Hercules III User Manual Rev A.2
www.diamondsystems.com
Page
25
6.13
USB (J21, J22)
Connectors J21 (USB 0/1) and J22 (USB 2/3) provide four USB 2.0 ports. The connectors have identical pinouts
as described below.
J21/J22 USB Connectors
Key (pin cut)
1
2
Shield
USB 1/3 Power -
3
4
USB 0/2 Power -
USB1/3 D+
5
6
USB0/2 D+
USB1/3 D-
7
8
USB0/2 D-
USB1/3 VCC
9
10 USB0/2 VCC
Connectors J21 and J22 mate with Diamond Systems cable number 6981012, which provides two standard USB
type A jacks in a panel-mount housing.
Connector type:
Standard 2.54mm dual row straight pin header with 4mm posts and gold flash plating
6.14
LCD Panel, LVDS Interface (J24)
Connector J24 provides access to the internal LVDS LCD display drivers. Note that the LCD also requires the
backlight to be connected (see J28 below) to function correctly. The LCD panel power is jumper-selectable for
3.3V (default) or 5V. The Intel Atom E-Series CPU has maximum allowable LCD support of 1280 x 768.
Ground
1
2
Ground
LVDS clock-
3
4
LVDS clock+
5
6
Ground
7
8
Ground
LVDS data 0-
9
10 LVDS data 3+
LVDS data 0+ 11
12 LVDS data 3-
Ground 13
14 Ground
LVDS data 2- 15
16
LVDS data 2+ 17
18
J24 LCD Panel Connector