Selex ES SPA F567DHDE-HP Manual De Usuario
SELEX Communications
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38
July 2010
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
6
not
used
7 RTS
Ready To Send (from DTE)
8 CTS
Clear To Send (to DTE)
9
not
used
RS422
RS422 is a balanced serial interface for the transmission of point to point digital data. The advantage
of a balanced signal is the greater immunity to noise. The EIA describes RS422 as a DTE to DCE
interface for point-to-point connections. Description of the connector’s pins is from DTE to DCE. The
RBS acts as a DCE.
RS422 female pinout
(only on request)
PIN
Mean
1 GND Ground
2 TX + Data from DTE to DCE
3
2 TX + Data from DTE to DCE
3
not
used
4 RX + Data from DCE to DTE
5 GND Ground
6
5 GND Ground
6
not
used
7 TX -
Data from DTE to DCE
8
not
used
9 RX -
Data from DCE to DTE