19 common front panel pins, 1 pin strip, Jrex plus - dc user's guide – Kontron JRexplus-DC User Manual

Page 42: 1 harddisk led

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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.












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