COM2 : 14-Pin Serial Port Connector
PIN DESCRIPTION
PIN
DESCRIPTION
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI
9
GND
10
NC
11
TX+
12
TX-
13
RX+
14
RX-
COM3,4 : 10-Pin Serial Port Connector
PIN DESCRIPTION
PIN
DESCRIPTION
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI
9
GND
10
NC
DIO1: 10-pin Digital I/O Connector
PIN DESCRIPTION
PIN
DESCRIPTION
1
GND
2
+5V
3
INPUT0
4
OUTPUT0
5
INPUT1
6
OUTPUT1
7
INPUT2
8
OUTPUT2
9
INPUT3
10
OUTPUT3
AUDIO2 = Audio Connector.
1.
Port1_L
2.
GND
3.
Port1_R
4.
PRESENCE
5.
Port2_R
6.
SENSE1_RETUR
7.
SENSE_SEND
8.
(KEY)
9.
Port2_L
10.
SENSE2_RETUR
4
