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Troubleshooting Tools
Product Manual 31
3.2 Signal description, RS 232 and RS 422
RS 232
Figure 2 Signal description for RS 232.
The transmission pattern can be single or bursts of 10 bit words, with one start bit “0”,
eight data bits (MSB first) and lastly one stop bit “1”.
Signal Explanation
TXD Transmit Data
RXD Receive Data
DSR Data Set Ready
DTR Data Terminal Ready
CTS Clear To Send
RTS Request To Send
Start bit (“0”)
Stop bit (“1”)
f=9600/19200 baudByte 1 Byte 2
10 V
0 V