38
Super A2SAN-H/-E/-L and X11SAN User's Manual
Serial COM Header (JCOM2/3)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
DCD3
2
DSR3
3
RXD3
4
RTS3
5
TXD3
6
CTS3
7
DTR3
8
RI3_N
9
GND
10
N/A
11
DCD4
12
DSR4
13
RXD4
14
RTS4
15
TXD4
16
CTS4
17
DTR4
18
RI4_N
19
GND
20
N/A
DESIGNED IN USA
A2SAN-L
REV: 2.00
JGP1
BT1
JCOM1: COM1/COM2
JCOM2: COM3/COM4
CPU1
FAN1
JPME2
JPF1
LAN1
LAN2
JD1
LVDS1
I-SATA1
JHDMI1
LED1
JLCDPWR1
JF1
JIP1
JPH1
JCOM3: COM5/COM6
AUDIO FP
USB6(3.1)
X
X
X
USB2/3
USB0/1
VGA
JF1
ON
PWR
RST
X
HDD LED
PWR LED
SPEAKER
JD1:
USB4/5(3.0)
COM Headers
Two COM headers (JCOM1: COM1/COM2 supports two RS232/RS422/RS485 and JCOM2/3:
COM3/COM4/COM5/COM6 supports four RS232) are located on the motherboard. COM 5/6
are only supported on A2SAN-H-WOHS. See the table below for pin definitions.
1
2
1. JCOM1
2. JCOM2
3. JCOM3
4. I-SATA1
SATA Ports
The A2SAN-H/-E/-L and X11SAN has one SATA 3.0 port (I-SATA1) that is supported by the
Intel® Atom SoC.
3
Serial COM Header (JCOM1)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
DCD1
or RS-485/422_COM1_TX- (Full Duplex)
or RS-485_COM1_Data- (Half Duplex)
2
DSR1
3
RXD1
or RS-485/422_ (Full Duplex)
or RS-485_CO (Half Duplex)
4
RTS1
5
TXD1 or RS-485/422_ (Full Duplex)
6
CTS1
7
DTR1 or RS-485/422_COM1_RX- (Full Duplex)
8
RI1_N
9
GND
10
N/A
11
DCD2
or RS-485/422_COM2_TX- (Full Duplex)
or RS-485_COM2_Data- (Half Duplex)
12
DSR2
13
RXD2
or RS-485/422_ (Full Duplex)
or RS-485_CO (Half Duplex)
14
RTS2
15
TXD2 or RS-485/422_ (Full Duplex)
16
CTS2
17
DTR2 or RS-485/422_COM2_RX- (Full Duplex)
18
RI_N2
19
GND
20
N/A
4