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X502U Reference Manual V3.2
10
2.5 Power input terminal
Function
Power input terminal
marking
Power Input
Type
SF1213/S3
Functional
description
Input voltage range
:
+7V
至
+19V
。
Pin
Signal
Pin
Signal
1
VIN+
2
VIN-
3
NC
2.6 Power switch button
Function
Power switch
marking
On/Off
2.7 CAN/Audio connectors
Function
CAN /Audio I/O connectors
marking
CAN/Audio
Type
DB9 interface
Pin define
Pin 1 location: The green frame on the right.
Pin
Signal
Pin
Signal
1
CAN0H
2
CAN0L
3
GND
4
CAN1H
5
CAN1L
6
SCS1
7
MISO1
8
MOSI1
9
CLK1
2.8 Serial connector
Function
Serial port
marking
Serial
Type
DB9 interface
Pin define
Pin
Signal
Pin
Signal
1
UART0_TX
2
UART0_RX