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EPIA
EPIA
EPIA
EPIA-
--
-M720
M720
M720
M720 User Manual
User Manual
User Manual
User Manual
37
3.2.
COM2 Voltage Select Jumper
The additional COM port (available through the onboard COM2 pin header,
see page 24) can support both +5V and +12V. The COM2 voltage select pin
jumper is a selector to determine the input voltage of COM2 pin header
connector. The voltage can be 5V or +12V. +5V is the default setting.
The pin jumper is labeled as “J6”. The jumper settings are shown below.
1
Figure
Figure
Figure
Figure 31
31
31
31: COM
: COM
: COM
: COM2
2
2
2 voltage select jumper
voltage select jumper
voltage select jumper
voltage select jumper
Setting
Setting
Setting
Setting
Pin 1
Pin 1
Pin 1
Pin 1
Pin 2
Pin 2
Pin 2
Pin 2
Pin 3
Pin 3
Pin 3
Pin 3
+5V
On
On
Off
+12V
Off
On
On
Table
Table
Table
Table 27
27
27
27: COM
: COM
: COM
: COM2
2
2
2 voltage select jumper settings
voltage select jumper settings
voltage select jumper settings
voltage select jumper settings
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