Manual for Q3XX0P MINI Motherboard
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QOTOM TECHNOLOGY LIMITED
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9.
Serial port headers (COM2)
COM2, PIN definition refer to NO.8.
A.
RS232 Function
When item No. 27 & No. 28 choose to RS232, COM2 interface definition please refer to Item No.
8.
B.
RS485 Function
When item No. 27 & No. 28 choose to RS2485, COM2 interface definition as below:
10.
Serial port headers (COM3)
COM3, PIN definition refer to NO.8.
11.
Serial port headers (COM4)
COM4, PIN definition refer to NO.8.
12.
Serial port headers (COM5)
COM5, PIN definition refer to NO.8.
13.
Serial port headers (COM6)
COM6, PIN definition refer to NO.8.
14.
HDD led
Red color.
15.
Power led
Green color.
16.
Power Switch
Power switch button
17.
SATA Power Connector
Special power interface, please ask for matching wire from the distributor.
When Power adaptor is 12V, 3.5" HDD can be supported.
Pin#
Signal
1
RS485-
2
RS485+
3-9
n/c
