User Manual

26
7
VBUS
17
Ground
8
CC1
18
D-
9
SBU1
19
D+
10
SBU2
20
CC2
D - 20pin Common IO Header
The 20pin Common IO Header utilizes a “Molex Micro-Lock” or equivalent 1.25mm pitch
connector which contains signals for the following types of headers.
2x USB 2.0 4 Pin Headers
1x 8pin Internal Dual PWM Fan Header
1x 10pin Front Panel Header (Power LED and Button)
Molex Micro-Lock equivalent
Pin
Number
Signal
Pin
Number
Signal
1
USB_VBUS
2
GND
3
USB1_N
4
USB2_P
5
USB1_P
6
USB2_N
7
GND
8
USB_VBUS
9
GND
10
PWR_LED_P
11
PWR_BTN_N
12
PWR_LED_N
13
+12V_Slot
14
GND
15
FAN_PWM1
16
FAN_PWM2
17
FAN_TACH1
18
FAN_TACH2
19
GND
20
+12V_Slot
*Note* that a fan-out cable is included that adapts the 20pin Common IO cable assembly into the
individual headers listed below. Pin 13 and Pin 20 are powered by the +12V Slot power that is
produced by an Element compatible baseboard design. If not connected to a baseboard these
two FAN PWM headers capabilities are non-functional. Fan selection should use designs with less
than 1A of power required.
2x USB 2.0 4 pin Header
Molex part number 53398-0471, 1.25mm Pitch PicoBlade* Header, Surface Mount, Vertical, Lead-
Free, 4 Circuits.
USB 2.0 Header
Pin
Number
Pin Definition - Signal
1
+5V DC power
2
D – Data
3
D + Data
4
Ground
Internal 8pin Dual PWM Fan header
Molex part number 53398-0867, 1.25mm Pitch PicoBlade* Header, Surface Mount, Vertical, Lead-
Free, 8 circuits.