SENA Parani-SD200L - Manual (Page 26)

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Appendix A: Connections
A.1. Serial Port Pin Outs
Parani-SD200L is a DCE device compatible with the RS232 standard, a DB9 female interface.
Figure A-1 Pin layout of the DB-9 female connector
Table A-1. Pin assignment of the DB-9 female connector
Pin # Signal Direction Description
1 DCD Output Bluetooth Connect Detect
2 TxD Output Transmitted Data
3 RxD Input Received Data
4 DSR Input DTE Ready
5 GND - Signal Ground
6 DTR Output DCE Ready
7 CTS Input Clear to Send
8 RTS Output Request to Send
9 Vcc Input (5V~12V)
A.2. Serial Wiring Diagram