DTK PRM-23I, User Manual

Page: 18 / 40

Chapter 3
12
3.1 J1 – MULTIPLE FUNCTION JUMPER
J1 is a front panel multi-function jumper includes speaker, reset, keylock, harddisk,
LED, ACPI (suspend) LED and power button (suspend switch). The pin definition
is following figure.
Fig. 4 Multiple Function Jumper
3.2 J2 – USB HUB EXTENSION FOR USB2 & 3
If the Winbond USB HUB chipset exist on board, the USB1 to USB4 will be
replaced with the HUB supported USB ports, and the USB1 comes out from J20,
USB2 & 3 come out from J2, and USB4 comes out form J3.
3.3 J3 – USB HUB EXTENSION FOR USB4
The additional USB port supported.
3.4 J4 – SYSTEM FAN CONNECTOR
J4 is a three-pin connector, which is used to connect with the System Fan Power
cable. It’s controlled by Hardware Doctor, and stopped in suspend mode.