Design-In - Electrical Aspects
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COMX Communication Modules | Design Guide
DOC100901DG18EN | Revision 18 | English | 2013-12 | Released | Public
© Hilscher, 2002-2013
3.4 Diagnostic Interface
3.4.1
Diagnostic Interface RS232C
The signals UART0_TXD and UART0_RXD are transmit and receive signals to use with an
RS232C interface for diagnostic purpose.
Over this diagnostic line you can download a new firmware, configuration files or make only diag-
nostic during running communication.
The following schematic shows an example for the RS232C interface necessary on the host board.
The module has not integrated drivers.
Figure 16: RS232C Interface Circuit for the Diagnostic Interface
The diagnostic interface is galvanically coupled (not potential free).