Spectra MB720 User Manual page 23

Hard Disk Drive LED Connector: Pins 10 and 20
This connector connects to the hard drive activity LED on
control panel. This LED will flash when the HDD is being
accessed.
J2: LVDS Panel Interface (used with ID380 Card, not in A1
version)
J3, J4: USB Connector (USB3/USB4, USB5/USB6)
The MB720 supports USB 2.0 ports.
Signal Name
Vcc
USB0-
USB0+
Ground
J7: IrDA Connector
J7 is used for an optional IrDA connector for wireless communication.
J8: Digital 4-in 4-out I/O Connector
Signal Name
Ground
MB720 User's Manual
INSTALLATIONS
Pin # Signal Name
10 HDD Active
20
Pin Pin Signal Name
1 5 Ground
2 6 USB1+
3 7 USB1-
4 8
Pin # Signal Name
1 +5V
2 No connect
3 Ir RX
4 Ground
5 Ir TX
Pin Pin Signal Name
1 2
Out3 3 4
Out2 5 6
IN3 7 8
IN2 9 10
5V
Vcc
Vcc
Out1
Out0
IN1
IN0
19