CON1 (2 x 6 Pins)

CON2 (RJ45)

Pin

Function

Pin

Function

1
2
3
4
5
6
7
8
9
10
11
12

+5V
GND
RXA (Input)
TXA (Output)
RTSA (Output)
DTRA (Output)
CTSA (Input)
DCDA (Input)
Reserved
RESET, pulled low
RXB (Input - optional)
TXB (Output - optional)

1
2
3
4
5
6
7
8

TX+
TX-
Rx+
NC
NC
RX-
NC
NC

CON3
(2 x 2 Pins in place of RJ45)

CON4
(2 x 4 Pins in place of LEDs)

Pin

Function

Pin

Function

1
2
3
4

TX+
TX-
RX+
RX-

1
2
3
4
5
6
7
8

+5V
+5V
LED2
LED1
+5V
+5V
LED3
LED "good link"