Manual for Q1900G4 MINI Motherboard
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QOTOM TECHNOLOGY LIMITED
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4.
USB Ports
3*USB 2.0 ports, 1*USB 3.0 port
5.
VGA Connector
Standard VGA port
6.
Extended Pin for External Panel (Optional)
For accessing the power switch, power LED, HDD LED, reset switch.
Pin spacing
：
2.54mm
7.
Power led
POWER: Green color.
8.
Power Switch
Power switch button
9.
CPU Fan Header
For connecting fan of the CPU.
10.
Serial port header
(Optional)
COM1,
Pin#
Signal
Define
Note
1
DCD
Data Carrier Detect
2
RXD
Received Data
3
TXD
Transmitted Data
Pin#
Signal
1
GND
2
+5V
3
Detection
4
Control
