3
Quick Reference |
CS551
Pin RS232
RS422
RS485
1
DCD-
TXD-
Data-
2
RD
TXD+
Data+
3
TD
RXD+
N.C.
4
DTR-
RXD-
N.C.
5
GND
GND
GND
6
DSR-
N.C.
N.C.
7
RTS-
N.C.
N.C.
8
CTS-
N.C.
N.C.
9
RI-
N.C.
N.C.
COM Port Pin Assignment
Mini PCIe
M.2
M Key
Front
Audio
1
5
6
1
2
2
9
10
JP3
5
6
1
2
JP5
JP1
Buzzer
1
1
1
1
1
1
1
5
2
SATA 3.0
LVDS
Backlight
Power
SATA
Power
LVDS
Heater and Switch
LED1
LAN1
LAN2
DP++1/2
USB 3/4 (left), 1/2 (right)
(USB 3.1
Note
)
COM1
DIO
CPU Fan
USB 5/6 (USB 2.0)
1
2
2
1
1
1
1
2
9
10
10
9
2
1
10
9
39
40
SPI Flash BIOS
DDR4_1 SODIMM
SMBus
Battery
JP2
1
Pin Assignment
Pin Assignment
1
Mic-L
2
GND
3
Mic-R
4
N.C.
5
Line-Out-R
6
Mic-JD (sense)
7
GND
8
KEY
9
Line-Out-L
10
Line-JD (sense)
Front Audio Pin Assignment
Pin Assignment
Pin Assignment
1
DIO_6
2
DIO_7
3
DIO_4
4
DIO_5
5
DIO_2
6
DIO_3
7
DIO_0
8
DIO_1
9
GND
10
5VSB
Mini PCIe
M.2
M Key
Front
Audio
1
5
6
1
2
2
9
10
JP3
5
6
1
2
JP5
JP1
Buzzer
1
1
1
1
1
1
1
5
2
SATA 3.0
LVDS
Backlight
Power
SATA
Power
LVDS
Heater and Switch
LED1
LAN1
LAN2
DP++1/2
USB 3/4 (left), 1/2 (right)
(USB 3.1
Note
)
COM1
DIO
CPU Fan
USB 5/6 (USB 2.0)
1
2
2
1
1
1
1
2
9
10
10
9
2
1
10
9
39
40
SPI Flash BIOS
DDR4_1 SODIMM
SMBus
Battery
JP2
1
Digital I/O Pin Assignment
Heater Box Header
Heater Switch Pin Header
Pin Assignment
Pin Assignment
1
12V
2
12VSB_PG_SW
Pin Assignment
Pin Assignment
1
Manual Reset
2
12VSB_PG_SW
Mini PCIe
M.2
M Key
Front
Audio
1
5
6
1
2
2
9
10
JP3
5
6
1
2
JP5
JP1
Buzzer
1
1
1
1
1
1
1
5
2
SATA 3.0
LVDS
Backlight
Power
SATA
Power
LVDS
Heater and Switch
LED1
LAN1
LAN2
DP++1/2
USB 3/4 (left), 1/2 (right)
(USB 3.1
Note
)
COM1
DIO
CPU Fan
USB 5/6 (USB 2.0)
1
2
2
1
1
1
1
2
9
10
10
9
2
1
10
9
39
40
SPI Flash BIOS
DDR4_1 SODIMM
SMBus
Battery
JP2
1
Mini PCIe
M.2
M Key
Front
Audio
1
5
6
1
2
2
9
10
JP3
5
6
1
2
JP5
JP1
Buzzer
1
1
1
1
1
1
1
5
2
SATA 3.0
LVDS
Backlight
Power
SATA
Power
LVDS
Heater and Switch
LED1
LAN1
LAN2
DP++1/2
USB 3/4 (left), 1/2 (right)
(USB 3.1
Note
)
COM1
DIO
CPU Fan
USB 5/6 (USB 2.0)
1
2
2
1
1
1
1
2
9
10
10
9
2
1
10
9
39
40
SPI Flash BIOS
DDR4_1 SODIMM
SMBus
Battery
JP2
1
