A-3
Themis Computer
Connector Pinouts
Serial Ports
A.3
Serial Ports
The RES-22DCX supports two
male
DB9 serial port connectors on the rear I/O
panel (see
Figure A-2
)—TTYA (COM1) and an
optional
TTYB (COM2). COM1
and COM2 pinouts are listed in
Table A-3
, page A-3.
Figure A-2.
DB9 Serial Connector
Table A-3.
DB9 Serial Connector Pinout
Pin
Signal Name
Pin
Signal Name
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
Содержание RES-22DCX
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