14
(3) LAN_LED (8-pin): LAN Activity LED Header
Pin 1
L
AN1
L
E
D+
2
L
AN2
L
E
D+
L
AN3
L
E
D+
L
AN4
L
E
D+
L
AN1
L
E
D
-
L
AN2
L
E
D
-
L
AN3
L
E
D
-
L
AN4
L
E
D
-
(4) COM2 (9-pin): RS232/422/485 Serial Port Header
Pin NO. RS232
RS422
RS485
Pin 1
DCD
TX-
DATA-
Pin 2
RXD
TX+
DATA+
Pin 3
TXD
RX+
NC
Pin 4
DTR
RX-
NC
Pin 5
GND
GND
GND
Pin 6
DSR
NC
NC
Pin 7
RTS
NC
NC
Pin 8
CTS
NC
NC
Pin 9
RI
NC
NC
*Notice: COM2 servers as RS232 serial port header in most cases.
RS422 &
RS485 function is only optional to customized models.
User also needs to go to BIOS
LAN_LED