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18
3.6 USB Port Connector
The ROCKY-3785EVG provides two USB ports.
•
CN6 :
1.
VCC
2.
GROUND
3.
DATA-
4.
DATA+
5.
DATA+
6.
DATA-
7.
GROUND
8.
VCC
3.7 IrDA Infrared Interface Port
The ROCKY-3785EVG built-in a IrDA port which support Serial
Infrared (SIR) or Amplitude Shift Keyed IR(ASKIR) interface.
When use the IrDA port have to set SIR or ASKIR model in the
BIOS’s Peripheral Setup’s COM 2. Then the normal RS-232 COM
2 will be disabled.
•
CN4 : IrDA connector
PIN NO.
DESCRIPTION
1 VCC5V
2 N/C
3 IR-RX
4 Ground
5 IR-TX
1
2
3
4
5
7
1
8
2