User's Manual

Selex ES S.p.A.
Information contained in this document may not be used, applied or reproduced for any purpose unless agreed
by Selex ES S.p.A. in writing
42
RS232
RS232 standards are defined by EIA/TIA (Electronic Industries Alliance /Telecommunications Industry
Association). RS232 defines both the physical and electrical characteristics of the interface. RS232 is
an Active LOW voltage driven interface and operates at +12V to -12V. RS232 is a serial interface for
the transmission of point to point digital data. Description of the connector’s pins is from DTE to DCE.
The RBS acts as a DCE.
RS232 female pinout
PIN
Mean
1
not used
2
RX
Data from DCE to DTE
3
TX
Data from DTE to DCE
4
not used
5
GND
Ground
6
not used
7
RTS
Ready To Send (from DTE)
8
CTS
Clear To Send (to DTE)
9
not used
Complete RS232 female pinout (only on request)
PIN
Mean
1
not used
2
RX
Data from DCE to DTE
3
TX
Data from DTE to DCE
4
DTR
Data Terminal Ready (from DTE)
5
GND
Ground
6
DSR
Data Set Ready (to DTE)
7
RTS
Ready To Send (from DTE)
8
CTS
Clear To Send (to DTE)
9
not used