Artesyn MITX-CORE-820 Installation and Use (July 2014) - Manual (Page 74)

Functional Description
MITX-CORE-820 Installation and Use (6806800M10H) 74
4.21 On Board LED Interface
There is only one LED on board (D5) to indicate that the system has experienced a catastrophic
error and cannot continue to operate. There are LED interfaces on the front header to indicate
the power LED and SATA HDD activity. The power LED is driven by the embedded controller.
There are two other LED headers to show charge status indication. One is used to indicate
charging and one is used to indicate insufficient battery.
4.22 Case Open Header
Case open header is reserved for customized application.
Table 4-24 Charge LED 1 (P31)
Pin Signal
1 +V3.3A_KBC
2 C_PWM
Table 4-25 Charge LED 2 (P34)
Pin Signal
1 +V3.3A_KBC
2 D_PWM
Table 4-26 Case Open Header (P27)
Pin Signal
1 SM_INTRUDER#
2 GND