Appendix A: Connections; Serial Port Pin Outs; Serial Wiring Diagram - Sena HelloDevice Lite Series User Manual

Appendix A: Connections

A.1 Serial Port Pin Outs
The pin assignment of the LS100W DB9 connector is summarized in Table A-1. Each pin has a
function according to the serial communication type configuration.
A.2 Serial Wiring Diagram
1 2 3 4 5
Figure A-1. Pin layout of the DB-9 connector
Table A-1. Pin assignment of the DB-9 connector
Pin
1
2
3
4
5
6
7
8
9
HelloDevice
Tx(3)
Rx(2)
RTS(7)
CTS(8)
DTR(4)
DSR(6)
GND(5)
Figure A-2 RS232 wiring diagram
6 7 8 9
RS232
-
Rx
Tx
DTR
GND
DSR
RTS
CTS
-
Serial Device
RS232
44
Rx
Tx
CTS
RTS
DSR
DTR
GND