2.3.2 COM1 Data / Power Mode Selection (JP6)
The COM1 port have +5V or +12V level power capability on DCD and
+5V or +12V level power capability for RI, depending on the JP6
setting.
Function
COM1 Pin 1 is +12V level
COM1 Pin 1 is +5V level
COM1 Pin1 is DCD
(Default)
COM1 Pin 8 is +12V level
COM1 Pin 8 is +5V level
COM1 Pin 8 is RI
(Default)
JUMPERS AND CONNECTORS
SHB212 PICMG1.3 Half-Size SBC User's Manual
Jumper Setting
11
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