Chapter 2 Installation 29
Pin Signal Pin Signal
1 TX-
]
Data-
[
1 TX-
4 RX- 4 RX-
2 TX+
]
Data+
[
2 TX+
3 RX+ 3 RX+
5 Ground 5 Ground
Serial ports IRQ select (JP9)
You can select the serial ports' IRQs by setting JP9 as follows:
Serial ports IRQ selection (JP9)
COMA COMB JP9 setting
IRQ3 IRQ4
IRQ4 IRQ3
