Com3 And Com4 Voltage Select Jumper - VIA Technologies EPIA-M920 User Manual

3.4. COM3 and COM4 Voltage Select Jumper

The voltage for COM3 and COM4 is controlled by the jumper labeled as
"J13". The voltage can be either +5V or +12V. +5V is the default setting. The
odd pin numbers correspond to COM3. The even pin numbers correspond to
COM4. The jumper settings are shown below.
Figure 37 Figure 37: COM : COM3 3 3 3 and COM and COM4 4 4 4 voltage select jumper
Figure Figure 37 37 : COM : COM and COM and COM
Table 33 Table 33: COM : COM3 3 3 3 and COM and COM4 4 4 4 voltage select jumper settings
Table Table 33 33 : COM : COM and COM and COM
voltage select jumper
voltage select jumper voltage select jumper
COM3 3 3 3 Setting COM Setting Pin 2 Pin 2
COM COM Setting Setting Pin 2 Pin 2
+5V (default) On
+12V Off
COM COM4 4 4 4 Setting Setting Pin 1 Pin 1
COM COM Setting Setting Pin 1 Pin 1
+5V (default) On
+12V Off
voltage select jumper settings
voltage select jumper settings voltage select jumper settings
EPIA EPIA- - - - M920 M920 User Manual
EPIA EPIA M920 M920
Pin 4 Pin 4 Pin 6 Pin 6
Pin 4 Pin 4 Pin 6 Pin 6
On Off
On On
Pin 3 Pin 3 Pin 5 Pin 5
Pin 3 Pin 3 Pin 5 Pin 5
On Off
On On
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