19 common front panel pins, 1 pin strip, Jrex plus - dc user's guide – Kontron JRexplus-DC User Manual
Page 42: 1 harddisk led
KTD-S0008-F
Page 37
Common Front Panel Pins
JRexplus-DC User's Guide
+3.3V
1k0
Conne
ctor
+
-
Harddisk LED
19 Common Front Panel Pins
The Common Front Panel provides some special functions (e.g. reset button and speaker).
19.1 Pin Strip
The Common Front Panel is available through the pin strip J37 (8 pins).
Header
Pin
Signal Name
Function
1
RST_BTN+
Reset button (positive)
2
SPKR+
Speaker (positive)
3
RST_BTN-
Reset button (negative)
4
N.C.
Not connected
5
HDD_LED+
Harddisk LED (positive)
6
N.C.
Not connected
7
HDD_LED-
Harddisk LED (negative)
1
7
2
8
8
SPKR-
Speaker (negative)
The reset signal of the JRexplus-DC is edge-controlled. This means the board can not be hold within the
reset.
18.1.1 Harddisk
LED
The following picture illustrates the onboard wiring.