User manual
Chapter 2 Installation 
- 18 -  EC7-1817LNAR 
J5(LAN1) 
LILED 
(Dual-Color: O/G)
LAN Speed 
Indicator 
ACTLED 
(Green) 
LAN Activity 
Status Indicator 
Green 1000Mbps 
Blink Data Transmitting  Orange  100Mbps 
Off  No Data to Transmit Off 10Mbps 
Switch 
The board provides one PWR Button switch (SW1) and one reset switch (SW2). 
GPIO Connector 
Pin  Signal Name Pin  Signal Name
1 GPIO1 2 GPIO5 
3 GPIO2 4 GPIO6 
5 GPIO3 6 GPIO7 
7 GPIO4 8 GPIO8 
GPIO1 
(Pitch: 2.0mm)
9 GND 10 NC 
Note: the pins for GPIO are bi-directional signals. To facilitate test and 
application, the factory default value is that Pin1, 3, 5 and 7 are for TTL input 
while Pin2, 4, 6 and 8 are for CMOS output. The factory default status is high 
level while the voltage range for IO signals is 0-5V. 
Fan Connector 
The board provides one 1x4Pin CPU fan (CPUFAN1, Pitch: 2.54mm) and one 1x3Pin 
system fan (SYSFAN1, Pitch: 2.54mm). Pay attention to the following three issues 
when using the fan socket: 
  The current for fan shall not exceed 700mA (12V); 










