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RTSS-X102 Reference Manual V1.
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2.10 USB2.0 Connector
Function
USB2.0 Connector
Marking
USB2.0 x 2
Type
Double-layer USB Type-A 2.0 interface
Pin define
Layer
Upper layer
Type
USB 2.0
Pin
Signal
Pin
Signal
1
VBUS
2
USB 2.0 D-
3
USB 2.0 D+
4
GND
Layer
Upper layer
Type
USB 2.0
Pin
Signal
Pin
Signal
1
VBUS
2
USB 2.0 D-
3
USB 2.0 D+
4
GND
2.11 Power interface
Function
Power interface
Marking
DC IN
Pin define
Input voltage range:
+9v~+20v
It is strictly forbidden to connect the cable with live voltage!
Pin
Signal
Pin
Signal
1
GND
2
VCC
3
GND
4
VCC
2.12 Debug serial port
Function
Debug serial port
Marking
COM1
Type
DB9
Pin define
Pin
Signal
Pin
Signal
1
NC
6
NC
2
RXD
7
NC
3
TXD
8
NC
4
NC
9
NC
5
GND
The mapping file in the /dev directory corresponding to the serial
port is: ttyTCU0