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EPIA
EPIA
EPIA
EPIA-
--
-M860
M860
M860
M860 User Manual
User Manual
User Manual
User Manual
24
2.2.11.
COM Pin Headers
There are a total of three COM pin headers on the mainboard
1
. Each COM pin
header supports the RS-232 standard. The pin headers are labeled as “COM2”,
“COM3”, and “COM4”. All of the COM pin headers can s5V or +12V.
See page 32 for details on setting the voltage. The pinout of the COM pin
headers are shown below.
Figure
Figure
Figure
Figure 23
23
23
23: COM pin headers
: COM pin headers
: COM pin headers
: COM pin headers
Pin
Pin
Pin
Pin
Signal
Signal
Signal
Signal
Pin
Pin
Pin
Pin
Signal
Signal
Signal
Signal
1
COM_DCD
2
COM_RXD
3
COM_TXD
4
COM_DTR
5
Ground
6
COM_DSR
7
COM_RTS
8
COM_CTS
9
COM_RI
10
—
Table
Table
Table
Table 17
17
17
17: COM pin header pinout
: COM pin header pinout
: COM pin header pinout
: COM pin header pinout
Note:
Note:
Note:
Note:
1. Two additional COM pin headers can be added as a manufacturing option. The additional COM pin
headers will be labeled as “COM5” and “COM6”.
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