Product specifications

Appendix A Hardware Units CI853 and TP853 – RS-232C Interface
3BSE036351-510 A 293
Functional Block Diagram
Figure 71. Block Diagram – CI853
DC/DC
Bus interface
Microprocessor with
FPROM, SRAM,
+5 V
+24 V
Communication Extension Unit
Communication Extension Base plate
Communication lines
Communication
Extension Bus
Communication
Extension Bus
Dual Port RWM and
two serial interfaces
converter