User Manual

2-11
2.5 Jumpers
1. COM Ring/+5V/+12V selection jumper (6-pin COM1_SEL)
Setting Pins
+12V 1-2
+5V 3-4
RI (Default) 5-6
RI
(Default)
+5V+12V
COM1_SEL
1
2
3
4
5
6
Connector type
HEADER 2x3p, 2.54mm pitch, S/T
2. WDT Enable jumper (2-pin WDT_EN)
A watchdog timer is an electronic timer that is used to detect and recover
from computer malfunctions. The HW WDT (watchdog timer) Enable jumper
allows the HW watchdog resets the system automatically even when the
system crashes.
WDT_EN
PIN 1
By default, this jumper is set to HW WDT enabled with a jumper cap attached.
Connector type
HEADER 1x2p, 2.54mm pitch, S/T