I/O module supply
are integrated in the CPU. No additional power modules are necessary.
