引脚
Pin
信号名称
Signal
引脚
Pin
信号名称
Signal
1
GND
2
GND
3
电源正极
Power+
4
电源正极
power-
引脚
Pin
信号名称
Signal
引脚
Pin
信号名称
Signal
1
GND
2
电源正极
SYS_RST_IN----
系统复位
; FORCE_RECOVERY
为刷机键正极
Note
：
Uart1 & UART2 are converted to 3.3V logic level by carrier level conversion circuit;
I2s1 is converted to 3.3V logic level through the board level conversion circuit;
Spi0 is converted to 3.3V logic level through the board level conversion circuit;
GPIO11_ 3V3, SPI1_ CS1_ 3v32 pins are all 3.3V logic levels;
Note
：
The following interfaces are mainly used to provide external switch, system reset
button and system status LED indication for 1U chassis in industrial control field.
GPU_ Led: negative pole of system temperature indicator;
FNA_ Led --- negative pole of fan running indicator light;
STAND_ Led --- negative pole of system normal working indicator;
POWER_ Led --- system power supply normal working indicator negative
PWR_ BTN --- system startup positive pole;
Acok is short circuited to the ground --- the system turns off the power on automatic start-
up function;
SYS_ RST_ In --- system reset; force_ Recovery is the positive pole of the brush key;
3V Lithium Battery (W17)
RTC
后备电池，系统断电后，可以存储系统的时钟持续
100
天正常工作。
Note:
RTC Spare battery, After power failure of the system,It can keep the clock of the storage system
working normally for 100 days.
电源
LED (LED)
插入电源正常开机后，电源
LED
灯亮（红色）
After power on
，
Power LED Light up (red)
DC
电源接口
(W18)
注：电源输入范围：直流
+13V(8A)~+20V(5A)
Note
：
Power input range: DC + 13V (8A) ~ + 20V (5A)
DC
电源接口
(W19)
注：电源输入范围：直流
+13V(8A)~+20V(5A)